Tri-Clamp® Orifice Plate Gaskets - Buna
Note: Buna Orifice Plates ship with a 1/8" center bored plate finished to 15 µ-in Ra as standard, but we are happy to accommodate special requests for hole boring (concentric or eccentric), electropolishing, metal detectable elastomers, and custom cut patterns. Click
Buna Tri-Clamp® Gaskets are specified by many process equipment manufacturers and are generally suitable for these applications, however service life must be considered and a preventative maintenance program must be in place to mitigate degradation. Buna Gaskets have excellent resistance to petroleum based fluids, making them the economical choice for seals in engines and equipment where petroleum based oils, lubricants, and fuels are present. Chemically, Buna is resistant to many hydrocarbons, fats, oils, greases, hydraulic fluids, and chemicals. Never use Buna Tri-Clamp® Gaskets for Ozone (except PVC blends), ketones, esters, aldehydes, chlorinated hydrocarbons, or nitro hydrocarbons.
Storing Buna 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, 177.2600
- USDA Hazard Analysis and Critical Control Points
- USDA and 3-A Sanitary Standards
- ASME-BPE Standards for Type I and Type II
- Current Good Manufacturing Practices (CGMP)
- Color Code: one red dot •
- -20°F to 250°F Temperature Range
- Not recommended for strong acids and ozone
- Many standard drill bore sizes available
- Self Draining
- Reduce Flow
- Balance Backflow
- Equalize Backpressure
- Prevent Dead Legs
- Increase Line Pressure
- Increase Fluid Velocity
- 10 µ-in Ra Electropolished Plate
- Concentric or Eccentric Hole Boring
- Custom Cut Patterns
- Metal Detectable Elastomers
- Engraved Tabs
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® Gasket Sizing | |||
Size | Inside Diameter | Outer Diameter | Bead Diameter |
---|---|---|---|
1/2" | 0.40" (10.2mm) | 0.87" (22mm) | n/a |
3/4" | 0.64" (16.2mm) | 0.87" (22mm) | n/a |
1" | 0.90" (22.9mm) | 2.00" (50.5mm) | 1.71" (43.5mm) |
1-1/2" | 1.39" (35.3mm) | 2.00" (50.5mm) | 1.71" (43.5mm) |
2" | 1.88" (47.8mm) | 2.52" (64mm) | 2.22" (56.5mm) |
2-1/2" | 2.39" (60.5mm) | 3.05" (77.5mm) | 2.78" (70.5mm) |
3" | 2.88" (73.1mm) | 3.58" (91mm) | 3.29" (83.5mm) |
4" | 3.85" (97.7mm) | 4.67" (119mm) | 4.33" (110mm) |
5" | 4.86" (123.5mm) | 5.68" (144.2mm) | 5.29" (134.3mm) |
6" | 5.80" (147.2mm) | 6.57" (167mm) | 6.16" (156.5mm) |
8" | 7.80" (198mm) | 8.56" (217.4mm) | 8.15" (207mm) |
10" | 9.74" (247.4mm) | 10.55" (268mm) | 10.12" (257mm) |
12" | 11.74" (298.2mm) | 12.56" (319mm) | 12.17" (309mm) |