01. AB711 series has handle, half closed, there's leakage at the joint of handle and protection cover while valve disc is lifting, not applicable for poisonous, harmful, flammable and explosive medium; AQ701 series has no handle, fully closed
02. Inlet female thread, outlet female thread
03. It has adjusting rings, can adjust return pressure
04. Spring low lift, valve disc value lift d0/40~d0/20(d0 is throat diameter)
05. Applicable pressure:0.06~4.0MPa(see for more details on page 11 Safety Valve's Setting Pressure Level)
06. Setting pressure deviation:≤5bar ±0.15bar
>5~23bar 3%×setting pressure
>23~40bar ±0.7bar
07. Return pressure:85~90%setting pressure
08. Must be installed vertically, otherwise valve spool will return to the seat abnormally
09. Applicable temp.: cast iron normally Ⅳc:-15~200℃, specially Ⅲc:-15~150℃
carbon steel normally Ⅳa:-29~200℃, specially Ⅴa:-29~300℃, Ⅲa:-29~150℃
stainless steel Ⅳb:-40~200℃, specially Ⅴb:-40~300℃, Ⅲb:-40~150℃
10. Valve body material: cast iron(code:C), cast steel WCB(code:C), SS304(code:B), SS316(code:R), SS316L(code:L)
11. Valve disc sealing material: normally metal sealing---hard alloy(code:Y), alloy steel(code:H), body material(code:W),
specially soft sealing---PTFE(PTFE, code:P)