Project Description

Plug Valve

Camtech Pressure Balanced Lubricated Plug valves robust in construction and easy In-Line maintainability. These valves are used where existing pulsating or static high pressures are present. These valves are suitable for medium that are used in various industries such as petroleum, chemical industry, pharmacy, chemical fertilizer, electric power industry etc. under nominal pressure of Class 150-2500 Lbs and working temperature of –29~180°C.
Uniqueness of dynamically and pressure balanced design together with inverted plug design, assure prevention of locking, which has been the problems of conventional design at higher pressure application. Pressure Balance Lubricated Plug valves are manufactured using a wide range of materials to suit the service applications.
The benefit of dynamic pressure balance plug valve offers is that it ensures equalized pressure between the plug and upper and lower body chamber. Pressure is balance by the two holes in the plug which connects the plug port to upper and lower chamber. The hole in the upper end is provided with a check valve so that the pressure is always equal to the larger chamber and always equal to or greater than the line pressure in the small chamber. Few silent features are indicated as below,

Valves are with Double Block and bleed feature.
Easy inline maintenance.
In the event of the plug lock-up, it is possible to inject lubricant to the valve in service.
Leak tightness of the operating system.
Assured stem tightness by means of gasket and packing between the stem and the body.
Fire Safe
Double injector for lubrication can be provided on request.
Hardfaced seating faces resist erosion.
Low emission packing set available for special service.
Drain and Vent are provided as standard features.

Specification Details
Design Standard API 6D / API 599
Pressure/Temperature Chart ASME B16.34
Face to face Dimension API 6D / ASME B16.10
Testing Standard API 6D / API 598
Flange Details ASME B16.5 UP TO 24”

ASME B16.47 ABOVE 24”

Size Range 2” – 36” (DN50 – DN900)
ASME Class 150 – 2500
Materials WCB / LCB / LCC / CF8M / CF8 /
CF3M
Trims F6a / F316 / F304 / F316L / F51 /
Seats Metallic
Ends Flanged / Butt-weld End

Camtech Sleeved Plug valves are robust in construction and easy In-Line maintainability. These valves are non-lubricated quarter-turn valves that achieve sealing through the use of a compressible sleeve as a sealing member. In many applications they operate virtually maintenance free for decades. Sleeved plug valves are used for on/off and throttling service in demanding process applications with media temperatures ranging from -20°F to 600°F. These valves are used in various industries such as petroleum, chemical industry, pharmacy, chemical fertilizer, electric power industry etc.
These valves are Bi-directional flow, simple actuation, lightweight, compact design, and multiport configurations, all facilitate for improved system design. The inert PTFE sleeve completely surrounds the plug. The sleeve provides a large, circumferential sealing surface from port to port. Open, closed, or rotating, the seal is assured. As the plug rotates, the 360° port lips provide a self-cleaning action to remove scaling and adhering media. Few silent features are indicated as below,

Bi-directional in-line bubble-tight seal independent of line pressure
Multiple external bubble-tight seals independent of line pressure.
Direct mechanical three-point adjustment independent of line pressure
Independent travel stops
Full encapsulation and retention of all leading edges of PTFE sleeve and top seal components.
Full lip at port openings protects PTFE sleeve.
Contoured waterway ensures minimum flow turbulence characteristic.
No body cavities to entrap flow media.
Positive flow direction indication

Specification Details
Design Standard API 6D / API 599
Pressure/Temperature Chart ASME B16.34
Face to face Dimension API 6D / ASME B16.10
Testing Standard API 6D / API 598
Flange Details ASME B16.5 UP TO 24”
Size Range 2” – 16” (DN50 – DN400)
ASME Class 150 – 300
Materials WCB / LCB / LCC / CF8M / CF8 /
CF3M
Trims F6a / F316 / F304 / F316L / F51 /
Seats Metallic
Ends Flanged / Butt-weld End