About Pressure-Relief Valves
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About Noise, Filtration, and Flow Ratings
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Expansion Plugs with Bypass
Use the bypass tube on these plugs to add air, water, and other fluid to your pipeline or to relieve pressure while testing. The seal expands to temporarily close off pipe openings. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
For Styles A-E and H-L, twist the wing nut to expand the seal.
Styles A and B have an NPS threaded bypass for routing moderately pressurized fluids.
Styles C and D have an NPT threaded bypass for making leak-tight connections.
Styles E and F have a barbed bypass for quick connections to tubing.
For Styles F and G, twist the easy-grip T-handle to expand the seal.
Style H have a bypass with BSPP threads, also known as G threads, for making leak-tight connections.
Styles G, J, and K have a Schrader valve bypass. An internal spring holds the valve shut until you depress the pin, giving you control over air flow.
Style L have a GHT bypass that connects to standard garden hoses. Ideal for pipe cleanout, they allow for easy, controlled drainage.
For Pipe | Max. Back Pressure | Material | Bypass | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal | Bypass Cap | Hose Size | Pipe Size | Thread Type | Thread Size | Gender | For Tube ID | Tube Connection Type | Each | |
Style A | ||||||||||||||||
Aluminum Stem | ||||||||||||||||
| 1 1/2 | 1.53"-2.25" | 125 | 288 | 8 1/4" | -20° to 170° | Natural Rubber | Metal | __ | 3/8 | NPS | __ | Male | __ | __ | 0000000 | 000000 |
| 2 | 1.79"-2.38" | 125 | 288 | 8 1/4" | -20° to 170° | Natural Rubber | Metal | __ | 3/8 | NPS | __ | Male | __ | __ | 0000000 | 00000 |
| 3 | 2.77"-3.25" | 125 | 288 | 8 1/4" | -20° to 170° | Natural Rubber | Metal | __ | 3/8 | NPS | __ | Male | __ | __ | 0000000 | 00000 |
| 4 | 3.85"-4.25" | 35 | 81 | 8 1/4" | -20° to 170° | Natural Rubber | Metal | __ | 1/2 | NPS | __ | Male | __ | __ | 0000000 | 00000 |
Style B | ||||||||||||||||
Steel Stem | ||||||||||||||||
| 6 | 5.80"-6.50" | 20 | 46 | 12" | 35° to 210° | Natural Rubber | Metal | __ | 1/2 | NPS | __ | Male | __ | __ | 0000000 | 000000 |
Style C | ||||||||||||||||
Iron Stem | ||||||||||||||||
| 1/2 | 0.47"-0.50" | Not Rated | 46 | 4 1/4" | 30° to 150° | Natural Rubber | Metal | __ | 1/16 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 3/4 | 0.72"-0.75" | Not Rated | 46 | 5 1/8" | 30° to 150° | Natural Rubber | Metal | __ | 1/8 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 1 | 0.97"-1.00" | Not Rated | 46 | 5" | 30° to 150° | Natural Rubber | Metal | __ | 1/4 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 2 | 1.75"-2.00" | Not Rated | 34 | 10 3/8" | 30° to 150° | Natural Rubber | Metal | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 3 | 2.75"-3.00" | Not Rated | 34 | 10 1/2" | 30° to 150° | Natural Rubber | Metal | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 4 | 3.63"-4.00" | Not Rated | 23 | 10 1/8" | 30° to 150° | Natural Rubber | Metal | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 5 | 4.50"-5.00" | Not Rated | 23 | 12 5/8" | 30° to 150° | Natural Rubber | Metal | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 6 | 5.50"-6.00" | Not Rated | 23 | 12 1/2" | 30° to 150° | Natural Rubber | Metal | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 8 | 7.50"-8.00" | Not Rated | 4 | 14 3/4" | 30° to 150° | Natural Rubber | Metal | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 000000 |
| 10 | 9.50"-10.00" | Not Rated | 4 | 14 7/8" | 30° to 150° | Natural Rubber | Metal | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 000000 |
| 12 | 11.50"-12.00" | Not Rated | 4 | 14 5/8" | 30° to 150° | Natural Rubber | Metal | __ | 1 | NPT | __ | Male | __ | __ | 0000000 | 000000 |
Style D | ||||||||||||||||
Plastic Stem | ||||||||||||||||
| 1 1/2 | 1.42"-1.93" | 50 | 115 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 2 | 1.93"-2.36" | 40 | 92 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 2 1/2 | 2.40"-2.76" | 30 | 69 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 3 | 2.87"-3.31" | 15 | 34 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 4 | 3.54"-4.25" | 15 | 34 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 5 | 4.72"-5.37" | 12 | 27 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 6 | 5.50"-6.29" | 10 | 23 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
Style E | ||||||||||||||||
Stainless Steel Stem | ||||||||||||||||
| 1/2 | 0.48"-0.53" | 10 | 24 | 3 1/2" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 5/8 | 0.60"-0.67" | 10 | 24 | 3 1/2" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 3/4 | 0.72"-0.79" | 10 | 24 | 3 1/2" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 7/8 | 0.81"-0.89" | 10 | 24 | 3 1/2" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
Style F | ||||||||||||||||
Stainless Steel Stem | ||||||||||||||||
| 1 | 0.94"-1.03" | 10 | 24 | 4" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 1 1/8 | 1.06"-1.17" | 5 | 12 | 4" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 1 1/4 | 1.21"-1.33" | 5 | 12 | 4" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| __ | 1.32"-1.45" | 5 | 12 | 4" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 1 1/2 | 1.44"-1.58" | 5 | 12 | 4" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 1 3/4 | 1.70"-1.87" | 5 | 12 | 4" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 2 | 1.92"-2.14" | 5 | 12 | 4" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
Style G | ||||||||||||||||
Steel Stem | ||||||||||||||||
| 1 | 0.94"-1.03" | 10 | 23 | 3 3/4" | -40° to 210° | Neoprene Rubber | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 00000000 | 000000 |
| 1 1/2 | 1.44"-1.58" | 10 | 23 | 4" | -40° to 210° | Neoprene Rubber | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 00000000 | 000000 |
| 2 1/2 | 2.44"-2.71" | 5 | 12 | 4 15/16" | -40° to 210° | Neoprene Rubber | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 00000000 | 000000 |
Style H | ||||||||||||||||
Plastic Stem | ||||||||||||||||
| 1/2 | 0.49"-0.60" | 100 | 231 | 2 15/16" | -40° to 180° | Natural Rubber | Plastic | __ | 1/8 | BSPP | __ | Male | __ | __ | 0000000 | 00000 |
| 3/4 | 0.74"-0.90" | 100 | 231 | 2 15/16" | -40° to 180° | Natural Rubber | Plastic | __ | 1/8 | BSPP | __ | Male | __ | __ | 0000000 | 00000 |
| 1 | 0.98"-1.20" | 100 | 231 | 2 15/16" | -40° to 180° | Natural Rubber | Plastic | __ | 1/8 | BSPP | __ | Male | __ | __ | 0000000 | 00000 |
| 1 1/4 | 1.23"-1.45" | 50 | 115 | 2 15/16" | -40° to 180° | Natural Rubber | Plastic | __ | 1/8 | BSPP | __ | Male | __ | __ | 0000000 | 00000 |
Style J | ||||||||||||||||
Steel Stem | ||||||||||||||||
| 3/4 | 0.72"-0.79" | 10 | 23 | 3 7/16" | -40° to 210° | Neoprene Rubber | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 00000000 | 000000 |
| 7/8 | 0.81"-0.89" | 10 | 23 | 3 5/8" | -40° to 210° | Neoprene Rubber | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 00000000 | 000000 |
Style K | ||||||||||||||||
Plastic Stem | ||||||||||||||||
| 1 1/2 | 1.50"-1.71" | 40 | 92 | 3 3/4" | Not Rated | PVC Plastic | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 0000000 | 00000 |
| 2 | 1.86"-2.06" | 30 | 69 | 3 3/4" | Not Rated | PVC Plastic | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 0000000 | 00000 |
| 3 | 2.84"-3.09" | 20 | 46 | 3 3/4" | Not Rated | PVC Plastic | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 0000000 | 00000 |
| 4 | 3.89"-4.15" | 10 | 23 | 3 3/4" | Not Rated | PVC Plastic | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 0000000 | 00000 |
Style L | ||||||||||||||||
Plastic Stem | ||||||||||||||||
| 1 1/2 | 1.50"-1.71" | 40 | 92 | 3 3/4" | Not Rated | PVC Plastic | Plastic | 3/4 | __ | GHT | __ | Male | __ | __ | 0000000 | 0000 |
| 2 | 1.86"-2.06" | 30 | 69 | 3 3/4" | Not Rated | PVC Plastic | Plastic | 3/4 | __ | GHT | __ | Male | __ | __ | 0000000 | 0000 |
| 3 | 2.84"-3.09" | 20 | 46 | 3 3/4" | Not Rated | PVC Plastic | Plastic | 3/4 | __ | GHT | __ | Male | __ | __ | 0000000 | 0000 |
| 4 | 3.89"-4.15" | 10 | 23 | 3 3/4" | Not Rated | PVC Plastic | Plastic | 3/4 | __ | GHT | __ | Male | __ | __ | 0000000 | 0000 |
Air-Inflatable Plugs with Bypass
Conform to wide and out-of-round pipes with these inflatable plugs. Also known as pneumatic plugs, they're designed for temporary seals since they can lose pressure over time. Use the bypass tube on these plugs to add air, water, and other fluid to your pipeline or to relieve pressure while testing.
Inflate with a hand pump (sold separately); an air compressor may overinflate the plug and cause damage. Tether the plugs using either the eyebolt or chain/ring so they don't get lost or stuck in your pipes during installation. Pull on the tether for quick and easy removal once testing is complete.
Maximum air back pressure is the amount of pressure a plug can withstand without moving.
Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
For Pipe | Deflated | Max. Back Pressure | Bypass | Material | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | ID | Dia. | Ht. | Chain Lg., ft. | Air, psi | Water, ft. of head | Required Inflation Pressure, psi | Pipe Size | Thread Type | Gender | Temp. Range, °F | Seal | Chain/Ring | Each | |
| 1 1/2 | 1.49"-1.88" | 1 3/8" | 3 13/16" | 1 | 22 | 50 | 40 | 1/4 | NPT | Male | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 0000000 |
| 2 | 1.88"-2.25" | 1 3/4" | 6" | 1 | 22 | 50 | 40 | 1/8 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 000000 |
| 3 | 2.62"-3.25" | 2 1/2" | 8" | 1 | 22 | 50 | 40 | 1/2 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 000000 |
For Pipe | Deflated | Max. Back Pressure | Bypass | Material | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | ID | Dia. | Ht. | Air, psi | Water, ft. of head | Required Inflation Pressure, psi | Pipe Size | Thread Type | Gender | Temp. Range, °F | Seal | Eyebolt | Each | |
| 4 | 3.25"-4.25" | 3 1/8" | 8" | 22 | 50 | 40 | 3/4 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 0000000 |
| 6 | 4.50"-6.25" | 4 1/2" | 7" | 13 | 30 | 35 | 1 1/2 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 000000 |
| 8 | 7.00"-8.25" | 6 3/4" | 10" | 13 | 30 | 35 | 3 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 000000 |
| 10 | 9.00"-10.25" | 8 3/4" | 11 3/4" | 13 | 30 | 35 | 3 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 000000 |
| 12 | 10.50"-12.25" | 10 1/4" | 13 3/4" | 13 | 30 | 35 | 3 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 000000 |
| 16 | 14.00"-16.00" | 13 3/4" | 19 3/4" | 13 | 30 | 35 | 3 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 000000 |
| 12 to 24 | 11.25"-24.00" | 11" | 37" | 13 | 30 | 45 | 3 | NPT | Male | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 00000000 | 00000000 |
Deep-Reach Hex Nut Expansion Plugs with Bypass
Plug your pipe from the inside. Insert these expansion plugs deep into your pipe, and then tighten the nut on the stem. Use the bypass tube to add air, water, and fluid or relieve back pressure. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
For technical drawings and 3-D models, click on a part number.
For Pipe | Max. Back Pressure | Bypass | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal Material | Pipe Size | Thread Type | Gender | Each | |
Zinc-Plated Steel Stem | |||||||||||
| 1/2 | 0.62"-0.64" | 250 | 576 | 4 3/8" | -20° to 225° | Neoprene Rubber | 1/8 | NPT | Male | 0000000 | 0000000 |
| 3/4 | 0.81"-0.82" | 175 | 403 | 4 3/8" | -20° to 225° | Neoprene Rubber | 1/8 | NPT | Male | 0000000 | 000000 |
| 1 | 1.03"-1.05" | 175 | 403 | 6 3/8" | -20° to 225° | Neoprene Rubber | 1/8 | NPT | Male | 0000000 | 000000 |
| 1 1/4 | 1.37"-1.39" | 175 | 403 | 6 3/8" | -20° to 225° | Neoprene Rubber | 1/8 | NPT | Male | 0000000 | 000000 |
| 1 1/2 | 1.58"-1.61" | 75 | 173 | 6 3/8" | -20° to 225° | Neoprene Rubber | 1/8 | NPT | Male | 0000000 | 000000 |
| 2 | 2.03"-2.07" | 75 | 173 | 6 3/8" | -20° to 225° | Neoprene Rubber | 1/8 | NPT | Male | 0000000 | 000000 |
| 3 | 3.03"-3.13" | 50 | 115 | 4 3/8" | -20° to 225° | Neoprene Rubber | 1/4 | NPT | Male | 0000000 | 000000 |
Compact Pressure-Relief Valves
Due to their small size, these valves are often installed on tanks in low-clearance areas. They begin opening at the set pressure. Nylon valves fully open at about 10% over the set pressure and steel valves fully open at about 50% over the set pressure. Valves begin closing as pressure drops and fully close when the system pressure is restored below the set pressure. All have a vent outlet to exhaust discharge directly. Set pressure is not adjustable.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air
- Temperature Range: Not Rated
Inlet | Each | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Location | Maximum Pressure, psi | Relief Port Location | Overall Ht. | Specifications Met | Set Pressure, psi | 1-9 | 10-Up | |
NPTF Male Inlet and Relief Vent | |||||||||
| 1/8 | Bottom | 1 | Top | 1/2" | MS35670 | 0.3 | 0000000 | 00000 | 00000 |
| 1/4 | Bottom | Not Rated | Top | 1 1/8" | __ | 1 | 0000000 | 00000 | 00000 |
| 1/4 | Bottom | Not Rated | Top | 1 1/8" | __ | 7.5 | 0000000 | 00000 | 00000 |
| 1/4 | Bottom | Not Rated | Top | 1 1/8" | __ | 15 | 0000000 | 00000 | 00000 |
| 3/8 | Bottom | Not Rated | Top | 1 3/16" | __ | 1 | 0000000 | 00000 | 00000 |
| 3/8 | Bottom | Not Rated | Top | 1 3/16" | __ | 7.5 | 0000000 | 00000 | 00000 |
| 1/2 | Bottom | Not Rated | Top | 1 3/8" | __ | 1 | 0000000 | 00000 | 00000 |
| 1/2 | Bottom | Not Rated | Top | 1 3/8" | __ | 7.5 | 0000000 | 00000 | 00000 |
- For Use With: Grease, Oil
- Temperature Range: Not Rated
Inlet | Each | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Location | Maximum Pressure, psi | Relief Port Location | Overall Ht. | Specifications Met | Set Pressure, psi | 1-9 | 10-Up | |
NPTF Male Inlet and Relief Vent | |||||||||
| 1/8 | Bottom | 5 | Top | 1/2" | MS35670 | 1 | 000000 | 00000 | 00000 |
| 1/8 | Bottom | 15 | Top | 1/2" | MS35670 | 7.5 | 000000 | 0000 | 0000 |
| 1/8 | Bottom | 25 | Top | 1/2" | MS35670 | 15 | 000000 | 0000 | 0000 |
| 1/8 | Bottom | 80 | Top | 1/2" | MS35670 | 45 | 000000 | 0000 | 0000 |
| 1/8 | Bottom | 140 | Top | 9/16" | MS35670 | 80 | 0000000 | 0000 | 0000 |
| 1/8 | Bottom | 200 | Top | 1/2" | MS35670 | 100 | 0000000 | 0000 | 0000 |
| 1/8 | Bottom | 650 | Top | 1/2" | MS35670 | 400 | 0000000 | 0000 | 0000 |
BSPT Male Inlet and Relief Vent | |||||||||
| 1/8 | Bottom | 1 | Top | 1/2" | __ | 0.3 | 0000000 | 0000 | 0000 |
| 1/8 | Bottom | 5 | Top | 1/2" | __ | 1 | 0000000 | 0000 | 0000 |
| 1/8 | Bottom | 80 | Top | 1/2" | __ | 45 | 0000000 | 0000 | 0000 |
Breather Vents
Protect against excess vacuum and pressure in cylinders, gear boxes, enclosures, manifolds, and tanks. You can also use these breather vents to block debris from entering equipment.
Breather vents with splash guard are good for containers that are often filled and drained; they have a guard that prevents oil from splashing out of the vent hole.
For technical drawings and 3-D models, click on a part number.
| Style | Pipe Size | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Ht. | For Use With | Removes Particle Size Down To, microns | Features | Each | |
NPT Male | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Steel Body and Fitting | ||||||||||
| D | 1/8 | Not Rated | Not Rated | 225° | 1" | Air, Inert Gas, Oil, Water | 40 | __ | 0000000 | 000000 |
| D | 1/4 | Not Rated | Not Rated | 225° | 1" | Air, Inert Gas, Oil, Water | 40 | __ | 0000000 | 00000 |
| D | 3/8 | Not Rated | Not Rated | 225° | 1 1/16" | Air, Inert Gas, Oil, Water | 40 | __ | 0000000 | 00000 |
| D | 1/2 | Not Rated | Not Rated | 225° | 1 3/16" | Air, Inert Gas, Oil, Water | 40 | __ | 0000000 | 00000 |
| D | 3/4 | Not Rated | Not Rated | 225° | 1 1/4" | Air, Inert Gas, Oil, Water | 40 | __ | 0000000 | 00000 |
| E | 1/8 | Not Rated | Not Rated | 225° | 1 3/16" | Air, Inert Gas, Oil, Water | 40 | Splash Guard | 0000000 | 00000 |
| E | 1/4 | Not Rated | Not Rated | 225° | 1 3/16" | Air, Inert Gas, Oil, Water | 40 | Splash Guard | 0000000 | 00000 |
| E | 3/8 | Not Rated | Not Rated | 225° | 1 1/4" | Air, Inert Gas, Oil, Water | 40 | Splash Guard | 0000000 | 00000 |
| E | 1/2 | Not Rated | Not Rated | 225° | 1 5/16" | Air, Inert Gas, Oil, Water | 40 | Splash Guard | 0000000 | 00000 |
| E | 3/4 | Not Rated | Not Rated | 225° | 1 3/8" | Air, Inert Gas, Oil, Water | 40 | Splash Guard | 0000000 | 00000 |
Self-Draining Breather Vents
Minimize moisture buildup in enclosures. Also known as drain plugs, these breather vents have a small outlet that allows condensation to drain. They have a silicone O-ring above the threads for a tight seal. Install them at the lowest point of the enclosure. Breather vents meet IP66 for protection in washdown environments. Use them to prevent excess vacuum and pressure in cylinders, gear boxes, and tanks and to block debris from entering equipment.
Brass breather vents have good corrosion resistance.
316 stainless steel breather vents have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | Max. Temp., °F | Ht. | Dia. | For Use With | Environmental Rating | Each | |
NPT Male | |||||||
|---|---|---|---|---|---|---|---|
Brass Body and Fitting | |||||||
| 1/2 | 320° | 15/16" | 1" | Air | IEC Zone 1 Groups IIC, IIB, IIA, IEC Zone 21 Groups IIIC, IIIB, IIIA, IP66, NEMA 4X | 0000000 | 000000 |
| 1/4 | 320° | 15/16" | 11/16" | Air | IP66, NEMA 4X | 0000000 | 00000 |
316 Stainless Steel Body and Fitting | |||||||
| 1/2 | 320° | 15/16" | 1" | Air | IEC Zone 1 Groups IIC, IIB, IIA, IEC Zone 21 Groups IIIC, IIIB, IIIA, IP66, NEMA 4X | 0000000 | 00000 |
| 1/4 | 320° | 15/16" | 11/16" | Air | IP66, NEMA 4X | 0000000 | 00000 |
Safety-Vent Grease Fittings
To protect equipment from damage, the slit in the threads of these fittings acts like a breather vent, releasing any excess pressure and grease. You’ll know your fitting is properly lubricated if you see any grease come out of this slit.
For technical drawings and 3-D models, click on a part number.
Each | ||||||||
|---|---|---|---|---|---|---|---|---|
| Material | Overall Ht. | Thread Lg. | Shank Lg. | Hex Size | Check Valve Type | 1-9 | 10-Up | |
Straight with Male Threads | ||||||||
1/8 PTF-SAE Threads | ||||||||
| Zinc-Plated Steel | 41/64" | 9/32" | 9/32" | 7/16" | Ball | 0000000 | 00000 | 00000 |