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CF8 Gear Operated Butterfly Valve , PN6 Ss 304 Butterfly Valve Paper Making Use
CF8 Gear Operated Butterfly Valve , PN6 Ss 304 Butterfly Valve Paper Making Use
CF8 Gear Operated Butterfly Valve , PN6 Ss 304 Butterfly Valve Paper Making Use
CF8 Gear Operated Butterfly Valve , PN6 Ss 304 Butterfly Valve Paper Making Use
Specifications
Brand Name :
YFM
Model Number :
D371F
Certification :
CE,SIL
Place of Origin :
WENZHOU
MOQ :
1PC
Price :
90USD/PC
Payment Terms :
L/C, T/T, D/P
Supply Ability :
220000PCS/YEAR
Delivery Time :
3 WORK DAYS
Packaging Details :
PLYWOOD CASE
Material :
WCB+PTFE
Standard :
ANSI,DIN,GB
MEDIUM :
ACID
Temperature of media :
Normal Temperature
Media :
Water,Oil,Gas,Acid
Port size :
3/4''-24'
product name :
PFA Lined Butterfly Valve
Description

PTFE Full Lined CF8 SS304 Body Butterfly Valve for Paper Making

Technical Specification

Design and Manufacture Standard: ASME B16.34, HG/T 3704

Face-to-face Dimension: ASME B16.10 , GB/T 12221

Flange Standard: ASME B 16.5 ,GB/T 9119 ,DIN ,JIS

Inspection and Testing: API 598, GB/T 13927

Product Specification
Body Material: WCB, ASTM A395 , CF8 ,CF8M

Lining Material: PTFE , PFA , PO ,FEP, EPDM

Nominal Diameter: 2"-80"(DN50~DN2000)

Pressure Range: Class150 , PN6 , PN10 , PN16

Connection Type: Flange ,Wafer , Lug Connection

Operation Method: Manual ,Worn gear ,Electric ,Pneumatic actuator

Primary and Secondary Shaft Sealing
The primary seal is formed by the flexible, spherically molded liner, sealing against the matching spherically machined disc hub when compressed by the resilient elastomer backup liner. The PFA liner as well as the PFA shaft over-molding extends into the valve body itself. Tight compression is maintained at the hub area and around the shaft by the resilient back-up liner combined with the flexible PFA liner, forming an independent secondary seal.
Upstream/Downstream Sealing
The dense PFA body liner is flexible, and allows the resilient elastomer back-up liner to compress the spherically molded PFA liner into the spherically machined shaft-disc with enough force to create a tight seal. This is in contrast to PTFE liners which are usually thick sinterings resulting in a stiff liner unable to give tight shut-off over a long period of time. The wide elastomer backup liner in the rests in a machined body
groove which is essential in providing tight shutoff for end of line service at full pressure. This has enabled the valve to be used for pump and
vessel isolation as well as other difficult services.
Safety Sealing
A third seal is provided by a graphite filled PTFE safety seal, which provides force against the junction of the PFA liner and PFA over-molded shaft. This seal is constantly energized by a coil spring, and self compensates for temperature changes and wear.
Flange Sealing
Provided by compression of the liner between the valve body and the flanges. An elastomer o-ring, fitted underneath the PFA liner, allows
proper flange sealing with warped flange faces or in vacuum applications.
CF8 Gear Operated Butterfly Valve , PN6 Ss 304 Butterfly Valve Paper Making Use

CF8 Gear Operated Butterfly Valve , PN6 Ss 304 Butterfly Valve Paper Making Use

CF8 Gear Operated Butterfly Valve , PN6 Ss 304 Butterfly Valve Paper Making Use

CF8 Gear Operated Butterfly Valve , PN6 Ss 304 Butterfly Valve Paper Making Use

Product tags

working of butterfly valve

,

pneumatic control valve pdf

,

penstock valve
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CF8 Gear Operated Butterfly Valve , PN6 Ss 304 Butterfly Valve Paper Making Use

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Product Detail
Brand Name :
YFM
Model Number :
D371F
Certification :
CE,SIL
Place of Origin :
WENZHOU
MOQ :
1PC
Price :
90USD/PC
Contact Supplier
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CF8 Gear Operated Butterfly Valve , PN6 Ss 304 Butterfly Valve Paper Making Use
CF8 Gear Operated Butterfly Valve , PN6 Ss 304 Butterfly Valve Paper Making Use

Zhejiang Youfumi Valve Co., Ltd.

Active Member
3 Years
zhejiang, wenzhou
Since 1989
Business Type :
Manufacturer
Main Products :
PFA Lined Ball Valve, PFA Lined Plug Valve, PFA Lined Check Valve
Total Annual :
100000000-150000000
Employee Number :
500~700
Certification Level :
Active Member
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