不锈钢蝶阀是由橡胶密封蝶阀和碳钢或不锈钢阀板、阀杆构成,适用于温度≤80~120℃如食品、医药、化工、石油、电力、轻纺、造纸等给排水、气体管道上作调节流量和截流介质的作用。
Note: Seat materials are capable of withstanding lower temperatures without damage. However, the elastomer becomes hard and torques increase. Some flow media may further restrict the published temperature limits and/or significantly reduce seat life.
Options
Seats: Buna-N, EPDM, Hypalon, Viton, Neoprene, PTFE.
Disc: Nickel plated Ductile iron, nylon coated ductile Iron,aluminum bronze, 316 stainless steel.
Body: Cast iron, ductile iron.
Note: Please refer to “Numbering System” sheet to obtain detailed figure numbers.
Caution: All 2000 series valves must be installed in the partial open position. Installing in the full closed position may damage the seat during start up and void any warrantees.
Valves meet MSS-SP67 & API 609
Flange drilling to: ANSI B16.1 Class 125/150
Testing to: API 598
Test Pressures |
Shell: 300 psi |
Seat: 220 psi |
Materials
No. |
Part Name |
Specifications |
1 |
Body |
SS316 |
2 |
Bushing(Long) |
PTFE |
3 |
Seat |
VITON |
4 |
Disc |
SS316 |
5 |
STEM |
SS316 |
6 |
PIN |
SS316 |
7 |
Bushing(Short) |
PTFE |
8 |
“O” Ring |
VITON |
Temperature range of seats
Material |
Range |
Buna-N |
-12ºC~+93ºC |
EPDM |
-30ºC~+140ºC |
Neoprene |
-7ºC~+107ºC |
Hypalon |
-18ºC~+149ºC |
Viton |
-12ºC~+140ºC |
PTFE |
-20ºC~+121ºC |