The double-layer insulated plug valve utilizes the pressure balancing valve to demonstrate all the integrity advantages of the valve and can provide real bubble level double insulation through a single valve body.
Due to the safety of the oil and gas industry standards have been improved, especially the need to engineers working in valve downstream or upstream industry, so the real double insulation has become a major requirement.

Real double insulation also has another advantage (when the first cock provide really insulation), can use the built-in type discharge point to check when there are many kinds of medium pipeline through pollution will not occur.
In addition, the discharge selection is provided for selection.

The DIPGV series is compact, and most valves have the same face-to-face dimensions as a single valve, so you can usually replace a single valve without modifying the piping system.
Comply with API 6FA fire safety standards, apply to erosion application surface hardening options and other specifications applicable to NACE acidic services.
Structural characteristics of

The DIGPV valve is based on a widely recognized pressure balancing cock valve
The two cocks have large metal seating for metal seating
Real bubble level insulation is provided through a single valve body
Face to face sizes are interchangeable with single valves in most cases
Anti-abrasion surface hardening
Compact design with gate and ball valves

Standard requirement

Design and manufacturing: API 6D pipeline valve
Structure length: API 6D "pipeline valve"
Connection flange: ASME B16.5 "pipe flange and flange fittings"
Welding terminal: ASME B16.25 "butt welding terminal"
Test and test standards: API 598 valve inspection and test

Design and manufacturing: API 6D pipeline valve
Structure length: API 6D "pipeline valve"
Connection flange: ASME B16.5 "pipe flange and flange fittings"
Welding terminal: ASME B16.25 "butt welding terminal"
Test and test standards: API 598 valve inspection and test
-- compressor isolation
- pump isolation
- scale isolation
- isolation of water or gas injection systems
Important to outside exhaust, drainage and ventilation

The characteristics of
The ground type metal has an anti-corrosive effect on the metal overlapping seat to ensure close closure
The valve seat is fully protected when the valve is opened
Dynamic balance can prevent pressure imbalance above or below the cocks
Pressure increases stem packing
Ball bearings ensure smooth running and more precise seating adjustment
Ball bearings ensure smooth running and more precise seating adjustment

Tyco PB/PG is a pressure balancing cock that provides a "close shut" function for global oil and gas markets.
The dimensions range from 1/2 to 36, using a variety of terminals, rated pressure ANSI 125 to 2500 and API 6A (up to 5000).

The valve body and the inside of the valve can be widely selected (from standard carbon steel to stainless steel) to ensure that the valve is suitable for most applications, including the NACE - MR - 01-75 acid service.
PB/PG series can be emergency stem packing into the exhaust valve rod sealing to ensure that the air around, at the same time can also inject cock sealing material in order to also can be completely sealed pipe when the seat damage.

PB/PG series is solid, with large metal seating advantages for the metal seat, which can be fully protected when the valve is in the open position.
PB/PG series valves combine this feature with the surface hardening choice of welded parts to become an ideal valve for strong erosion and corrosive application environments for onshore and offshore oil and gas exploration and production.
All valves comply with API 6FA fire safety standards and API 6D, API 599, ANSI B. 16.34 and API 6A requirements.
PB/PG series is a very suitable Angle stroke valve for electric solutions。
Structural characteristics of
PB/PG series pressure balancing cock
Large area metal seal to metal seat
Tightly closed
Comply with API 6FA fire safety standard
Anti-abrasion surface hardening
Emergency stem sealing device