Shut-off ball valves

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Shut-off ball valves
BAll VALVES
DN 2˝… 56˝ Class 150...900
Application
Performing shut-off function at pipelines transporting
- water,
- oil, oil products & synthetic oil,
- natural gas,
and other liquid and gaseous mediums at the
temperature up to +180°С.
Extended temperature range up to +250°С is available
upon Customer’s request.
Design standard: API 6D, GOST.
Fire-Safe Design: API 607, API 6FA.
Tightness: complete tightness (zero leakage).
Materials: CS, LTCS, SS upon Customer’s request.
Connection: RF, RTJ, BW.
Installation: aboveground, underground.
Operation: manual, gear, electric actuator, pneumatic
actuator, gas-over-oil actuator or electric-hydraulic
actuator.
Service life: 30 years.
BAll VALVES
DN 2˝… 56˝ Class 150...900
Design Features
1. Side-entry design.
Pressure relief
ball valve
Grease
fittings
2. Body design: fully welded, split body (twopiece, three-piece).
3. Bore: full bore.
4. Ball mounting: trunnion mounted, floating.
5. Anti blow-out stem.
6. Ball valves are equipped with vent and
drain, grease fittings, sealant injection
lines, pressure relief valves and position
indicators.
7. Antistatic design.
Ball
Vent & Drain
BAll VALVES
Seat Designs
Seat design depends on DBB or DIB ball valve type.
Soft ring
TCC coating
Primary:
metal-to-metal contact,
secondary:
soft seated
Metal-to-metal seated
(tungsten carbide coating)
BAll VALVES
DIB ball valves
Double Isolation & Bleed (DIB) valve
O-rings with dual sealing are in constant contact with the valve,
that ensures zero leakage both on input and output of ball valve.
Medium pressure presses the O-ring against the ball.
Metal bearing surfaces of seats made of antifriction resistant material meet pressure load on the seat.
Gas
Gas
BAll VALVES
DBB ball valves
Double Block & Bleed (DBB)
valve design facilitates complete flush, drain and venting of the valve body cavity.
Pressure relief system which is engaged when the line working pressure exceeds
the specified threshold eliminates the possibility of valve locking and damage
during the medium warming inside the valve.
Oil, oil products
Oil, oil products
Pressure discharge