Brand: Rubberfab Color: Black Material: PTFE w/ FKM Filler Style: Tri-Clamp Temperature Rating: -20F to 300F Type: Type III (Envelope Gaskets)

Unflanged PTFE Envelope Gaskets with FKM Filler provides you with the chemical versatility of a PTFE gasket but the memory of the FKM elastomer. This construction will prevent product contamination, service interruptions, and clean-up costs with running solely elastomer seals. It will also serve you better than standard PTFE Gaskets where slight misalignment of ferrules is observed. While the envelope construction does initially inhibit the creep, cold flow and leaks seen with solely PTFE gaskets, overtime those factors will appear with envelope gaskets as well. For the ultimate solution to these problems, we recommend these gaskets, which have a totally bonded construction that provides an exceptionally pure and incredibly flexible seal.

SOLD INDIVIDUALLY

Storing PTFE w/ FKM Filler Envelope Gaskets:

• Shelf Life: 10 Years from cure date
• Store in original packaging in clean and dry warehouse
• Do not expose to direct sunlight
• Keep more than 6′ away from electric motors
• Maintain temperature between 65F and 85F

PTFE / FKM Envelope Gasket Standards Compliance:

• FDA CFR 21, 177.1550 / FDA CFR 21, 177.2600
• U.S. Pharmacopeia Class VI Certification
• ADI Free (Animal Derived Ingredient Free)
• Current Good Manufacturing Practices (CGMP)

PTFE / FKM Tri-Clamp Envelope Gasket Features:

• Color Code: one white dot, one yellow dot
• -30F to 400F Temperature Range
• Available Flanged or Unflanged
• Inert chemical characteristics of PTFE
• Memory of FKM

1 = Excellent2 = Good3 = Acceptable
4 = Marginal5 = Poor6 = Do Not Use Continuous
Stream Intermittent
Steam Pure
Water
Ambient Pure
Water
Hot Process
Fluids
Ambient Process
Fluids
Hot Process
Fluid Variables
0-100C Temperature
Range Tuf-Steel 1 1 1 1 1 1 1 -350-550F Tuf-Flex 1 1 1 1 1 1 1 -20-300F Food-Flex 1 1 1 1 1 1 1 -30-250F PTFE 1 1 1 1 1 1 3 -100 to 500F Silicone
(platinum) 2 2 2 2 2 2 1 -40-450F Silicone
(peroxide) 2 2 2 2 2 2 1 -40-450F FKM 3 2 2 2 2 2 2 -30-400F EPDM
(peroxide) 3 3 3 3 3 3 3 -30-300F Buna 0 0 5 5 5 5 5 -30-200F