Product Overview:
Extended stem flange butterfly valve adopts integral flange connection, customized long valve stem to elevate actuator away from pipeline, specially designed for buried valve chamber, insulated heating pipeline, trench and narrow installation space. The disc rotates 90° for pipeline shut-off and flow regulation.
Body Material: Ductile Iron, WCB Carbon Steel, SS304/SS316.
Seal Option: EPDM/NBR/PTFE soft seal, metal hard seal for high temperature service.
Pressure: PN10/PN16/PN25, Class150/300.
Size Range: DN50-DN2000.
Custom Stem Length: 100mm~2000mm.
Actuator: Worm Gear, Handwheel, Electric, Pneumatic, Explosion-proof Electric.
Application: Municipal water supply, sewage, district heating buried pipeline, chemical underground process pipeline, power plant circulating water system.

Specifications:
Operation type:Electric
Size: DN50-DN2200
Pressure: PN10/16, Class150,JIS6K/10K
Face to Face Standard: API609,BS5155,DIN3202,ISO5752
Flange Standard:DIN,BS,ISO,ANSI,AS,JIS
Mounting Flange:ISO5211
Materials:
Body : Cast Iron
Disc: CF8
Seal : EPDM
Stem : SS416
No. | Part Name | Material |
1 | Body | Cast Iron/Carbon Steel/Stainless Steel/Al-Bronze |
2 | Disc | Cast Iron/Stainless Steel/Al-Bronze |
3 | Seat | EPDM/PEFE/Buna/NBR/Hypalon/Viton |
4 | Stem | WCB/SS416/SS410 |
5 | Bushing | PTFE/Lubricating |
6 | O ring | EPDM/PEFE/Buna/NBR/Hypalon |
Characteristic:
Applicable Medium: Water, Oil, Gas
Applicable Temperature:-20~120℃
Nominal Pressure (Mpa) | 1.0 | 1.6 |
Nominal Diameter(mm) | 40-600 | 40-600 |
Test Pressure (Mpa) | Shell | 1.5 | 2.4 |
Seal | 1.1 | 1.76 |
Applicable Temperature | -20-120℃ |
Applicable Medium | Water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids, etc. |
Operating Type | Manual, Worm Gear, Pneumatic, Electric, etc. |
All valves are equipped with professional export protective packaging.
With protective caps on the sealing surfaces, rust-proof treatment, and shock-absorbing material filling to ensure intact transport; the loading is secure and safe.
We can also customize packaging according to customer requirements.
Regarding transportation methods, we can provide appropriate transportation options based on the cargo requirements and the customer's timeliness requirements.
Common transportation methods include: sea freight, air freight, land freight, and express delivery.
