Size:full port&standard diameterDN50-150(2"-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 Material: Body: carbon steel ST37,A106-B,STPG 370,A105,ASTM A516-60,A216-WCB. 304 or 316 stainless(depend on customer) Ball: 304 or 316 stainless Stem:PTFE+25% carbon fiber