Gaskets
Gaskets for clamp fittings
BS4825 Pt.3, US-3A, ASME BPE
Gaskets – Type 1 Standard ½" & ¾"
| Size (Tube O.D.) |
A mm |
B mm |
| ½" |
21.8 |
9.9 |
| ¾" |
21.8 |
16.3 |
Gaskets – Type 1 Standard 1" – 8"
| Size (Tube O.D.) |
A mm |
B mm |
| 1" |
50.0 |
22.7 |
| 1½" |
50.0 |
35.9 |
| 2" |
63.5 |
48.6 |
| 2½" |
76.2 |
61.3 |
| 3" |
88.9 |
74.0 |
| 4" |
118.0 |
98.6 |
| 6" |
165.0 |
147.8 |
| 8" |
216.0 |
196.6 |
Gaskets – Type 2 flanged 1” – 12”
| Size (Tube O.D.) |
A mm |
B mm |
| 1” |
52.7 |
22.8 |
| 52.7 |
35.8 |
- |
| 2” |
66.2 |
48.8 |
| 79.7 |
60.5 |
- |
| 3” |
93.2 |
73.1 |
| 121.2 |
97.8 |
- |
| 6” |
169.1 |
148.0 |
| 220.0 |
199.0 |
- |
| 10” |
270.7 |
249.0 |
| 321.5 |
300.0 |
- |
Special Gaskets
Smart Gaskets
We also offer the Smart Gasket line of specialty gaskets for use with Smart Clamps. These Gaskets install between two standard sanitary flanges and allow the use of sensors (thermocouples) and spore traps (details on application).
Screen Gaskets
Fluid conditioning gaskets are available in a wide variety of meshes and materials (reference chart available on application)
Orifice plates
Orifice gaskets are available in many materials (details on application)
Clamp gasket material properties
| Property |
EPDM |
Teflon |
BUNA-N |
Viton |
Silicone |
| 40MP-E |
40MP-G |
40MP-U |
40MP-V |
40MP-X |
| Temperature range |
-55°F - 275°F |
-40°F - 450°F |
-40°F - 225°F |
-20°F - 400°F |
-80°F - 450°F |
| Acid Resistance |
Good-Excellent |
Excellent |
Good |
Good |
Good |
| Alkali Resistance |
Good-Excellent |
Excellent |
Fair-Good |
Poor-Good |
Poor-Fair |
| Petroleum Oil Resistance |
Poor |
Excellent |
Excellent |
Excellent |
Good |
| Vegetable Oil Resistance |
Good |
Excellent |
Good |
Excellent |
Good |
| Abrasion Resistance |
Good-Excellent |
Excellent |
Good |
Good |
Good-Excellent |
| Compression Set |
Fair |
Cold Flows |
Good |
Good-Excellent |
Good-Excellent |
Available gasket material
Buna - N (black or white)
- Least expensive elastomer gasket
- Nitrile compound is very elastic making
- For a leak proof connection
- Good chemical resistance for use with petroleum solvents, alcohol etc
- 3A qualified
- Meets 21CFR 177.2600
- Useful temperature range from
- (-40°F to 225°F) or (-40°C to 107°C)
Teflon (PTFE)
- Commonly used for food and pharmaceutical applications
- Excellent chemical resistance
- Not suitable for great temperature fluctuations,
- Teflon tends to cold flow and will not return to its original shape.
- 3A qualified
- Meets 21CFR 177.2600
- Passes cytotoxicity testing
- Pharmaceutical Class VI approved
- Useful temperature range from (-110°F to 400°F) or (-79°C to 204°C )
Silicone (Platinum cured)
- 3A qualified
- Meets 21CFR 177.2600
- Passes cytotoxicity testing
- Pharmaceutical Class VI approved
- Useful temperature range from (-20°F to 450°F) or (-29°C to 232°C)
Silicone (peroxide cured)
- 3A qualified
- Meets 21CFR 177.2600
- Passes cytotoxicity testing
- Pharmaceutical Class VI approved
- Useful temperature range from (-20°F to 450°F) or (-29°C to 232°C)
Viton (flourel)
- 3A qualified
- Meets 21CFR 177.2600
- Passes cytotoxicity testing
- Pharmaceutical Class VI approved
- Useful temperature range from (-20°F to 450°F) or (-29°C to 232°C)
EPDM
- 3A qualified
- Meets 21CFR 177.2600
- Passes cytotoxicity testing
- Pharmaceutical Class VI approved
- Useful temperature range from (-55°F to 275°F) or (-48°C to 135°C)
TEF Steel
- Does not cold flow (creep), retains shape and seal properties
- Excellent chemical resistance
- Steam resistance
- Minimal thermal expansion
- Teflon & PM316L
- 3A qualified
- Meets 21CFR 177.2600
- Passes cytotoxicity testing
- Pharmaceutical Class VI approved
- Useful temperature range from (-110°F to 400°F) or (-79°C to 204°C)
FDA and USP Class IV Certification available on request.
