ASTM A351 CF8 Butterfly Valve, API 609, 6 Inch, 150 LB

Double Flange CF8 Gearbox Operated Butterfly Valve

Design Standard: API 609
Body Material: ASTM A351 CF8
Nominal Diameter: 6 Inch, DN150
Pressure: Class 150 LB, PN20
End Connection: Double Flange Type End, RF
Face To Face: API 609
Test And Inspection: API 598
Connection: Double Flange
Seal: Soft Sealed
Work Pressure: High Pressure (Pn<10 Mpa)
Material of Seal Surface: Soft Sealed
Application: Industrial Usage, Water Industrial Usage, Household Usage
Driving Mode: Worm Gear
Structure: Double Eccentric, Double Offset
Valve Stem: Normal
Working Temperature: Low Temperature (T<150℃)
Valve Body: Casting
Feature: Gearbox operated butterfly valve

Product Range

Size: 2 - 64 Inch, DN50-DN1600
Body: Carbon Steel, Stainless Steel
Disc: Carbon Steel, Stainless Steel, Monel
Shaft: Stainless Steel, Monel
Seat: PTFE, RPTFE, PPL
Operator: Worm Gear, Electric Actuator, Pneumatic Actuator

Uses of product

This product's working temperature is -35℃-150℃ and suitable for throttling or shutting off the flow of corrosive or incorrosive gases, liquids, semiliquids, semiliquids and solid powder, and can be installed in and selected position in pipelines or on vessels in the industries of petroleum processing, chemicals, food, medicine, textile, paper making, hydroelectricity engineering, Shipbuilding, water supply and sewage, metallurgy, energy engineering as well as light industry, etc.

The Design of Triple Offset Butterfly Valve



The centerline of Seal Surface
 
1. Seal with elastic metal steel in the interlayer enables the valve to have zero leakage performance.
2. The friction-free design of right-angle rotation is realized by a unique triple offset design. There is no friction between the seat and seal ring when the valve opens from 0 to 90 degrees, which eliminates the possibility of wear and leakage and prolongs the service life of the valve.
3. Torque seal can meet the requirement of two-way zero leakage in the long-term operation of the valve. The switch life of the valve allows five hundred thousand times.
4. An all-metal structure with zero leakage performance makes the valve has essential fire safety characteristics.
5. The butterfly valve adopts a precision casting process, including the body and the disk. This process has many advantages compared to the steel plate coiling process, the most important of which is that the overall strength of the valve is high, and the cost of it is also higher than that of the coiling process.
6. The external blow-out-proof stem is safe and reliable and complies with the requirements of API 609.