Unflanged Sanitary Tri-Clamp® Envelope Gaskets - PTFE w/ FKM Filler
Unflanged PTFE Envelope Gaskets with FKM Filler provide you with the chemical versatility of a PTFE gasket but the memory and temperature ratings 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 which have a totally bonded construction that provides an exceptionally pure and incredibly flexible seal.
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 65°F and 85°F
- 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)
- Color Code: one white dot, one yellow dot • •
- -30°F to 400°F Temperature Range
- Available Flanged or Unflanged
- Inert chemical characteristics of PTFE
- Memory of FKM
| 1 = Excellent 2 = Good 3 = Acceptable 4 = Marginal 5 = Poor 6 = Do Not Use | ||||||||
|---|---|---|---|---|---|---|---|---|
| Material | Cont. Steam | Inter. Steam | Pure Water Ambient | Pure Water Hot | Process Fluids Ambient | Process Fluids Hot | Process Fluid Variables 0°-100°C | Temperature Range |
| Tuf-Steel® | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -350°-550°F |
| Tuf-Flex® | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -20°-300°F |
| Food-Flex® | 1 | 1 | 1 | 1 | 1 | 1 | 1 | -30°-250°F |
| PTFE | 1 | 1 | 1 | 1 | 1 | 1 | 3 | -100° to 500°F |
| Silicone (platinum) | 2 | 2 | 2 | 2 | 2 | 2 | 1 | -40°-450°F |
| Silicone (peroxide) | 2 | 2 | 2 | 2 | 2 | 2 | 1 | -40°-450°F |
| FKM | 3 | 2 | 2 | 2 | 2 | 2 | 2 | -30°-400°F |
| EPDM (peroxide) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | -30°-300°F |
| Buna | 0 | 0 | 5 | 5 | 5 | 5 | 5 | -30°-200°F |
Tri-Clamp® Envelope Gasket Sizing | |||
| Size | Inside Diameter | Outer Diameter | Bead Diameter |
|---|---|---|---|
| 1" | 0.90" (22.86mm) | 1.99" (50.55mm) | 1.72" (43.69mm) |
| 1-1/2" | 1.40" (35.56mm) | 1.99" (50.55mm) | 1.72" (43.69mm) |
| 2" | 1.90" (48.26mm) | 2.50" (63.50mm) | 2.22" (56.39mm) |
| 2-1/2" | 2.40" (60.96mm) | 3.03" (76.96mm) | 2.78" (70.61mm) |
| 3" | 2.90" (73.66mm) | 3.55" (90.17mm) | 3.28" (83.31mm) |
| 4" | 3.87" (98.30mm) | 4.68" (118.87mm) | 4.34" (110.24mm) |
| 6" | 5.82" (147.83mm) | 6.67" (169.42mm) | 6.16" (156.46mm) |
| 8" | 7.78" (197.62mm) | 8.67" (220.22mm) | 8.16" (207.26mm) |
| 10" | 9.77" (248.16mm) | 10.66" (270.76mm) | 10.14" (257.56mm) |
| 12" | 11.73" (297.94mm) | 12.66" (321.56mm) | 12.5" (317.50mm) |