THE ONLY WAY

THE
ONLY WAY TO ISOLATE
CIRCULATOR PUMPS
PATENTED
TECHNOLOGY
These valves have revolutionized the installation of
circulator pumps. Our original Isolator® Uni-Flange
Ball Valve design has evolved into the largest
flanged ball valve program in the industry today.
• Heavy duty forged brass construction
• Unique uni-body design
• Blowout proof stem
• Adjustable packing gland
• Conical inlet to minimize turbulence
• Slotted holes for high velocity pumps
• Fits virtually every circulator pump
• Guaranteed for life
THE ISOLATOR® UNI-FLANGE BALL VALVE
NO.
C
9
10
D
H
H
8
F
F
6
7
FLANGE FOR HIGH
VELOCITY PUMP MODELS
FLANGE FOR
REGULAR MODELS
A
12
11
5
2
4
9
3
1
B
E
G
G
I
I
THE ISOLATOR® W/ DRAIN
NO.
C
A
10
D
2
11
8
7
19
1
14
12
18 15 16
3
5
13
17
B
4
9
6
20
E
FLANGE FOR
REGULAR MODELS
F
21
J
FLANGE FOR HIGH
VELOCITY PUMP MODELS
H
H
F
22
9
G
G
I
I
1
2
3
4
5
6
7
8
9
10
11
12
23
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
DESCRIPTION
MATERIAL
FLANGED BODY
END CAP
SEATS
BALL
STEM
STEM SEAL
PACKING GLAND
LEVER HANDLE
HANDLE NUT
HANDLE JACKET
WING STYLE “T” HANDLE
FLANGE BOLTS & NUTS
BRASS
BRASS
PTFE
BRASS HCP
BRASS
PTFE
BRASS
STEEL CP
STAINLESS STEEL
VINYL
STEEL CP W/ VINYL GRIPS
STEEL ZP
DESCRIPTION
MATERIAL
BODY
END CAP
SEATS
BALL
STEM
STEM SEAL
PACKING GLAND
LEVER HANDLE
HANDLE NUT
HANDLE JACKET
SEAT RETAINER
DRAIN END CAP
DRAIN SEATS
DRAIN BALL
DRAIN STEM
DRAIN STEM SEAL
DRAIN PACKING GLAND
DRAIN HANDLE
DRAIN HANDLE SCREW
WASHER
CAP AND STRAP
FLANGE BOLTS & NUTS
WING STYLE “T” HANDLE
BRASS
BRASS
PTFE
BRASS HCP
BRASS
PTFE
BRASS
STEEL CP
STAINLESS STEEL
VINYL
BRASS
BRASS
PTFE
BRASS HCP
BRASS
PTFE
BRASS
ENAMEL COATED ALUMINUM
BRASS
EPDM
BRASS W/ EPDM STRAP
STEEL ZP
STEEL CP
THE ISOLATOR® UNI-FLANGE BALL VALVE
Full Port Forged Brass Uni-Flange Ball Valves
w/ Adjustable Packing Gland, Bonus Wing Style “T” Handle, Nuts & Bolts
SWT
IPS
SIZE
1/2"
3/4"
1"
1 1/4"
1 1/2"
2"
1/2"
3/4"
1"
1 1/4"
1 1/2"
2"
STANDARD BRASS
ITEM # CTN/CASE
40402
40403
40404
40405
40406
40407HV
50402
50403
50404
50405
50406
50407HV
2/20
2/20
2/20
2/20
2/20
2/10
2/20
2/20
2/20
2/20
2/20
2/10
ISO 9001
600 WOG
A
B
C
D
E
F
FHV
G
GHV
H
I
1/2
3/4
1
1 1/4
1 1/2
2
1/2
3/4
1
1 1/4
1 1/2
2
2 1/4
2 3/8
2 11/16
2 7/8
4
4 7/16
2 1/8
2 9/16
2 15/16
3 1/8
4 3/8
5 1/16
1 7/8
2 1/16
2 1/2
2 3/8
3 3/8
3 3/4
1 7/8
2 1/16
2 1/2
2 13/16
3 3/8
3 3/4
3 7/8
3 7/8
4 5/8
4 5/8
5 9/16
5 9/16
3 7/8
3 7/8
4 5/8
4 5/8
5 9/16
5 9/16
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
-
5/8
5/8
5/8
5/8
5/8
5/8
5/8
5/8
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
-
1 1/2
1 1/2
1 1/2
2
1 1/2
1 1/2
1 1/2
2
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
1" – 1 1/2" sizes also available for High Velocity pumps - to order, add HV onto the end of the part #. 2" Available in High Velocity only.
HV models fit both Standard & High Velocity pumps.
SIZE
STANDARD BRASS
ITEM # CTN/CASE
3/4"
1"
1 1/4"
1 1/2"
2"
3/4"
1"
1 1/4"
1 1/2"
2"
40413
40414
40415
40416
40417HV
50413
50414
50415
50416
50417HV
2/20
2/20
2/20
2/10
1/10
2/20
2/20
2/20
2/10
1/10
ISO 9001
600 WOG
A
B
C
D
E
F
FHV
G
GHV
H
I
J
3/4
1
1 1/4
1 1/2
2
3/4
1
1 1/4
1 1/2
2
3 9/16
4 3/16
4 7/16
5 3/8
6 1/2
4
4 1/2
4 3/4
5 13/16
7 3/16
2 1/4
2 3/8
2 7/8
3 1/4
3 1/4
2 1/4
2 3/8
2 7/8
3 1/4
3 1/4
4
4 5/8
4 5/8
5 1/2
5 1/2
4
4 5/8
4 5/8
5 1/2
5 1/2
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
-
5/8
5/8
5/8
5/8
5/8
5/8
5/8
5/8
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
-
1 1/2
1 1/2
1 1/2
2
1 1/2
1 1/2
1 1/2
2
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
1/2
1/2
3/4
3/4
3/4
1/2
1/2
3/4
3/4
3/4
1" – 1 1/2" sizes also available for High Velocity pumps - to order, add HV onto the end of the part #. 2" Available in High Velocity only.
HV models fit both Standard & High Velocity pumps.
THE ISOLATOR®
CIRCULATOR PUMP INSTALLATION KIT
1 ISOLATOR
1 ISOLATOR W/ DRAIN
2 FULL-FACED FLANGE GASKETS
2 SETS OF NUTS & BOLTS
2 BONUS WING STYLE “T” HANDLES
3/4"
1"
1 1/4"
3/4"
1"
1 1/4"
IPS
SWT
STANDARD BRASS
ITEM #
CTN/CASE
40413KIT
40414KIT
40415KIT
50413KIT
50414KIT
50415KIT
1/10
1/10
1/10
1/10
1/10
1/10
• Replaces 6 individual components
• Eliminates 5 leak paths
• Saves nearly 45 minutes of labor
• Prevents electrolysis
On
• Eliminates galvanic corrosion
Off
On
SIZE
THE WEBSTONE WAY
Ball Valve
THE OLD WAY
EVERYTHING
BUT THE PUMP!
Off
SWT
IPS
THE ISOLATOR® W/ DRAIN
Full Port Forged Brass Uni-Flange Ball Valves w/ Hi-Flow Hose Drain
w/ Adjustable Packing Gland, Bonus Wing Style “T” Handle, Nuts & Bolts
• Allows virtually no air into system
upon pump replacement
ROTATING FLANGE
The features and benefits you trust in our
original Isolator® line with two versatile
enhancements. First, 360º flange rotation that
allows for rotation to any degree necessary for
your installation. Second, a multi-function drain
that makes the Isolator the only valve that
drains from both sides of the pump!
MULTI-FUNCTION
180° handle rotation
easily diverts fluid into
the drain from either
side of the ball
• Unique uni-body design is preserved
PATENTED
TECHNOLOGY
• Solid forged brass outer flange
• Fully removable outer flange
secured by snap ring
• Multi-function drain
• 3-Way valve purges before
or after the pump
• Guaranteed for life
PATENTS PENDING
THE ISOLATOR® W/ ROTATING FLANGE
NO.
D
14
7
5
10
11
8
13
12
1
6
2
C
H
F
G
A
I
REGULAR FLANGE
3
H
F(HV)
4
E
B
I
11
HIGH VELOCITY FLANGE
9
11
THE ISOLATOR® W/ ROTATING FLANGE
& MULTI-FUNCTION DRAIN
5
D
9
10
G
A
8
13
NOW AVAILABLE
WITH PRESS
CONNECTIONS
SEE BACK COVER
FOR DETAILS
15 16
NO.
1
19
14
6
3
C
17 11
4
2
12
J
20
F
H
18
E
7
F
H
I
I
REGULAR FLANGE
HIGH VELOCITY FLANGE
B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DESCRIPTION
MATERIAL
FLANGED BODY
END CAP
SEATS
BALL
STEM
STEM SEAL
PACKING GLAND
LEVER HANDLE
WING STYLE “T” HANDLE
HANDLE NUT
HANDLE JACKET
ROTATING FLANGE
ROTATING FLANGE RING
FLANGE BOLTS & NUTS
BRASS
BRASS
PTFE
BRASS HCP
BRASS
PTFE
BRASS
STEEL CP
STEEL CP
STAINLESS STEEL
VINYL
BRASS
STAINLESS STEEL
STEEL ZP
DESCRIPTION
MATERIAL
FLANGED BODY
END CAP
SEATS
BALL
STEM
STEM SEAL
PACKING GLAND
HANDLE
HANDLE NUT
HANDLE JACKET
DRAIN VALVE SEATS
DRAIN VALVE BALL
DRAIN VALVE STEM
DRAIN VALVE STEM SEAL
DRAIN VALVE HANDLE
DRAIN VALVE HANDLE SCREW
DRAIN VALVE CAP, WASHER & STRAP
ROTATING FLANGE
ROTATING FLANGE RING
FLANGE BOLTS & NUTS
BRASS
BRASS
PTFE
BRASS HCP
BRASS
PTFE
BRASS
STEEL CP
STAINLESS STEEL
VINYL
PTFE
BRASS HCP
BRASS
PTFE
ENAMEL COATED ALUMINUM
BRASS
BRASS W/EPDM WASHER & STRAP
BRASS
STAINLESS STEEL
STEEL ZP
THE ISOLATOR® W/ ROTATING FLANGE
Full Port Forged Brass Uni-Flange Ball Valves w/ Detachable Rotating Flange,
Adjustable Packing Gland, Bonus Wing Style “T” Handle, Nuts & Bolts
ISO 9001
600 WOG
STANDARD BRASS LEAD-FREE BRASS
SWT
IPS
Cer tified to NSF/ANSI
61 & NSF/ANSI 372
SIZE
ITEM # CTN/CS
3/4"
1"
1 1/4"
1 1/2"
2"
3/4"
1"
1 1/4"
1 1/2"
2"
41403
41404
41405
41406
51403
51404
51405
51406
-
2/20
2/20
2/20
2/20
2/20
2/20
2/20
2/20
-
ITEM #
CTN/CS
A
B
C
41403W
41404W
41405W
41406W
41407WHV
51403W
51404W
51405W
51406W
51407WHV
2/20
2/20
2/20
2/10
1/10
2/20
2/20
2/20
2/10
1/10
3/4
1
1 1/4
1 1/2
1 1/2
3/4
1
1 1/4
1 1/2
1 1/2
2 3/8
3 1/16
3 1/4
4
4
2 9/16
3 5/16
3 7/16
4 3/8
4 5/8
2 13/16
2 5/8
2 15/16
3 1/2
3 1/2
2 3/16
2 5/8
2 15/16
3 1/2
3 1/2
D (LEVER) D (WING)
3 7/8
4 11/16
4 11/16
5 5/8
3 7/8
4 11/16
4 11/16
5 5/8
-
4
4
5 3/4
5 3/4
5 3/4
4
4
5 3/4
5 3/4
5 3/4
E
F
FHV
G
GHV
H
I
7/16
7/16
7/16
7/16
7/16
7/16
7/16
7/16
7/16
7/16
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
-
5/8
5/8
5/8
5/8
5/8
5/8
5/8
5/8
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
-
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
AVAIL ABLE W/
Also available for High Velocity pumps - to order, add HV onto the end of the part #. HV models fit both Standard & High Velocity pumps.
THE ISOLATOR® W/ ROTATING FLANGE & MULTI-FUNCTION DRAIN
Full Port Forged Brass Uni-Flange Ball Valves w/ Detachable Rotating Flange,
Multi-Function Hi-Flow Hose Drain, Adjustable Packing Gland, Nuts & Bolts
ISO 9001
600 WOG
STANDARD BRASS LEAD-FREE BRASS
SWT
IPS
Cer tified to NSF/ANSI
61 & NSF/ANSI 372
SIZE
3/4"
1"
1 1/4"
1 1/2"
2"
3/4"
1"
1 1/4"
1 1/2"
2"
ITEM # CTN/CS
41413
41414
41415
41416
51413
51414
51415
51416
-
2/20
2/20
2/20
2/10
2/20
2/20
2/20
2/10
-
ITEM #
CTN/CS
41413W
41414W
41415W
41416W
41417WHV
51413W
51414W
51415W
51416W
51417WHV
2/20
2/20
2/10
2/10
1/10
2/20
2/20
2/10
2/10
1/10
A
B
3/4
2 3/4
1
2 15/16
1 1/4 3 5/16
1 1/2
4
1 1/2
4
3/4
3
1
3 1/4
1 1/4 3 1/2
1 1/2 4 3/8
1 1/2 4 11/16
C
D
E
F
FHV
G
GHV
H
I
J
2 1/4
2 5/8
2 7/8
3 3/8
3 1/8
2 1/4
2 5/8
2 7/8
3 3/8
3 1/8
2 1/2
2 1/2
3 3/16
3 13/16
3 3/8
2 1/2
2 1/2
3 3/16
3 13/16
3 3/8
7/16
7/16
7/16
7/16
7/16
7/16
7/16
7/16
7/16
7/16
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
-
5/8
5/8
5/8
5/8
5/8
5/8
5/8
5/8
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
-
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
1 1/2
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
2 3/4
2 3/4
3 1/4
3 1/2
3 3/8
2 3/4
2 3/4
3 1/4
3 1/2
3 3/8
AVAIL ABLE W/
Also available for High Velocity pumps - to order, add HV onto the end of the part #. HV models fit both Standard & High Velocity pumps.
THE ISOLATOR® CIRCULATOR PUMP INSTALLATION KIT
EVERYTHING
BUT THE PUMP!
LEAD-FREE BRASS
Cer tified to NSF/ANSI
61 & NSF/ANSI 372
IPS
1 ISOLATOR W/ ROTATING FLANGE
1 ISOLATOR W/ ROTATING FLANGE & DRAIN
2 FULL-FACED FLANGE GASKETS
2 SETS OF NUTS & BOLTS
& BONUS WING STYLE “T” HANDLE
STANDARD BRASS
SWT
AVAIL ABLE W/
SIZE
ITEM #
CTN/CS
ITEM #
CTN/CS
3/4"
1"
1 1/4"
3/4"
1"
1 1/4"
41413KIT
41414KIT
41415KIT
51413KIT
51414KIT
51415KIT
1/10
1/10
1/10
1/10
1/10
1/10
41413WKIT
41414WKIT
41415WKIT
51413WKIT
51414WKIT
51415WKIT
1/10
1/10
1/10
1/10
1/10
1/10
WEBSTONE ADVANTAGES
• 360° Rotation offers greater flexibility
• Snap ring provides greater control over installation
SNUG-FIT ROTATING FLANGE
• Inner & outer flanges are designed to help
prevent problems from over-torquing
• Twice the purging capabilities in a single component
MULTI-FUNCTION DRAIN - Purges Before or After Pump
SECTION REMOVED TO SHOW INTERNAL CONSTRUCTION
CHECK VALVE
The features and benefits you trust in our original
Isolator ® line PLUS a replaceable integral spring loaded
check valve. These valves are available in a variety
of configurations and features one of the largest flow
rates available anywhere.
• Unique uni-body design
• Heavy duty all brass construction
• Generously sized integral check
reduces impact on pump
• Easy removal of check feature
simplifies maintenance
• Replacement check
components available
• Guaranteed for life
THE ISOLATOR® W/ CHECK VALVE
NO.
C
4
6
8
9
FLANGE FOR HIGH
VELOCITY PUMP MODELS
FLANGE FOR
REGULAR MODELS
10
H
H
4
7
F
F
B
2
3
16
17
A
D
5
18
13
14
15
11
1
12
E
G
G
I
I
THE ISOLATOR® W/ CHECK VALVE
& ROTATING FLANGE
NO.
C
6
9
18
8
17
4
3 12
15
19 16
F
F
B
11
14
H
H
2
13
FLANGE FOR HIGH
VELOCITY PUMP MODELS
FLANGE FOR
REGULAR MODELS
10
5
7
6
A
D
20
1
E
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
G
G
I
I
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DESCRIPTION
MATERIAL
FLANGED BODY
SEATS
BALL
HANDLE NUT
LEVER HANDLE
HANDLE JACKET
PACKING GLAND
STEM SEAL
STEM
END CAP
CHECK VALVE BODY
O-RING – INNER SEAL
SPRING
POPPET
O-RING – OUTER SEAL
RETAINING RING
FLANGE BOLTS & NUTS
WING STYLE “T” HANDLE
BRASS
PTFE
BRASS HCP
BRASS
STEEL CP
VINYL
BRASS
PTFE
BRASS
BRASS
ABS
NBR
STAINLESS STEEL 316
ABS
ABS
STAINLESS STEEL 316
STEEL ZP
STEEL CP W/ VINYL GRIPS
DESCRIPTION
MATERIAL
FLANGED BODY
SEATS
BALL
HANDLE NUT
LEVER HANDLE
HANDLE JACKET
PACKING GLAND
STEM SEAL
STEM
END CAP
CHECK VALVE BODY
O-RING – INNER SEAL
SPRING
POPPET
O-RING – OUTER SEAL
RETAINING RING
FLANGE BOLTS & NUTS
WING STYLE “T” HANDLE
ROTATING FLANGE
FLANGE RING
BRASS
PTFE
BRASS HCP
BRASS
STEEL CP
VINYL
BRASS
PTFE
BRASS
BRASS
ABS
NBR
STAINLESS STEEL 316
ABS
ABS
STAINLESS STEEL 316
STEEL ZP
STEEL CP W/ VINYL GRIPS
BRASS
ABS
SWT
IPS
THE ISOLATOR® W/ CHECK VALVE
Full Port Forged Brass Uni-Flange Ball Valves w/ Replaceable Integral Spring Check,
Adjustable Packing Gland, Bonus Wing Style “T” Handle, Nuts & Bolts
SIZE
STANDARD BRASS
ITEM # CTN/CASE
3/4"
1"
1 1/4"
1 1/2"
3/4"
1"
1 1/4"
1 1/2"
42403
42404
42405
42406
52403
52404
52405
52406
1/10
1/10
1/10
1/10
1/10
1/10
1/10
1/10
ISO 9001
600 WOG – 150 PSI @ 200ºF
A
B
C
D
E
F
FHV
G
GHV
H
I
3/4
1
1 1/4
1 1/2
3/4
1
1 1/4
1 1/2
3 1/4
4 1/16
4 15/16
4 15/16
3 7/16
4 7/16
5 13/16
5 13/16
2 1/4
2 1/2
2 15/16
3 3/8
2 5/16
2 1/2
2 15/16
3 3/8
4
4 5/8
4 5/8
5 1/2
4
4 5/8
4 5/8
5 1/2
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
5/8
5/8
5/8
5/8
5/8
5/8
1
1 1/4
1 9/16
1 15/16
1
1 1/4
1 9/16
1 15/16
1 1/4
1 9/16
1 15/16
1 1/4
1 9/16
1 15/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
1" – 1 1/2" sizes also available for High Velocity pumps - to order, add HV onto the end of the part #.
HV models fit both Standard & High Velocity pumps.
SWT
IPS
THE ISOLATOR® W/ CHECK VALVE & ROTATING FLANGE
Full Port Forged Brass Uni-Flange Ball Valves w/ Replaceable Integral Spring Check & Detachable Rotating Flange,
ISO 9001
Adjustable Packing Gland, Bonus Wing Style “T” Handle, Nuts & Bolts
600 WOG – 150 PSI @ 200ºF
SIZE
STANDARD BRASS
ITEM # CTN/CASE
3/4"
1"
1 1/4"
1 1/2"
3/4"
1"
1 1/4"
1 1/2"
43403
43404
43405
43406
53403
53404
53405
53406
1/10
1/10
1/10
1/10
1/10
1/10
1/10
1/10
A
B
C
D
E
F
FHV
G
GHV
H
I
3/4
1
1 1/4
1 1/2
3/4
1
1 1/4
1 1/2
3 1/4
4 1/16
4 15/16
4 15/16
3 7/16
4 7/16
5 3/16
5 3/16
2 1/4
2 1/2
2 15/16
3 3/8
2 1/4
2 1/2
2 15/16
3 3/8
4
4 5/8
4 5/8
5 1/2
4
4 5/8
4 5/8
5 1/2
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
5/8
5/8
5/8
5/8
5/8
5/8
5/8
5/8
1
1 1/4
1 9/16
1 15/16
1
1 1/4
1 9/16
1 15/16
1
1 1/4
1 9/16
1 15/16
1
1 1/4
1 9/16
1 15/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
2 11/16
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
4 1/8
Also available for High Velocity pumps - to order, add HV onto the end of the part #. HV models fit both Standard & High Velocity pumps.
THE ISOLATOR CHECK VALVE ACCESSORIES
REPLACEMENT INTEGRAL CHECK
REPLACEMENT RETAINING RING
SIZE
STANDARD BRASS
ITEM #
CTN/CASE
SIZE
STANDARD BRASS
ITEM #
CTN/CASE
3/4"
1"
1 1/4"
1 1/2"
C42403
C42404
C42405
C42406
3/4"
1"
1 1/4"
1 1/2"
RR42403
RR42404
RR42405
RR42406
1/100
1/100
1/100
1/100
1/100
1/100
1/100
1/100
DOUBLE FLANGED CHECK VALVE
• Uni-body design reduces leak paths
• Adds a check valve to any pump
• Installs between the pump & isolator uni-flange ball valve
• Covers more installations with fewer skus
than the isolator w/ integral checks
• Inner & outer flanges are designed to help
prevent problems from over-torquing
• 360° Rotating flange with snap ring provides
greater control during installation
• Guaranteed for life
PATENTS PENDING
DOUBLE FLANGED CHECK VALVE
Double Flanged Check Forged Brass Check Valve w/ Rotating Flange End
Includes One Set of Mounting Bolts & Full-Faced Flange Gasket
SIZE
STANDARD BRASS
ITEM #
CTN/CASE
¾" thru 1 ¼"
1 ½” thru 2”
13703HV
13706HV
NO.
1
2
3
4
5
6
7
8
9
10
1/10
1/10
ISO 9001
150 PSI @ 200ºF
A
B
C
D
E
F
G
1 3/4
2 9/16
4 3/16
4 3/16
1 1/4
2
1 1/8
1 1/2
3/8
3/8
2 11/16
2 11/16
5/8
5/8
DESCRIPTION
MATERIAL
FLANGE BODY
CHECK VALVE BODY
O-RING INNER SEAL
SPRING
POPPET
O-RING OUTER SEAL
RETAINING RING
ROTATING FLANGE
ROTATING FLANGE RING
FLANGE NUT & BOLTS
BRASS
ABS
NBR
STAINLESS STEEL
ABS
NBR
STAINLESS STEEL
BRASS
STAINLESS STEEL
STEEL ZP
8
1
7
6
3
SNUG-FIT
ROTATING FLANGE
E
10
G
4
9
C
D
2
B
F
5
SECTION REMOVED TO SHOW INTERNAL CONSTRUCTION
A
THE ORIGINAL UNI-FLANGE BALL VALVE
NOW AVAILABLE FOR PRESS FIT INSTALLATION
• Compatible with popular press tools
• Available multi-function drain purges before or after pump
• Snug-fit rotating flange provides greater control during installation
• Guaranteed for life
PRESS ×
ROTATING FLANGE
PRO-CONNECT PRESS™ THE ISOLATOR® W/ ROTATING FLANGE
Full Port Forged Brass Uni-Flange Ball Valves w/ Detachable Rotating Flange,
Adjustable Packing Gland, Nuts & Bolts
SIZE
STANDARD BRASS
ITEM # CTN/CS
3/4"
1"
1 1/4"
1 1/2"
2"
81403HV
81404HV
81405HV
81406HV
81407HV
1/20
1/20
1/20
1/10
1/10
ISO 9001 • 250 CWP/250°F MAX
PATENTS PENDING
A
B
C
D
E
F
3/4
1
1 1/4
1 7/16
1 15/16
3 5/16
4
4 7/16
4 15/16
5 13/16
2 1/4
2 5/8
2 15/16
3 3/16
3 9/16
2 3/8
2 3/8
3 3/8
3 3/8
3 3/8
3/8
3/8
3/8
3/8
3/8
3 3/16
3 3/16
3 3/16
3 3/16
3 11/16
PRESS ×
ROTATING FLANGE
PRO-CONNECT PRESS™ THE ISOLATOR® W/ ROTATING FLANGE & MULTI-FUNCTION DRAIN
Full Port Forged Brass Uni-Flange Ball Valves w/ Detachable Rotating Flange,
ISO 9001 • 250 CWP/250°F MAX
Multi-Function Drain, Adjustable Packing Gland, Nuts & Bolts
PATENTED TECHNOLOGY
SIZE
STANDARD BRASS
ITEM # CTN/CS
3/4"
1"
1 1/4"
1 1/2"
2"
81413HV
81414HV
81415HV
81416HV
81417HV
1/20
1/20
1/10
1/10
1/10
A
B
C
D
E
F
G
H
3/4
1
1 1/4
1 7/16
1 15/16
3 11/16
3 7/8
4 7/16
5
5 13/16
2 1/4
2 5/8
2 15/16
3 3/16
3 9/16
2 3/8
2 3/8
3 3/8
3 3/8
3 3/8
3/8
3/8
3/8
3/8
3/8
3 3/16
3 3/16
3 3/16
3 3/16
3 11/16
1 9/16
1 9/16
1 3/4
1 3/4
1 3/4
2 3/4
2 13/16
3 5/16
3 1/2
3 3/4
16
19
7
22
G
13
8
15
4
14
25
F
H
3
11
18
D
1
5
17
2
24
6
C
9
A
10
12
23
20
E
B
21
NO.
DESCRIPTION
MATERIAL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
BODY
SEAT
STEM
STEM SEAL
BALL
END CAP
HANDLE
PACKING GLAND
DRAIN SEATS
DRAIN BALL
DRAIN STEM
DRAIN END CAP
DRAIN HANDLE
STEM SEAL
PACKING GLAND
HANDLE NUT
RETAINER
FLANGE
SCREW
GASKET
CAP
WASHER
STRAP
FLANGE BOLTS
HEX NUTS
BRASS
PTFE
BRASS
PTFE
BRASS
BRASS
PLATED STEEL
BRASS
PTFE
PLATED BRASS
BRASS
BRASS
EPOXY COATED ALUMINUM
PTFE
BRASS
STAINLESS STEEL
STAINLESS STEEL
BRASS
STAINLESS STEEL
EPDM
BRASS
STAINLESS STEEL
PVC
STAINLESS STEEL
STAINLESS STEEL
ONE APPIAN WAY WORCESTER, MA 01610
P.O. BOX 59 WORCESTER, MA 01613
P: (800) 225-9529 • F: (800) 336-5133
www.webstonevalves.com
This content has been provided for the express purpose of demonstrating a product’s function in a system and should not be used as a reference for designing or assembling any working
installation. The user is solely responsible for ensuring that all products are used and all systems are designed in accordance with all applicable federal, state and local codes.
The Isolator® is a trademark of Webstone Company, Inc. © 2014 Webstone Company Inc. FORM: ISO-0414