ZFV Pneumatic Ball Valve DN80 PN16 Flange ends stainless steel delivered to client . .
Below technical data for reference :
Nominal size DN80,pressure rate PN16, connecting type flanged end, the pipe flange as per GOST 33259-2015, floating ball construct. It’s a kind of on-off ball valve, main part material is austenic stainless steel: body ASTM A351 CF8, ball ASTM A182 F316, stem ASTM A182 F316, seats material PTFE, the valve leakage class is GOST 9544 - A, valve operated by single action pneumatic actuator, with manual override, the actuator failure position is closed ( normally closed valve ). With solenoid valve, with air-filter. With air-pipe and fittings. The valve can be installed in low ambient temperature.
The ball valve flange drilling is according to GOST 33259-2015, the every ball valve tested and inspected by hydro / water for shell and high pressure seat sealing, and air test for low pressure seat sealing.
For this this stainless steel ball valve , we do not apply painting since client do not have special requirement.
The solenoid valve model and air-filter is used for client’s detail request . the bracket installed to top of actuator by NAMUR standard, so that client can install limit switch more convenient .
The floating ball valve was tested, no visual leakage found during hydro testing and air testing, meet requirement of GOST 9544-A class. dimemsions checking and function checking result is ok .
The detail value of testing pressure as below :
1.5 times by PN which is 2.4Mpa by hydrostatic ( water ) for shell testing.
1.1 times by PN which is 1.76Mpa by hydrostatic ( water ) for high pressure closure testing.
0.6Mpa by air testing for for low pressure closure testing.
ZFV ( Zhejiang zhengfeng valve co., ltd ) produce various kind of materials ball valves with different operated way include manual operated, pneumatic operated, electric operated etc, to meet different requirements of customer over the world.
Zhejiang Zhengfeng Valve Co., Ltd