This series of products are reliable sealing performance, maintenance-free for 20 years, loading and unloading can be achieved at any time, reliable sealing performance, with path has a large flow characteristics, and can be installed in heat transfer machine room, heat the main line, branch piping, heat exchangers and other equipment supporting or device is connected, use for cut off, the main use of urban heat, city gas, city water supply and drainage lines.

(1)shell Hydrostatic Test

(2)Seal  Hydrostatic Test

     The pressure should be more 1.1times than working pressure by seal hydrastatic test 

(3)Seal Air Test

     Seal air leakage test is based on 80PSIG(6kgf/cm2)nin-actiue gas of full lilled with  air, after clase zhe valve.then check it is leakage or not by one side of zhe valve

Size:full port&standard diameter DN20-150(3/4"-6") 

Pressure:below 2.5Mpa

Temperature:-40℃~+200℃

Medium:water,gas,oil,solid particle,mixed medium etc.(Non-corrosive)

Operation:manual/with gear/electrical/worm gear/pneumatic/hydraulic

Advantage:

   International certificate and standard

   Design for water,oil and gas pipe line use

   As long life as pipeline system

   Maintenance free, low cost

   Two-way valve

main characteristics:

One-piece welded body & End piece connection pipe (Connection dimension to ASTM / EN / KS / JIS / GOST

Standard .etc will be available.

Bubble tight excellent sealing with PTFE+C seats.

Pre-loaded seat springs ensure leak-tight at low pressure and reduce valve operational torque.

Anti blow-out stem.

Double O-rings ensure the stem sealing and are replaceable.

Stem dry bearing, metal with PTFE coating having self-lubricating capabilities