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China Metal Seat Triple Eccentric Butterfly Valve Suppliers - High Temperature Application, Factory Direct, DN50-DN1200
⚙️ Features
✓Bubble-tight shut-off at full pressure rating.
✓At the slightest rotary motion, the seal is lifted off the body seat, which means that there is no transition from static to dynamic friction between the seat and plug.
✓Standardized actuator flange for easy operator interchangeability.
✓The control and shut-off butterfly valve can be used for both directions of flow.
✓Hub seal provided by preloaded contact between flatted seat surface and disc hub area for positive sealing at all disc positions.
✓Specially engineered seat sealing system adds to longer service life and lower operating torque.
✓The valves have an extraordinarily long service life since they open and close almost without friction and mechanical initial breakaway torque.
✓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: gear operators, electric actuators, and pneumatic actuators.
✓The beveled conical seat geometry prevents friction, and thus wear and tear, when the valve is opened or closed. The initial breakaway torques are minimized. The large facing allows strictest leakage requirements to be met.
🔩 Materials Of Main Parts
ITEM |
PART NAME |
MATERIAL |
1 |
Body Material |
CF8/CF8M/CF3M/WCB Etc. |
2 |
Seat Material |
(SS304+Graphite/PTFE/SS316+Ghaphite/SS304) Etc. |
3 |
Stem Material |
SS420/SS410/SS416/SS316/SS304/Duplex stainless steel Etc. |
4 |
Disc Material |
WCB,CF8,CF8M, CF3M,Duplex SS,Al-Bronze, Etc. |
5 |
Gear Box |
Ductile iron/WCB |
6 |
Packing |
Graphite |
📋 Valve Standard
Category |
Details |
Type |
Triple Eccentric Flanged |
Face to Face |
BS5155, EN558-1 Series 13, ISO5752 Series 13 Series 14 |
Flange Drilling |
EN1092 PN10/PN16/PN25/PN40/PN63/JIS10K/ANSI150/ANSI 300 |
Mounting Flange |
ISO5211 |
Pressure rating |
PN10 PN16 PN25 PN40 PN63 150PSI 200PSI Class 150 Class 300 Class 600 |
Application |
HVAC, Water Supply & Sewage, Food & Beverage, Chemical/petrochemical processing, Power and Utilities, Paper and Pulp, Marine |
📐 Dimensions (mm)
🔍 More Details
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.
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
Q1What is a triple eccentric butterfly valve and how does it work?
A triple eccentric butterfly valve uses three geometric offsets — the shaft offset from the disc centerline, the shaft offset from the bore centerline, and the cone-axis tilt from the pipe axis — to ensure the disc lifts completely free of the seat the moment it begins to open. This eliminates all friction between the disc and seat, achieving bubble-tight shut-off at full pressure rating with significantly lower breakaway torque compared to standard butterfly valves.
Q2What pressure ratings are available for these butterfly valves?
These valves are available in a comprehensive range of pressure classes: PN10, PN16, PN25, PN40, PN63, 150 PSI, 200 PSI, Class 150, Class 300, and Class 600 — covering both low and high-pressure industrial requirements across international standards.
Q3What material options are available for the body, seat, stem, and disc?
Body options include CF8, CF8M, CF3M, and WCB. Seat materials cover SS304+Graphite, PTFE, SS316+Graphite, and SS304. Stems are offered in SS420, SS410, SS416, SS316, SS304, and Duplex stainless steel. Disc options include WCB, CF8, CF8M, CF3M, Duplex SS, and Al-Bronze — enabling precise configuration for a wide range of process media and operating temperatures.
Q4What industries and applications are these valves designed for?
Triple eccentric butterfly valves are widely used in HVAC systems, water supply and sewage treatment, food and beverage processing, chemical and petrochemical plants, power generation and utilities, paper and pulp manufacturing, and marine applications. Their bidirectional flow capability and friction-free sealing design make them ideal for demanding service conditions.
Q5Can these valves be fitted with electric, pneumatic, or gear actuators?
Yes. The cast-in actuator mounting flange is manufactured to ISO 5211 standard dimensions, providing universal compatibility with gear operators, electric actuators, and pneumatic actuators. This standardized interface simplifies installation and allows easy operator replacement or upgrades in the field without modifying the valve body.
Q6What international standards and certifications do these valves comply with?
Face-to-face dimensions comply with BS5155, EN558-1 Series 13, and ISO5752 Series 13 & 14. Flange drilling follows EN1092, and the actuator flange conforms to ISO5211. Tianjin Guoji Valve Co., Ltd. holds Lloyd's Register ISO 9001:2015 quality management certification and CE/PED certification (EU Certificate of Conformity), ensuring every product meets rigorous international quality and safety requirements.