Low Torque AV Gaskets

Standard Features
• EPDM – durometer A, hardness 65 - 68
• PTFE or PVDF-bonded EPDM for maximum
corrosion resistance
• Perfect sealing at low bolt tightening torque
ratings, longer gasket life
• Ideal for plastic piping systems, as well as metal
or plastic-lined metal systems

• Working temperature:
1) EPDM: - 40 – 195º F
2) PTFE-bonded: - 40 – 250º F
3) PVDF-bonded: - 40 – 250º F
• Approx. a 1/3 bolt tightening torque rating as
compared with flat or envelope type gasket.
• Thickness of bonded materials
PTFE: All Sizes: 0.016" (0.4mm)
PVDF: Sizes 1/2" - 2": 0.016" (0.4mm)
PVDF: Sizes 3" - 10": 0.020" (0.5mm)
• PTFE-bonded gasket excellent for most
corrosive chemicals.
• PVDF-bonded gasket is ideal for the following:
1] Semi-conductor industry, because of its purity
2] Aggressive chemicals (strong acids,
bases, halogens, etc.)
3] Media that generates any volatile gas (PVDF
gas permeation is only 1/50 of PTFE)
• Both the PTFE and PVDF-bonded gaskets
employ a proprietary laminating process for
bonding to EPDM, providing the greater
elasticity required for lower sealing torques.
Low Torque AV Gaskets
Materials/Sizes:
Sample Specification
All AV Gaskets shall be of low torque, full face to ANSI
B16.5 dimensions and shall have two concentric,
convex, molded rings between center hole and bolt hole
circle in EPDM, PTFE-bonded EPDM or PVDF-bonded
EPDM, as manufactured by Asahi/America, Inc.