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951 Old Rand Rd Suite 116
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
www.midwest-control.com
TECHNICAL DATA
Conrader Control Valves
Technical Data
Safety Valves Soft Seat ................................................................................ 2 , 3
Safety Valves Hard Seat…. .................................................................... ……..3, 4
Safety Valves Non Code ................................................................................. 4, 5
Relief Valves ......................................................................................................... 5
Stainless Steel Safety Valves ............................................................................. 6
In Tank Check Valves .................................................................................. 7,8,9
In Line Check Valves...................................................................................... 9,10
Pilot Unloader Valves ................................................................................. 11,12
Pilot Valves - Non Vented ................................................................................. 13
Pilot Valves - Vented ......................................................................................... 14
Discharge Valves, Cold Start ......................................................................... 15
Carry Tank Manifold, Service Manifold. ........................................................ 16
Pressure Control Regulator ............................................................................. 16
Filler Valve, Drain Cocks ........................................................................... 17,18
Automatic Tank Drain ...................................................................................... 18
Smart Start, Shuttle Valve .............................................................................. 19
Throttle Controls and Accessories ................................................................. 20
Safety Valve Capacity Chart ..................................................................... 21,22
Effective 4-4-2011 R1
Wauconda IL 60084
847-487-5599
847-487-0909
SRV ASME SOFT SEAT SAFETY VALVE
• Applications: Small Air Compressors with High Flow Requirements
• Pressure Range: 25 to 450 PSI
• Set Pressure Tolerances: ± 3% of Set Pressure
• Temperature Range : -65˚F to 400˚F
• Construction: Seat Cap & Piston C360 Brass ( ASTM B-16)
Part No.
Height
(In)
Hex
(In)
Wt.
Lbs.
1.75
11/16
0.150
SRV18
SRV25
SRV38
17-7 Stainless Steel Spring, Silicone Seal
•
Bubble Tight to Within 5 psig for Set pressure 50 psig or Less, Bubble Tight to Within 10% for Set Pressures
Greater Than 50 psig. 100% Testing or 2.5 AQL Sample Testing, Conforming to AP1 527
•
•
•
Stamped with the UV and NB Symbols
Everseal 483 Sealant Standard
Available Sizes: 1/8”, 1/4”, and 3/8” (BSPT Threads Available)
SRV187 ASME SOFT SEAT SAFETY VALVE
• Applications: Compact Size Low Flow
• Stock Pressure Range: 75, 125, 145, 150, 165, 200, 225 Other Pressures Available Up to 250 psig
• Set Pressure Tolerances: ± 3% of Set Pressure
• Temperature Range: -65˚F to 400˚F
• Construction: Seat Cap & Piston C360 Brass ( ASTM B-16) 17-7 Stainless Steel Spring, Silicone Seal
• Bubble Tight to Within 5 psig for Set pressure 50 psig or Less, Bubble Tight to Within 10% for Set Pressures
•
•
•
Available Size: 1/4” (BSPT Threads Available)
Part No.
SRV187-18
SRV187-25
SRV390
2
Height
(In)
Hex
(In)
Wt.
Lbs.
1.70
9/16
0.064
ASME SOFT SEAT SAFETY VALVE
•
•
•
•
•
•
Applications: Standard Flow Capacities
•
•
•
Part No.
Height
(In)
Hex
(In)
Wt.
Lbs.
SRV390
2.69
7/8
.281
Pressure Range: 25 to 300 PSI
Set Pressure Tolerances: ± 3% of Set Pressure
Temperature Range: -65˚F to 400˚F
Construction: Seat Cap & Piston C360 Brass ( ASTM B-16) 17-7 Stainless Steel Spring, Silicone Seal
Bubble Tight to Within 5 psig for Set pressure 50 psig or Less, Bubble Tight to Within 10% for Set Pressures
Wauconda IL 60084
847-487-5599
847-487-0909
SRV530
•
•
•
Applications: High Flow Requirements
Height
(In)
SRV530-50
3.66
SRV530-75
3.69
Hex
(In)
Wt.
Lbs.
1-1/16
.608
Construction: Seat Cap & Piston C360 Brass ( ASTM B-16) 17-7 Stainless Steel Spring, Silicone Seal
Bubble Tight to Within 5 psig for Set pressure 50 psig or Less, Bubble Tight to Within 10% for Set
Pressures Greater Than 50 psig
Available Sizes: 1/2”, 3/4” (BSPT Threads Available)
SRV765
•
•
•
•
•
Part No.
Applications: High Flow Requirements
Set Pressure Tolerances: ±3% of Set Pressure
Construction: Seat Cap & Piston C360 Brass ( ASTM B-16)
17-7 Stainless Steel Spring, Silicone Seal
Part No.
SRV765-10
SRV765-12
Height
(In)
4.47
Hex
(In)
1-5/8
1-11/16
•
Bubble Tight to Within 5 psig for Set pressure 50 psig or Less, Bubble Tight to Within 10% for
Set Pressures Greater Than 50 psig
•
•
•
Wt.
Lbs.
1.412
Available Sizes: 1”, 1-1/4” (BSPT Threads Available)
SRH
•
•
•
•
•
TECHNICAL DATA
•
•
•
•
•
•
ASME HARD SEAT SAFETY VALVE
Applications: Higher Temperature i.e. After coolers & Intercoolers
302 Stainless Steel Spring, 440 Stainless Steel Ball
•
No Audible Leak at 45% Set Pressure at 25-74 psig
No Audible Leak at 90% Set Pressure Above 74 psig
•
•
•
Stamped with UV and NB Symbols
Part No.
Height
(In)
Hex
(In)
Wt.
Lbs.
1.99
11/16
.123
SRH18
SRH25
SRH38
Available Sizes: 1/8”, 1/4”, 3/8” (BSPT Threads Available)
3
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
SRH375
•
•
•
•
•
•
•
•
•
Hex
(In)
Wt.
Lbs.
SRH375
3.41
7/8
.405
Part No.
Height
(In)
Hex
(In)
SRH580-75
5.04
1-3/16
SRH580-10
5.35
1-3/8
Part No.
Height
(In)
Hex
(In)
Wt.
Lbs.
SRV187-18-NC
1.65
.56
0.064
SRV187--25-NC
1.65
Set Pressure Tolerances:± 3% of Set Pressure
No Audible Leak at 90% Set Pressure Above 74 psig
•
•
•
Wt.
Lbs.
.717
Available Sizes: SRH580-75 3/4”, SRH580-10 1” (BSPT Threads Available)
SRV187- NC
4
Height
(In)
No Audible Leak at 45% Set Pressure at 25-74 psig, No Audible Leak at 90% Set Pressure Above 74 psig
•
•
•
•
•
Part No.
SRH580
•
•
•
•
•
NON CODE SAFETY VALVE
Applications: Non Code Compact Size Low Flow Requirements
Construction: Construction: Seat Cap & Piston
C360 Brass ( ASTM B-16)
•
No Audible Leak at 90% Set pressure Above 74 psig
•
•
Available Sizes: SRV187-18 1/8”, SRV187-25 1/4”
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
CNC
Applications: Non Code Safety Valve Field Adjustable
Knurled Thumbscrew & Jam Nut Make Adjustments Easy & Repeatable
Height (In)
Hex ( In)
Wt. Lbs
1.74
.625
.100
Temperature Range: 65ºF to 250ºF
Construction: C360 Machined Brass, Stainless Steel Spring, 30 Duro
Silicone Seal
•
Bubble Tight to Within 5 psig for Set pressure 50 psig or Less,
Bubble Tight to Within 10% for Set Pressures Greater Than 50 psig.
100% Testing or 2.5 AQL Sample Testing, Conforming to AP1 527
•
•
Available Size: 1/4”
PSI Range
Part No.
CNC25-001
Adjustable 25—50
CNC25-002
Adjustable 51-100
CNC25-003
Adjustable 101-150
CNC25-004
Adjustable 151-200
CNC25-K
MCNC25-K
CVR VACUUM RELIEF VALVE
• Applications: Used in Systems to Maintain a Desired Vacuum Level
• Relief Valves are Proportional - Not “Pop” Type Safety Valves
•
•
•
•
Kit Includes Safety Valve and
All Spring Sizes
Max. Recommended Vacuum Pump
Size
Not Preset - Field Adjustable
CVR-25
1/4HP
Knurled Adjustment Screw & Locked with Jam Nut
CVR-38
1HP
CVR-75
3HP
CVR-10
5HP
Pressure Range: 0-27” Hg
Construction: C360 Machined Brass Body, Stainless Steel Spring,
Nylon Piston, Nitrile Seal (CVR-25 - Stainless Steel Piston and Seal)
•
Bubble Tight to Within 5 psig for Set pressure 50 psig or Less, Bubble Tight to Within 10% for Set
Pressures Greater Than 50 psig. 100% Testing or 2.5 AQL Sample Testing, Conforming to AP1 527
•
•
Available Sizes: 1/4”, 3/8”, 3/4”, 1” & BSPT Threads
CPR SOFT SEAT RELIEF VALVE
• Applications: Use in Systems to Maintain Desired Pressure Level
• Proportional Relief Valves - Not “Pop” Type Safety Valves
Part No.
NPT
(In)
Available
Pressure Range
(PSI)
Flow
@ 5 PSI Crack
Pressure
CPR-25
1/4
10-60
50-125
100-200
2
CPR-38
3/8
0-20
5
CPR-75
3/4
0-20
1
0-20
Not Preset - Field Adjustable
•
•
•
TECHNICAL DATA
•
•
•
•
•
NON CODE RELIEF VALVE
Knurled Adjustment Screw & Locked with Jam Nut
Construction: C360 Machined Brass Body
Stainless Steel Spring, Nylon Piston, Nitrile Seal
(CPR-25 - Stainless Steel Piston and Seal)
•
Bubble Tight to Within 5 psig for Set pressure 50 psig or Less,
CPR-10
Bubble Tight to Within 10% for Set Pressures Greater Than
50 psig. 100% Testing or 2.5 AQL Sample Testing, Conforming to AP1 527
•
•
Available Sizes: 1/4”, 3/8”, 3/4”, 1” & BSPT Threads
10
5
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
SRH250-SS ASME HARD SEAT STAINLESS STEEL SAFETY VALVE
•
•
•
•
•
Construction: Construction: Seat Cap & Piston 304 Stainless Steel
•
•
•
Part No.
Height
(In)
Hex
(In)
Wt.
Lbs.
SRH250-SS
1.99
11/16
.123
Available Sizes: 1/4”
SRH375-SS ASME HARD SEAT STAINLESS STEEL SAFETY VALVE
•
•
•
•
•
6
Pressure Range: 50-350 PSI
Construction: Construction: Seat Cap & Piston 304 Stainless Steel
•
•
•
Part No.
Height
(In)
Hex
(In)
Wt.
Lbs.
SRH375-SS
3.41
7/8
.405
Available Size: 1/2”
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
IN TANK CHECK VALVES
CLTB SERIES (Female Pipe Inlet)
•
Construction: C360 Machined One Piece Brass Body, 302 Stainless Steel Spring
15% Glass Filled Teflon Poppet
•
•
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•
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•
•
Valves are 100% Tested for Backflow Leakage Performance
1 PSI Cracking Pressure
Maximum Pressure: 500 PSI
Maximum Temperature: 450˚ F
1/8” Tapped Port is Standard
CTLB7510T & Larger Are Repairable
A
B
FPT
Inlet
(In)
MPT
Outlet
(In)
HEX
(In)
Dim (A)
(In)
Dim (B)
(In)
Max
Flow Rate
Wt Oz.
CTLB2550T
1/4
1/2
7/8
2.74
1.86
20 SCFM
4.8
CTLB3838T
3/8
3/8
3/4
2.63
1.63
12 SCFM
2.7
CLTB3850T
3/8
1/2
7/8
2.86
1.86
20 SCFM
4.9
CLTB5050T
1/2
1/2
1.00
2.87
1.86
20 SCFM
6.0
CLTB5075T
1/2
3/4
1-1/16
3.10
2.09
30 SCFM
6.5
CTLB5010T
1/2
1
1-5/16
3.61
2.61
60 SCFM
11.2
CTLB7575T
3/4
3/4
1-3/16
3.33
2.09
30 SCFM
7.8
CTLB7510T
3/4
1
1-5/16
3.85
2.61
60 SCFM
11.7
CTLB7515T
3/4
1-1/2
2.00
3.39
2.84
150 SCFM
19.2
CTLB1010T
1
1
1-1/2
4.05
2.61
60 SCFM
13.6
CTLB1012T
1
1-1/4
1-3/4
4.03
2.84
130 SCFM
19.3
CTLB1212T
1-1/4
1-1/4
1-7/8
4.04
2.84
130 SCFM
16.8
CTLB1515T
1-1/2
1-1/2
2-1/8
4.04
2.84
150 SCFM
22
TECHNICAL DATA
Part No.
CTG SERIES ( Inverted Flared Inlet )
B
A
•
Construction: C360 Machined Brass Body Outlet, Plated Steel Tank End
302 Stainless Steel Spring, 15% Glass Filled Teflon Poppet
•
•
•
•
•
•
Maximum Temperature: 450˚F
Part No.
Inlet
Size
(Tube)
Outlet
NPT
(In)
Hex
(In)
Dim
(A)
(In)
Dim
(B)
(In)
Max
Flow
Rate
Wt.
Oz.
CTG5050TT
1/2
1/2
1.00
2.72
1.71
20 SCFM
4.53
CTG5875TT
5/8
3/4
1.19
2.75
1.75
30 SCFM
6.90
CTG7575TT
3/4
3/4
1.25
2.85
1.75
30 SCFM
6.37
CTG5050TT Includes 1/8” Invert Flare Tap and 1/8” NPT Tap
CTG7575TT & CTG5875TT Includes 1/8” Invert Flare Tap and 1/4” NPT Tap
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
CTLD SERIES ( Compression Inlet )
•
Construction: C360 Machined One Piece Brass Body, 302 Stainless Steel Spring,
15% Glass Filled Teflon Poppet
•
•
•
•
•
•
Part No.
Tube
Inlet
(In)
MPT
Outlet
(In)
Hex
(In)
Dim (A)
(In)
Dim (B)
(In)
Max Flow
Rate
Wt.
Oz.
CTLD3838T
3/8
3/8
11/16
2.56
1.63
12 SCFM
2.7
CTLD1650T
5/16
1/2
7/8
2.79
1.86
20 SCFM
4.3
CTLD3850T
3/8
1/2
7/8
2.79
1.86
20 SCFM
4.3
CTLD5038T
1/2
3/8
3/4
2.62
1.63
12 SCFM
2.8
CTLD5050T
1/2
1/2
7/8
2.90
1.86
20 SCFM
4.2
CTLD5075T
1/2
3/4
1-1/16
3.06
2.09
30 SCFM
3.9
CTLD7550T
3/4
1/2
1.00
2.92
1.86
20 SCFM
4.4
CTLD7575T
3/4
3/4
1-1/16
3.18
2.09
30 SCFM
7.2
CTLD7510T
3/4
1
1-5/16
3.91
2.61
60 SCFM
12.4
TECHNICAL DATA
8
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
IN TANK CHECK VALVES CTF SERIES ( JIC Inlet )
A
Construction: C360 Machined Brass Outlet, Plated Steel
Tank End, 302 Stainless Steel Spring, 15% Glass Filled
Teflon Poppet
•
Valves are 100% Tested for Backflow
Leakage Performance
•
•
•
•
•
Part No.
Inlet
(In)
Outlet
(In)
Hex
(In)
Dim (A)
(In)
Dim
(B)
(In)
CTF5050T
1/2
1/2
.88
2.88
1.67
3.67
20 SCFM
5/8
1/2
.88
3.10
1.67
CTF5875T
5/8
3/4
1.06
3.25
1.85
CTF7575T
3/4
3/4
1.06
3.37
1.85
CTF5050TT
1/2
1/2
.88
2.88
1.67
20 SCFM
3.67
CTF7575TT
3/4
3/4
1.06
3.37
1.85
30SCFM
5.94
Applications: Compressor Applications
Where an In Tank Check Valve Will Not Fit,
the CLB Valve Can Conveniently be Installed
Right in the Discharge Line of the Compressor
(Plug Not Shown)
Wt.
Oz.
CTF5850T
IN LINE VERTICAL CHECK VALVES CLB SERIES
CLB
Max
Flow Rate
•
Construction: C360 Machined Brass Body
302 Stainless Spring, 15% Glass Filled Teflon Poppet
•
•
•
•
A Plugged 1/8 NPT Unloader Port is Standard
Maximum Pressure 500 PSI
4.44
5.94
30SCFM
5.94
Part No.
FPT
Inlet/
Outlet
(In)
Hex
(In)
Length
(In)
Recommended
Max
Flow Rate
Wt.
Oz.
CLB25P
1/4
.69
2.63
10
2.82
CLB38P
3/8
.81
2.81
12
3.63
CLB50P
1/2
1.00
3.06
20
5.70
CLB75P-LF
3/4
1.25
3.24
30
11.39
CLB75P
3/4
1.37
3.64
CLB10P
1
1.50
4.02
CLB15P
1-1/2
2.13
4.45
CLB15P-HF
1-1/2
2-1/8
4.45
15.0
60
16.8
37.7
90
41.3
IN LINE CHECK VALVE LOW FLOW APPLICATIONS
CLC25
1/4
N/A
2.28
2.5
3.74
IN LINE CHECK VALVES CLC SERIES LOW FLOW APPLICATIONS
•
Construction: C360 Machined Brass Body, and Cap,
Viton O-Ring, and Nitrile Disc
•
•
•
CLC
9
TECHNICAL DATA
B
•
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
IN LINE CHECK VALVES CSL & CLSF SERIES
• Applications: Tank Check Valves for Small Air
Compressors or Components in Pneumatic Circuits
CLS
•
•
•
Pressure Range: 250 PSI
Construction:C360 Machined Brass Body
With Viton® O Rings, Brass Poppet and
Washer , Stainless Steel Spring
•
Bubble Tight Sealing Capabilities
at Low Pressure Drops
•
CLSF Series
Part No.
Inlet
(In)
Outlet
(In)
Hex
(In)
Length
(In)
Flow
Rate
Wt
Oz.
CLS2525
1/4
MNPT
1/4
MNPT
5/8
1.34
9
2
CLS2550
1/4
MNPT
1/2
MNPT
.875
1.34
9
2.4
CLSF2525
1/4
MNPT
1/4
FMPT
11/16
1.34
9
3
IN LINE CHECK VALVES VERTICAL OR HORIZONTAL
GV SERIES
•
•
Applications: Air Compressor Discharge Lines
•
•
•
•
Pressure Range: 250 PSI
Construction: Bronze Body, Corrosion Resistant Stainless Steel
Spring to Ensure Long Life, 15% Glass Filled Teflon Poppet, C360
Machined Brass Cap, 1/8 NPT Unloader Port is Standard
Cracking Pressure: 3 PSI
Repairable
Part No.
FPT
Inlet
(In)
GV18
1/8
GV25
1/4
Length
(In)
Height
(In)
Width
(In)
Recommend
Max Flow Rate
SCFM
Wt.
Oz.
1.76
1.78
1.04
12
5.12
GV38
3/8
1.85
1.81
1.13
22
6.02
GV50
1/2
2.28
2.24
1.44
38
10.21
GV75
3/4
2.54
2.39
1.62
60
12.19
GV10
1
3.00
2.68
1.97
115
23.10
GV12
1-1/4
3.60
3.33
2.38
GV15
1-1/2
3.97
3.43
2.75
GV20
2
4.91
4.00
3.32
160
220
38.50
51.97
90.38
10
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
PILOT UNLOADER VALVES
•
Application: Self Contained Unloading Valve
Can Be Used Wherever a Continuous Run Air Compressor Is Required
•
Combines All Components Required for Continuous Run Compressors:
Pilot Valve, Vent Valve and Check Valve
•
•
Eliminates the Need for Built in Head Unloaders
Easy Installation: Install the Piloted Unloader Valve into the Receiver and Attach the
Compressor Discharge Line to the Valve Inlet
•
Factory Preset
Cut- In : Cut- Out: Pressure (Standard) 95 – 115, Optional High Pressure 145 - 175
Minimum Cut- In: 40 PSI
Maximum Cut- Out: 250 PSI
Can be Field Adjusted
•
Construction: Forged Brass Body, 15% Glass Filled Teflon CV Piston and Unloader, 302 Stainless Steel Spring,
and Pilot Valve Ball
•
•
•
•
•
•
•
Tapped & Plugged 1/8” Port for Throttle Control of a Gas Engine
1/8” NPT Tapped Port for Pressure Switch Unloader Valve and Vent Port Muffler
A Toggle Unloading Lever for One Hand Warm Up Control
Optional Muffler EM-50 Available for Model NLG
Optional Inlet and Outlet Ports Available— Consult Price List
Optional Provisions to Add a Safety Valve Port - Consult Price List
Part No.
Flow
NSG
30
NG
30
NLG-1
60
PILOTED UNLOADER VALVE NSG
Inlet Port
Vent 1/4 NPT
Female
Alternate Inlet Port
Opposite Throttle Control Port
Throttle Control Port
Outlet Port
11
TECHNICAL DATA
Muffler Included (Not Shown) for Models NSG, NG
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
PILOT UNLOADER VALVE NG
Optional Inlet Ports
Throttle Control
Port
Vent 3/8 NPT Female
5.25
4.09
2.54
3.16
Outlet Port
PILOT UNLOADER VALVE NLG-1
Inlet Port
Vent 1/2 NPT Female
Throttle
Control Port
Outlet Port
12
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
UNLOADER PILOT VALVES, NON VENTING STYLE
Unloader Pilot Valves are Used In Compressed Air Systems to Actuate
Another Device Using a Pneumatic (Air) Signal. Unloader Pilot Valves
Always Work in Conjunction with Another Device.
Typical Applications
•
•
•
Pilot Valves Operate in a Set Pressure Range. The Range has an Unload
Setting and a Load Setting. As a Compressor Operates in This Range, It is
Said to Be Cycling.
Construction: C360 Machined Brass Body, Music Wire Spring,
Stainless Steel Pilot Valve Ball
•
•
Opening and Closing a Discharge Valve to Vent Air to Atmosphere
Operating the Intake Unloaders in the Compressor Head
Dual Control - Hand Unloader
At the Unload Setting the Pilot Valves Opens and Actuates Another Device
(Throttle Control, Discharge Valve). At the Load Setting the Pilot Valve
Closes and Returns the Compressor to Normal Operation.
•
Actuating a Throttle Control to Slow Down and Speed Up an Engine
•
The Hand Unloader is Typically Used to Manually Unload
the Compressor
•
Dual Control is Typically Used on Electric Compressors to Select
From Stop Start to Constant Speed Operation
Field Adjustable
(For All Models Except RCL, RCLD)
•
•
Minimum Cut- In Pressure: 40 PSI
Maximum Cut- Out Pressure: 250PSI
For RCL, RCLD
Maximum Cut- Out Pressure: 1200 PSI
Part No.
Cut In
Cut Out
PILOT VALVE WITH HAND UNLOADER AND MOUNTING BOSS
RCT-HU95-115
95
115
RCT-HU145-175
145
175
PILOT VALVE WITH HAND UNLOADER
Outlet
1/4 F x 1/8 F
1/4 Female
1/8 Female
RCT-HU
w/Hand Unloader
1/4 F x 1/8 F
RCB-HU95-115
95
115
RCB-HU145-175
145
175
PILOT VAVLE WITH STRAIGHT STEM START STOP OPERATION
RCBM-95-115
Inlet
95
115
RCBM-HU95-115
95
115
RCBM-HU145-175
145
175
1/4 Female
RCB-HU
w/Hand Unloader
1/8 Female
1/4 M x 1/8 F
1/4 Male
1/8 Female
1/4 M x 1/8 F
1/4 Male
1/8 Female
RCBM
w/Dual Control
RCL-HU
w/Hand Unloader
RCQ-HU
w/ Hand Unloader
3/8 F x 1/4 F
RCL-HU125-150
125
150
RCL-HU145-175
145
175
3/8 Female
1/4 Female
PILOT VALVE WITH HAND UNLOADER (Typically Used on Quincy Compressors) 1/4 F x 1/4 F
RCQ-HU100-110
100
110
RCQ-HU180-200
180
200
PILOT VALVE WITH DUAL CONTROL
1/4 Female
RCB-DC
w/Dual Control
1/4 F x 1/8 F
RCB-DC95-115
95
115
RCB-DC145-175
145
175
1/4 Female
PILOT VALVE WITH DUAL CONTROL
100
125
RCL-DC145-175
145
175
3/8 Female
RCL-DC
w/ Dual Control
1/8 Female
3/8 F x 1/4 F
RCL-DC100-125
13
1/4 Female
1/4 Female
Typical Dual Control
The DC Dual Control is Used On
Electric Compressors to Select
Start/Stop or Constant Speed
Control
*** Other Cut In—Cut Out Settings Available Consult Midwest Control
TECHNICAL DATA
•
•
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
UNLOADER PILOT VALVES, VENTING STYLE
Piloted Unloader Valves are Used in Constant Speed Applications Where There
are No Intake Unloaders Present. They Incorporate a Discharge Unloader on the
Body of a Pilot Valve to Allow One Valve to Sense System Pressure and Vent
Discharge Air to Atmosphere. At Load Pressure, the Pilot Valve Closes the Discharge Unloader and the Compressor Returns to Normal Operation.
Piloted Unloader Valves Require a Separate Check Valve from Which a Line
Must be Run to the Discharge Inlet.
Optional Muffler Kit Part No. BG-M-KIT Available for BG1 Series
(Direct Unported Vent Models)
Part No.
Cut In
Cut
Out
Discharge
Inlet
95
115
BG1-HU145-175
145
175
1/4
Compression
Pilot
Inlet
Vent
95
115
BG2-HU145-175
145
175
1/4
Female
1/4
Male
Direct
Unported
110
135
1/4
Female
1/4
Male
110
135
1/4
Compression
Direct
Unported
1/4
Male
Direct
Unported
95
115
BLG-HU145-175
145
175
1/2
Female
1/4
Male
1/4
Female
Throttle
Control Port
Typical Connections
Discharge Exhaust Unported
Field Adjustable
Maximum Cut- Out Pressure: 250 PSI
•
The Hand Unloader is Typically Used to Manually Unload the
Compressor
•
Dual Control is Typically Used on Electric Compressors to Select
From Stop Start to Constant Speed
Stem
SCFM
Capacity
Hand
Unloader
20
BG1
Hand
Unloader
20
Dual
Control
20
Dual
Control
20
BG2
1/4 C x 1/4 M
HIGH FLOW PILOT VALVE WITH HAND UNLOADER FEMALE DISCHARGE
BLG-HU95-115
•
•
•
1/4 F x 1/4 M
PILOT VALVE WITH DUAL CONTROL COMPRESSION DISCHARGE
BE1-110-135
Maximum Temperature: 450ºF
(BLE 500ºF)
1/4 F x 1/4 M
PILOT VALVE WITH DUAL CONTROL FEMALE DISCHARGE
BE2-110-135
•
1/4 C x 1/4 M
PILOT VALVE WITH HAND UNLOADER, FEMALE DISCHARGE
BG2-HU95-115
Construction: Forged Brass Body, Stainless Steel Spring, and Pilot
Ball Valve, 15% Glass Filled Teflon Unloader
Dual Control - Hand Unloader
PILOT VALVE WITH HAND UNLOADER, COMPRESSION DISCHARGE
BG1-HU95-115
•
Direct
Unported
BE2
1/2 F x 1/4 F
1/2
Female
Hand
Unloader
Discharge Inlet
1/4 NPT Female
Pilot Inlet 1/4 NPT
Male
BE1
60
BLG
14
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
DISCHARGE VALVES D SERIES
Applications: Constant Speed Applications, Where Intake Unloaders are Not Present
The Discharge Valve is Controlled by a Pilot Device that Signals the Normally Closed Valve to Open at
the Unload Pressure. When Open, the Discharge Valve Vents the Discharge Line Air to Atmosphere.
When System Pressure Drops to Load Pressure, the Pilot Valve Closes the Discharge Valve and the
Compressor Returns to Normal Operation
Construction:C360 Machined Body, Stainless Steel Spring, Viton Diaphragm
Maximum Operating Temperature: 450ºF
Part No.
Discharge
Inlet (In)
D
1/8 NPT
D3
1/4 Compression
D4
1/4 FNPT
DL
1/2 FNPT
Pilot Inlet
(In)
Vent
(In)
Flow
(SCFM)
Max. Operating
Pressure
1/8 FNPT
1/4 FNPT
20
250 PSI
1/4 FNPT
1/2 FNPT
60
500 PSI
TECHNICAL DATA
•
•
AUXILIARY UNLOADER (COLD START)
•
Application: Bleeds Air From the Compressor Head During the First Few Revolutions,
Reducing Motor Starting Torque .
•
Typical Applications are Oil Lubed Pumps That are Subject to Low Temperatures and Low
Starting Voltages, i.e. a Contractor Unit that May Sit Outside Overnight and be Connected
to a Long Extension Cord.
•
Construction: C360 Machined Brass Body & Stem,
302 Stainless Steel Spring and Viton O Ring
•
•
Maximum Operating Temperature: 500ºF
•
Minimum Close Pressure: 30 PSIG
Maximum Close Pressure: 40 PSIG
Part No.
Available Sizes: 1/8”, 1/4”
SU3-18
1/8
SU3-25
1/4
NPT (In)
Flow (SCFM)
5
15
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
CARRY TANK MANIFOLDS CTM SERIES
•
•
•
•
Includes a Tank Filler Valve into the Built In Shut Off Valve
Mates to a Typical Tire Chuck for Easy Tank Pressurization
Safety Valve is Factory Preset at 150 PSI
Includes Tank Pressure Gauge Port
Inlet
Male
(In)
Outlet
Female
(In)
Gauge
Port
(In)
Hex
(In)
OAL
(In)
Wt.
Oz.
1/2
1/4
1/4
7/8
1.84
4.8
SM5590 SERVICE MANIFOLD W/INTEGRAL SAFETY VALVE
•
•
Applications: Suitable for Compressors 3 Hp & Smaller
•
Includes Pressure Switch Mount & Tank Pressure Gauge Port Which
Allows All Control & Outlet Functions to Be Connected to the 1/2” NPT
Tank Port
•
•
•
Features Forged Brass Body, Easy Use Shut Off Lever (Ball Valve Type
Design w/Stop and Loaded Teflon Seal Which Prevents Leakage) and
Stainless Steel Springs
Stock Pressure for Safety Valve 125,135,150,200
Inlet
Male
(In)
Outlet
Female
(In)
Gauge
Port
(In)
OAL
(In)
Wt.
Oz.
1/2
1/4
1/4
2.51
4.59
(Custom Pressures Up to 200 PSI Also Available)
PRESSURE CONTROL REGULATOR PC SERIES
•
Applications: Designed to be Installed into the Head of a Small Compressor (Less than 2HP) Direct
Drive, Tankless; Where a Variable Pressure Relief Valve is Required
•
•
A Micrometer Type Scale Allows for Easy & Accurate Adjustment from 0-100 PSI
•
•
•
Construction: Brass body & Internals, Stainless Steel
Poppet with Fluorocarbon O-Ring
Nylon Knob
Maximum Flow 6 SCFM at 100 PSI
Part No.
Range
PC-25
10-100 PSI Adjustable
16
CTM & PC Are Not Manufactured by Conrader
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
FILLER VALVE TV SERIES
•
Applications: Use Wherever a Method of Inflating a Tank with a
Standard Air Chuck is Required
•
•
•
•
•
Construction: Brass Valve Core with Viton ® and Teflon ®Seals
Black Plastic Cap Included
1/8” NPT
Part No.
Height (In)
TV-12
1.38
•
Applications: Compressor Receivers, Radiators and Pool Equipment
Where Stem Removal is Not a Requirement.
•
•
•
•
•
Construction Brass Body & Stem with Zinc Plated Steel Handle
Maximum Temperature 200 ˚F
Part No.
NPT
(In)
DCE-12
1/8
Available Sizes: 1/8”, 1/4”, 3/8”, 1/2”
DCE-25
1/4
DCE-38
3/8
DCE-50
1/2
DRAIN COCKS DT SERIES
17
•
Applications: Designed for Applications where the
Traditional Drain cock is Easily Damaged
•
•
•
•
•
•
•
Opens Easily and Closes with Minimum Effort
Construction: Brass Body & Knurled Brass Stem
Nitrile O-Ring Ensures a Bubble Tight Seal
1/4” Connection
TV, DCE & DT Are Not Manufactured by Conrader
TECHNICAL DATA
DRAIN COCKS DCE SERIES
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
DRAIN COCK with PULL CORD DP & DM SERIES
•
•
•
•
•
•
Applications: Industrial and Automotive
Brass Stem Tilts to Open the Valve at Minimum Pull Cord Force
Stainless Steel Spring Returns the Stem to Positively Seal
Against the Nitrile O-Ring when Force on the Cord is Release
Construction: Brass Body, Washer and Stem
Everseal 483 Sealant Standard (MCDP)
Part No.
Cable Length
DP25
60”
DM25
36”
AIR AUTOMATIC TANK DRAIN WV
Pilot 1/8 Female
Inlet 1/4 Male
An Air Operated Automatic Tank Drain Valve. It Removes System
Condensation When Actuated at the Load and Unload Pressures.
•
•
•
•
Outlet 1/4 Female
•
•
For Use on Compressors 5hp and Smaller
Compact Design
Solid Brass Body and Screened Inlet Port
Construction: C360 Machined Body, Inlet Screen, Stainless Steel
Spring, Viton
Diaphragm and Seals
Maximum Operating Pressure: 500 PSIG
AIR AUTOMATIC TANK DRAIN with INSTALLATION KIT WV-1-1K
An Installation Kit Includes Everything You Need to Get the WV-1
Automatic Tank Drain Up and Running
•
•
•
•
The Kit Includes the WV-1 Drain Valve with Push-In Fitting Installed
Push-to-Connect T, Petcock
8 ft. of Nylon Tubing
Installation Instructions that Cover Most Compressor Applications
18
DP & DM Are Not Manufactured by Conrader
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
SMART START®
Smart Start Eliminates Compressor Starting Problems, It Automatically Allows the Compressor Motor to
Reach Full Speed Prior to Running Under Loaded Conditions
The Smart Start Accomplishes a Loadless Start by Controlling the Compressor Inlet. Simply Replace the
Standard Inlet Filter on the Compressor with the Smart Start and Starting Problems Disappear
Benefits
•
•
Smart Start Reduces Amperage Draw During Start Up and Eliminates Tripped Circuit Breakers
Compensates for Starting Voltage Drops and Allows the Use of Multiple Tools on the Same Circuit
Worry Free Operation Cold Weather and Extension Cords Won’t Stop Compressor from Starting.
Eliminates the Need for Unloaders that Blow System Air to Atmosphere and Increase Pump Up Time
Construction: Nylon Body, 302 Stainless Steel Spring, Nitrile Diaphragm, 45 PPI Foam Filter
Maximum Operating Temp: 300ºF
Part No.
Inlet Size
(In)
AIC38
3/8
AIC50
1/2
Flow
(SCFM)
15
SHUTTLE CONTROL VALVE SCV
Inlet 1/4 Female
A Shuttle Control Valve Designed for Applications Where it is Necessary
to Control One Device From Two Sources
Outlet 1/4
Compression
•
•
•
Features a Positive Sealing Piston, Brass Body Construction
500 PSI Maximum Working Pressure
Maximum Operating Temp: 250ºF
Inlet 1/4 Male
19
TECHNICAL DATA
•
•
•
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
THROTTLE CONTROLS & ACCESSORIES
Applications: Used on Gas Engine Driven Compressors to Reduce Engine Speed to Idle.
When the Continuous Run Control Pilot (Pilot Unloader Valve or Pilot Valve) has Reached It's Cut Out Setting It
Saves Fuel and Reduces Engine and Compressor Wear.
The 1/8” Male Inlet is Connected to the Throttle Control Port of the Vent Unloader or Connected to
a “Tee” Off the Head Unloader Line for Pilot Valve Installations.
The Cable is Attached to the Appropriate Throttle Linkage on the Engine. The Cable Housing Should be
Anchored Using the Supplied Cable Clamps.
During Operation the Vent Unloader or Pilot Valve Sends a Pressure Signal to the Throttle Control at the Cut Out Setting,
Causing the Throttle Control Piston to Extend the Control Cable which Pushes the Throttle Lever, Causing the Engine to Idle Down.
At the Cut In Setting the Pressure Signal Going to the Throttle Control is Vented, Allowing the Spring to Return the Piston
Cable and Throttle Lever to the Original Full Speed Position.
•
•
•
•
•
•
•
•
Construction: Brass Body and Piston, Stainless Steel Wire, Corrosion Resistant Molybdenum Filled Nylon Casing, Viton O Ring Seal
BWTCP
Minimum Pressure: 40 PSI
Maximum Temperature: Operating Mechanism 450˚F
Everseal 483 Sealant Standard BWTCP, and BWTCLP
Available Lengths: 12”, 18”, 24”, 30”, 36”, 48”,60”
Custom Lengths Available Consult Midwest Control
BWTCLP
Standard HP Range: BWTCP 2 - 8HP, “BWTCLP” Heavy Duty Series 8HP & Higher
BWTCP & BWTCLP Series Includes Cable Clamp with Locking Tab for Installation on Engine Shroud
and Threaded Setting Clamp for Installation on Throttle Plate
BWTCSP-H-5565-B
Part No.
Length
(In.)
BWTCP 1/8” PILOT CONNECTION
FOR SYSTEMS WITH EXTERNAL
UNLOADERS
(For Compressors with External Unloading Devices and Engines Up to 8 Hp)
Length
(In.)
Part No.
BWTCLP 1/8” PILOT CONNECTION FOR
SYSTEMS WITH EXTERNAL UNLOADERS
(For Compressors with External Unloading
Devices and Engines 8 Hp and Above)
BWTCP12-0817
12
BWTCLP12-0817
12
BWTCP18-0817
18
BWTCLP18-0817
18
BWTCP24-0817
24
BWTCLP24-0817
24
BWTCP30-0817
30
BWTCLP30-0817
30
BWTCP36-0817
36
BWTCLPC36-0817
36
BWTCP48-0817
48
BWTCLP48-0817
48
BWTCP60-0817
60
BWTCLP60-0817
60
Part No.
Length
(In.)
BWTCSP 1/4” TUBE CONNECTION “AIRLINE STYLE”
INCLUDES MOUNTING HARDWARE
BWTCSP-H-5565-B
Honda 4/5.5/ 6.5 Hp Engines
12
BWTCSP-H-0809-B
Honda 8/9 Hp Engines
12
BWTCSP-H-1113-B
Honda 11/13 Hp Engines
12
BWTCSP-R-456-B
Robin 4.5-6 Hp Engines
12
BWTCSP-R-0811-B
Robin 9Hp and Above Engines
12
THROTTLE CONTROL ACCESSORIES
Briggs/Honda
C Style Clamp
20
Swivel Clamp
Cable Clamp
with Locking Tab
Honda Bushing
Threaded Casing Clamp
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
Safety Valve Capacity Chart
PSIG
SRV
18/25/38
SRV187
SRV390
SRV530
SRV765
25
31
17
66
143
304
142
30
35
19
73
159
340
158
35
39
21
82
178
379
177
40
43
24
90
196
418
195
45
47
26
99
215
457
213
50
51
28
108
233
497
50
116
232
55
55
30
116
251
536
54
125
250
60
59
33
125
270
575
58
134
268
65
63
35
133
288
614
62
143
287
70
67
37
142
307
654
66
153
305
75
71
39
150
325
693
69
162
323
80
75
42
159
344
732
73
171
341
85
SRH375
SRH580
80
44
167
362
771
77
180
360
90
84
46
176
380
811
81
189
378
95
88
48
184
399
850
85
199
396
100
92
51
193
417
889
89
208
415
105
96
53
201
436
928
93
217
433
110
210
454
967
97
226
451
100
55
115
104
57
218
473
1007
101
235
470
120
108
60
227
491
1046
105
244
488
125
112
62
235
509
1085
109
254
506
130
116
64
244
528
1124
113
263
525
135
120
66
252
546
1164
117
272
543
140
124
69
261
565
1203
121
281
561
145
128
71
270
583
1242
125
290
580
150
132
73
278
601
1281
129
300
598
155
137
75
287
620
1321
133
309
616
160
141
78
295
638
1360
137
318
635
165
145
80
304
657
1399
141
327
653
170
149
82
312
675
1438
145
336
671
175
153
84
321
694
1477
149
346
689
180
157
87
329
712
1517
153
355
708
185
161
89
338
730
1556
157
364
726
346
749
1595
161
373
744
190
165
91
195
169
93
355
767
1634
165
382
763
200
173
96
363
786
1674
168
391
781
TECHNICAL DATA
SRH
18/25/38
21
Wauconda IL 60084
P 847-487-5599
F 847-487-0909
Safety Valve Capacity Chart
PSIG
SRV
18/25/38
SRV187
SRV390
SRV530
SRV765
SRH
18/25/38
SRH375
SRH580
205
177
98
372
804
1713
172
401
799
210
181
100
380
823
1752
176
410
818
215
185
102
389
841
1791
180
419
836
220
189
105
397
859
1831
184
428
854
225
194
107
406
878
1870
188
437
873
230
198
109
414
896
1909
192
447
891
235
202
112
423
915
1948
196
456
909
240
206
114
431
933
1987
200
465
928
245
210
116
440
952
2027
204
474
946
250
214
118
449
970
2066
208
483
964
255
218
457
988
2105
212
492
983
260
222
466
1007
2144
216
502
1001
265
226
474
1025
2184
220
511
1019
270
230
483
1044
2223
224
520
1037
275
234
491
1062
2262
228
529
1056
280
238
500
1081
2301
232
538
1074
285
242
508
1099
2341
236
548
1092
240
557
1111
290
246
517
1117
2380
295
251
525
1136
2419
244
566
1129
300
255
534
1154
2458
248
575
1147
305
259
252
584
310
263
256
594
315
267
260
603
320
271
264
612
325
275
267
621
330
279
271
630
335
283
275
639
340
287
279
649
345
291
283
658
350
295
287
667
360
303
370
312
380
320
390
328
400
336
410
344
420
352
430
360
440
369
450
377
22

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