FEP/PFA LINED BALL VALVE


DESCRIPTIONMATERIAL OF CONSTRUCTION
BodyDuctile Cast Iron ASTM-A-395 or A-216-WCB or SS
Ball/StemLining FEP : D-2116 Type – III, PFA : D-3307 Type II
Seat RingVirgin PTFE, D-1457
Gland PackingVirgin PTFE, D-1457
Gland PusherMS/SS/ASTM-A-216-WCB
FastenersSS-304
Hand LeverMS/SS

Note: End flanges are drilled to individual specification like BS, ASA, DIN, or JIS.

* All size products in single piece construction.
* All Dimensions are in millimetre.

Superior resistance for chemicals
All surfaces of valve wet parts are lined with PFA/FEP to protect valve service life from chemical corrosion.

Lining with high durability

Injection molded PFA lining is free from pinholes, cracks, swelling, and locally uneven thickness, and prevents
service problems with exfoliation, stress cracking and fluid permeation.

Thermal resistance

PFA’s thermal stability no harmful additive or pigment, and remains chemically inactive, and thus there is no
concern of organic extraction or elution of metallic ions.

Prevention of thermal shock and mechanical impact

Compared with FEP, PFA’s high viscoelasticity provides far better properties such as tensile strength,
elongation and bending elasticity even under a higher temperature range.

Ease in valve operation

PFA’s paraffin molecular structure provides extremely smooth surface of lined wet parts to minimize
valve operating torque.

Minimized valve operation cost

Damage caused by corrosion or wear is almost nil with PAF lining to extend valve service life, reducing
its operation cost

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