Pneumatic PFA Lined Plug Valve DIN Standard Casting material With Light Torque
Brand Name:YFM
Certification:CE,SIL
Model Number:X41F46
Minimum Order Quantity:1PC
Delivery Time:15WORK DAYS
Place of Origin:WENZHOU
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Wenzhou Zhejiang China
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NO.1-1Qianjie Street High-tech Zone Longwan District Wenzhou City Zhejiang Province China
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Product Details
PFA Lined DIN Standard Light Torque Pneumatic Actuator Plug Valve for Aqua Regia
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, FEP
Nominal Diameter: 1/2"-14"(DN15~DN350)
Pressure Range: Class150 , Class300 , PN10 , PN16
Operation Method: Manual , Worn gear ,Electric ,Pneumatic actuator
PFA Lined DIN Standard Light Torque Pneumatic Actuator Plug Valve for Aqua Regia
Double-D plug stem accepts most standard actuation equipment.
Grounding spring To avoid build-up of static electricity.
Inline adjustment Stops thru-line leakage.
ISO 5211 Mounting Pad Universal flange for easy actuation mounting.
Anti-Rotation Lugs Help to eliminate stress on fasteners during
actuation.
Raised Lip Prevents cold flow outward.
Solid Encapsulated PFA Molded Plug
All plug inserts have anchor holes to ensure a strong adhesion of
the plug PFA liner material even under extreme cycling conditions.
Large Ports Offer good Cv values Reduced frictional losses &
pressure drop.
T-Slots in Critical Areas to Lock Liner Against Body Wall Advantage
will be a tight and perfect fit of the liner and an additional
support during
vacuum service.
Standard Lockable Wrenches Allows valve to be locking in open or
closed position.
Dynamic, Self-adjusting, Self Energizing PFA or TFM reverse lip
diaphragm.
Compare lining methods
There are two ways to line valves, molding and forming. The lining
method depends upon the lining material used.
PFA is melt processible. This means that it can be precisely molded
to the valve body and locked into place. Locking is
accomplished by molding the lining into dovetail recesses or
grooves in the valve body. The locking resists liner collapse.
PTFE. Because of the limitations involved in conforming PTFE to the
shape of the valve passage way, it is more vulnerable to
failure. PTFE is not melt processible. It does not become molten at
elevated temperatures. Consequently, it cannot be molded
in the same way as PFA. As a valve liner, PTFE is limited to the
blow-molding method. With blow-molding, PTFE cannot be
“locked” into the valve body. PTFE is susceptible to separation
from the valve body in several ways including blow-out, collapse,
and creep.
Compare porosity
In PTFE, microscopic pores are present due to imperfect particle
fusion during processing. To compensate for PTFE’s greater
porosity, thicker linings must be applied. Because of PTFE’s
greater lining thickness, the lining is less flexible and sealing
is less
reliable. More flexible, less porous PFA linings assure better
sealing. Picture proof. The scanning electron microscope
fractographs above illustrate the difference in valve lining
materials. PFA at 10,000X PTFE. In the photo at the left above,
PTFE
is magnified just 2,000 times. The PTFE microscopic fissures are
large enough to easily allow a wide variety of media to
migrate through to the base metal. PFA In the photo at the right
above, PFA is enlarged to 10,000X. This is five times greater
magnification than the PTFE, yet no fissures are visible.
Pneumatic PFA Lined Plug Valve DIN Standard Casting material With Light Torque
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