01
Stainless Steel Teflon Seat Lug Butterfly Valve Suppliers & Factory in China for Waterworks DN50-DN900
Features
- Bubble-tight shut-off at full pressure rating.
- The seat and the disc are the only two valve parts in contact with the medium.
- Superior design for abrasive and erosive media.
- Replaceable cartridge seat: The replaceable seat consists of a reinforced back-up ring, on which the elastomer seat material is vulcanized. When mounting the valve between the pipe flanges this stable seat cannot be deformed or displaced. The cartridge design also prevents deformation when the valve is cycled, such as stretching and bending of the elastomer in front of the moving disc.
- Large number of material combinations available.
- Standardized actuator flange for easy operator interchangeability.
- Top bushing absorbs side thrust loads.
- Hub seal provided by preloaded contact between flatted seat surface and disc hub area for positive sealing at all disc positions.
- One-piece wafer thin disc stem gives the very minimum obstruction to flow.
- Field replaceable seat isolates the body and stem from the flow.
- Molded-in O-rings provides flange sealing and eliminates need for gaskets.
- Universal Mounting Flange: The cast-in actuator flange is universally designed in accordance with ISO 5211 standard dimensions. The mounting flange can accommodate all types of operators such as: 10-position handle kits, gear operators, electric actuators, and pneumatic actuators.
Materials Of Main Parts
| ITEM | PART NAME | MATERIAL |
|---|---|---|
| 1 | Body Material | Cast iron/Ductile iron/CF8/CF8M/WCB/Duplex/Al-Bronze Aluminium Etc. |
| 2 | Seat Material | EPDM/NBR/Buna/Viton/PTFE/Hypalon/Silicone/Neoprene Etc. |
| 3 | Stem Material | 45#/SS420/SS410/SS416/SS316/SS304/Duplex stainless steel Etc. |
| 4 | Disc Material | DI+Ni,CF8,CF8M, CF3M,Duplex SS,Al-Bronze,DI+Nylon, DI+PTFE, DI Epoxy Etc. |
| 5 | Hand Lever | Malleable iron/Stamping steel/Aluminum/Stainless Steel |
| 6 | Bushing | PTFE/Bronze |
| 7 | O Ring | NBR/EPDM/VITON |
Valve Standard
| Category | Details |
|---|---|
| Type | Lugged |
| Face to Face | API609, EN593,EN558-1 Series 20, /DIN3202 K1, ISO5752 |
| Flange Drilling | EN1092 PN6/PN10/PN16/JIS 5K/10K/ANSI150/AS Table D/E/SANS |
| Mounting Flange | ISO5211 |
| Pressure rating | PN10 PN16 150PSI 200PSI Class 150 |
| Application | HVAC, Water Supply & Sewage, Food & Beverage, Chemical/petrochemical processing, Power and Utilities, Paper and Pulp, Marine |
Dimensions:(mm)
Company Profile
Tianjin Guoji Valve Co., Ltd. is an export-oriented valve manufacturer with 15,332 square meter factory area, which has strong capability of R&D, Manufacture, Trading and Service. Now our company has passed the Lloyd's Register (LR) ISO9001: 2015 quality management system certification (ISO Approval number: ISO 9001 – 00033059) and CE/PED certification (EU Certificate Of Conformity). (Certificate No: 0343/PED/SHA/BJG00001668/A).
TGV's products covered Butterfly valves, Check valves, Strainers, Gate valves, Ball valves, Globe valves, Expansion joints, Flanges and Fittings with pressure range from 0.5 to 6.4 MPa, size from DN15 to DN3000. The products also have been widely exported to more than 30 countries and regions.
We aim at deliver only quality valves with professional services, we see quality and service as life and always take our reputation and promises seriously.
Frequently Asked Questions
What are the primary features of the Lug Butterfly Valve?
The valve features bubble-tight shut-off at full pressure rating, a replaceable cartridge seat design that prevents deformation during cycling, a top bushing to absorb side thrust loads, and a standardized ISO 5211 actuator flange for easy operator interchangeability.
What materials are available for the valve seat and body?
The body is available in Cast Iron, Ductile Iron, CF8, CF8M, WCB, Duplex, and Al-Bronze Aluminium, among others. The seat material options include EPDM, NBR, Buna, Viton, PTFE, Hypalon, Silicone, and Neoprene.
What standards does this butterfly valve conform to?
The valve conforms to standard Face-to-Face dimensions including API609, EN593, EN558-1 Series 20, DIN3202 K1, and ISO5752. Flange drilling is compatible with EN1092 PN6/PN10/PN16, JIS 5K/10K, ANSI150, AS Table D/E, and SANS.
Which industries and applications is this valve suitable for?
It is widely applied in HVAC, Water Supply & Sewage, Food & Beverage, Chemical/petrochemical processing, Power and Utilities, Paper and Pulp, and Marine industries.
What quality certifications does Tianjin Guoji Valve Co., Ltd. hold?
Tianjin Guoji Valve Co., Ltd. (TGV) has passed the Lloyd's Register (LR) ISO9001:2015 quality management system certification (Approval number: ISO 9001 - 00033059) and holds CE/PED certification (EU Certificate Of Conformity No: 0343/PED/SHA/BJG00001668/A).