Stainless steel ASTM A321 TP316L 2" 150# Plug Global Valve 10000 PSI H Series Flanged Plug Valve

Main features: Body-bonnet joint is self tightening pressure seal type with reliable sealing function even though the temperature and pressure is fluctuated. Pressure seal bonnet type is preferentially used for high pressure and high temperature valves.

Design standard:API 600 ASME B16.34

Product range:

1. Pressure range:CLASS 900Lb~2500Lb

2. Nominal diameter:NPS 2~30″

3. Body material:Carbon steel, Stainless steel, duplex stainless steel, Alloy steel, Nickel alloy

4. End connection:RF RTJ BW

5. Mode of operation:Hand wheel, Gear box, Electric, Pneumatic, hydraulic device, Pneumatic-hydraulic device；

Product features:

1. Small flow resistance for fluid, only a small force is required when opening/closing;

2. No limitation on the flowing direction of medium；

3. When valve is full opened, the sealing surface suffered small friction from the working medium；

4. Stem extended design can be chosen

5. Pressure seal bonnet

6. Solid wedge can be chosen;

7. Spring loaded packing can be chosen;

8. Low emission packing can be chosen according to ISO 15848 requirement;

9. With By-pass design be chosen；

Plug Valve Type and Use:

1. Lubricated Plug Valve

As the name suggests, a lubricated valve uses a lubricant usually made up of a base oil and viscosity improver (like amorphous or fumed silica) that is injected under pressure between the plug face and body seat to reduce friction and seal ports. Valve manufacturers generally recommend lubricant suitable for the process fluid, and the valves often must be resealed after only a few cycles, and in some cases, after every cycle. Considered a high maintenance plug valve, they are often used in applications that have infrequent operations. Lubricated plug valves perform well in processes that utilize fluids which carry mildly abrasive particles such as dirty upstream applications, gas pipeline systems that need bypass valves, and as blow-down valves on valve stations and kicker valves.

2. Non-Lubricated Plug Valve

This plug valve utilizes a tapered or cone-shape that acts as a wedge and presses a polymeric sleeve against the body cavity. The use of the sleeve reduces friction between the plug mechanism and body. Non-lubricated plug valves are often used instead of lubricated ones in applications where maintenance needs to be kept to a minimum, such special services in sulphur, hydrogen fluoride, or where liquids could be trapped or solidify and potentially jam the valve. However, non-lubricated plug valves are limited by temperature and chemical compatibility of the non-metallic materials they are made of.

The three main types of non-lubricated plug valves are:

• Lift-type plug valve
• Elastomer sleeved plug valve
• Fully lined plug valve