DN80 PTFE Liner Double Stem CF8 Wafer Butterfly Valve
Basic Info of PTFE Liner Butterfly Valve
- The material selection of stainless steel wafer butterfly valve in accordance with relevant standards, and refuses to cut corners.
- Standard structure,Thick casting,Quick and light opening and closing, convenient maintenance.
- Strong corrosion resistance: The PTFE liner butterfly valve is not easily eroded by corrosive media such as acids and alkalis, so it can maintain the service life of the valve body.
- Application fields: PTFE liner butterfly valve is not only suitable for liquid media, but also suitable for fluid control in various working conditions such as gas and steam.
- Good stability: PTFE lining can fix the internal rubber and prevent it from deforming during use.
- PFA (polytetrafluoroethylene copolymer) has excellent chemical and heat resistance, making it suitable for spraying in harsh environments. This coating remains stable at high temperatures and has good wear and corrosion resistance.
- Double stem PTFE liner butterfly valve: Allow more medium traffic to pass, reduce flow resistance and reduce pressure drop.
- polished stainless steel disc: Stainless steel valve plate polishing can not only improve the gloss and beauty of the surface, but also enhance the corrosion resistance and wear resistance of stainless steel. It can also reduce pollution caused by stainless steel surface corrosion.
PTFE Liner Wafer Butterfly Valve Parts
| Parts | Ductile Iron type | WCB type | Stainless Steel Type | Duplex Stainless Steel Type |
|---|---|---|---|---|
| Body | Cast Iron(GG25) Ductile Iron(GGG40/50) |
A216 A217 A105(forged) |
SS304/ CF8 SS316/CF8M SS304L/CF3 SS316L/CF3M |
2205 2507 1.4529 |
| Disc | Ductile Iron with Ni coated Ductile Iron with nylon coated Ductile Iron with PTFE/EPDM lined Stainless Steel Duplex Stainless Steel Bronze |
SS304/ CF8 SS316/CF8M SS304L/CF3 SS316L/CF3M 2205 2507 1.4529 |
2205 2507 1.4529 |
|
| Seat | NBR, EPDM, PTFE, Viton, Hypalon, Silicon, PFA | |||
| Stem | SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel | Duplex Stainless Steel, Monel | ||
| Actuator | Hand Lever, Worm Gear, Electric, Pneumatic | |||
PTFE Liner Wafer Butterfly Valve Standards
| ITEM | Standard |
| Design | EN593 | API609 |
| Face to Face | EN558 | ISO5752 | API608 | BS5155-4 |
| Top Flange | ISO5211 |
| Flange Drilling | PN6 | PN10 | PN16 | ASME B16.5 CL150 | JIS 10K |
| Pressure Rating | PN6 | PN10 | PN16 | PN25 | CL150 | JIS 10K |
| Tightness Test | ISO5208 | API598 | EN12266-1 |
Paraments of PTFE Liner Butterfly Valve
DN50-DN200
| SIZE | ∅D | øK | n-∅d0 | øD1 | d | L | L1 | H | H1 | H2 | W |
| DN50 | 53 | 120.7 | 4-∅19 | 76.3 | 45 | 43 | 46 | 25 | 140 | 64 | 170 |
| DN65 | 64.5 | 139.7 | 4-ø19 | 94 | 59.4 | 45.6 | 49 | 25 | 143 | 80 | 170 |
| DN100 | 104 | 190.5 | 4-∅19 | 135 | 97 | 52.1 | 56 | 25 | 170 | 96.7 | 215 |
| DN125 | 123.2 | 215.9 | 4-∅22.4 | 166 | 117 | 56 | 60 | 25 | 190 | 117 | 215 |
| DN150 | 156 | 241.3 | 4-∅22.4 | 188.4 | 146.3 | 56 | 60 | 25 | 210 | 137 | 215 |
| DN200 | 202 | 298.5 | 4-ø22.4 | 238.2 | 193.7 | 60 | 64 | 35 | 235 | 168 | 265 |
DN80
| SIZE | ∅D | øK | n-∅d0 | øD1 | d | L | L1 | H | H1 | H2 | W |
| DN80 | 77.3 | 152.4 | 4-∅19 | 103.9 | 78 | 45.2 | 49.3 | 25 | 155 | 94.4 | 170 |
Manufacture Process of Butterfly Valve
Certificates of ZFA VALVE
WRAS
CE
ISO 9001
EAC Russia
