How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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About Noise, Filtration, and Flow Ratings
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Insect Screening
Keep bugs out of your space without blocking airflow or light. When choosing a screen, there are two factors that affect airflow and visibility: mesh size and wire diameter. The higher the mesh size, the smaller the holes. The thicker the wire diameter, the sturdier and tougher the screen. 16 × 18 mesh size with a 0.011" wire diameter is the most common combination—it balances good visibility and airflow with durability.
These screens are made with materials that won’t corrode when exposed to weather. 316 stainless steel and bronze screens have superior corrosion resistance.
Metal screens are stronger and more durable than fiberglass screens. They also hold up better against extreme temperatures. The wires won’t stretch, sag, or tear over time and have good visibility. Though, they’re less forgiving during installation compared to fiberglass screens, so they can get dented.
Adhesive-Back Frame-Mount Weatherstripping
No need to drill mounting holes, this weatherstripping has a peel-and-stick adhesive backing. Mount it to the sides and top of a door or window frame to seal gaps. The adhesive is made of acrylic for a waterproof and weatherproof bond.
V-strip seals are made of stiff, folded material. One arm mounts to your door frame while the other presses firmly against the door to block airflow. They’re also known as tension seals. Bronze seals are durable and corrosion resistant, and often used on historical buildings to match the existing design.
| Seal Material | For Max. Door Gap | Seal Projection | Flange Wd. | Fire Safety Rating | Lg., ft. | Each | |
V-Strip Seal | |||||||
|---|---|---|---|---|---|---|---|
| Bronze | 3/16" | 3/16" | 1" | UL 10B, UL 10C: 1 1/2 hr. for wood fire doors, 3 hr. for metal fire doors | 7 | 000000 | 000000 |
Bronze Unthreaded Pipe Fittings
Snap a brazing ring (sold separately) into these fittings and braze them to unthreaded pipe for a strong, leak-resistant connection. Fittings are also known as Silbraze fittings. They are bronze, which is compatible with brass and has good corrosion resistance.
- For Use With: Air, Oil, Steam, Water, Natural Gas
- Specifications Met: MIL-F-1183
- Pipe Nipples and Pipe: Use Schedule 40 brass
Low-Pressure Brass and Bronze Threaded Pipe Fittings
Use these fittings in low-pressure flow applications. They have good corrosion resistance.
- For Use With:
NPT: Air, Drinking Water, Natural Gas, Oil
BSPT: Air, Natural Gas, Oil, Steam, Water - Pressure Class: 125
- Specifications Met:
NPT: ASME B1.20.1, ASME B16.15, NSF/ANSI 61
BSPT: ASME B16.15, ASME BS21, ASTM B584 - Pipe Nipples and Pipe: Use Schedule 40 brass
- Flanges:
NPT: Use Class 150 brass
BSPT: Use Class 150 bronze
Pipe Size | Max. Pressure | Max. Steam Pressure | Material | Each | |
BSPT Female | |||||
|---|---|---|---|---|---|
| 1/8 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 00000 |
| 1/4 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 0000 |
| 3/8 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 0000 |
| 1/2 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 0000 |
| 3/4 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 00000 |
| 1 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 00000 |
| 1 1/4 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 00000 |
| 1 1/2 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 00000 |
| 2 | 200 psi @ 72° F | 125 psi @ 400° F | Bronze | 00000000 | 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.
| Pipe Size | Max. Temp., °F | Ht. | Dia. | For Use With | Environmental Rating | Each | |
NPT Male | |||||||
|---|---|---|---|---|---|---|---|
Brass Body and Fitting | |||||||
| 1/2 | 320° | 1 1/8" | 1" | Air | IEC Zone 1 Groups IIC, IIB, IIA; IEC Zone 21 Groups IIIC, IIIB, IIIA; IP66; NEMA 4X | 0000000 | 000000 |
| 1/4 | 320° | 1 1/16" | 11/16" | Air | IP66; NEMA 4X | 0000000 | 00000 |
316 Stainless Steel Body and Fitting | |||||||
| 1/2 | 320° | 1 1/8" | 1" | Air | IEC Zone 1 Groups IIC, IIB, IIA; IEC Zone 21 Groups IIIC, IIIB, IIIA; IP66; NEMA 4X | 0000000 | 00000 |
| 1/4 | 320° | 1 1/16" | 11/16" | Air | IP66; NEMA 4X | 0000000 | 00000 |
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.
Style H has a Buna-N O-ring for extra protection against leaks.
| Style | Pipe Size | Thread Size | Max. Flow Rate | Max. Pressure, psi | Max. Temp., °F | Ht. | For Use With | Removes Particle Size Down To, microns | Each | |
NPT Male | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Zinc-Plated Steel Body and Fitting | ||||||||||
| A | 2 | __ | 1,095 scfm @ 100 psi | 150 | 300° | 1 5/8" | Air, Inert Gas | 90 | 0000000 | 000000 |
Nickel-Plated Steel Body and Fitting | ||||||||||
| A | 1/8 | __ | 2 scfm @ 100 psi | 150 | 300° | 7/16" | Air, Inert Gas | 40 | 0000000 | 0000 |
| A | 1/4 | __ | 3 scfm @ 100 psi | 150 | 300° | 5/8" | Air, Inert Gas | 40 | 0000000 | 0000 |
| A | 3/8 | __ | 7 scfm @ 100 psi | 150 | 300° | 3/4" | Air, Inert Gas | 40 | 0000000 | 0000 |
| A | 1/2 | __ | 17 scfm @ 100 psi | 150 | 300° | 7/8" | Air, Inert Gas | 40 | 0000000 | 0000 |
| A | 3/4 | __ | 20 scfm @ 100 psi | 150 | 300° | 1" | Air, Inert Gas | 40 | 0000000 | 0000 |
| A | 1 | __ | 28 scfm @ 100 psi | 150 | 300° | 1 5/16" | Air, Inert Gas | 40 | 0000000 | 0000 |
| A | 1 1/4 | __ | 50 scfm @ 100 psi | 150 | 300° | 1 7/16" | Air, Inert Gas | 40 | 0000000 | 00000 |
| A | 1 1/2 | __ | 73 scfm @ 100 psi | 150 | 300° | 1 1/2" | Air, Inert Gas | 40 | 0000000 | 00000 |
Brass Body and Fitting | ||||||||||
| A | 1/16 | __ | 13 scfm @ 100 psi | 150 | 300° | 1/2" | Air, Inert Gas | 90 | 0000000 | 0000 |
UNF Male | ||||||||||
Brass Body and Fitting | ||||||||||
| A | __ | 10-32 | 6 scfm @ 100 psi | 150 | 300° | 3/8" | Air, Inert Gas | 90 | 0000000 | 0000 |
| H | __ | 10-32 | 1 scfm @ 100 psi | 125 | 200° | 7/16" | Air, Inert Gas | 40 | 0000000 | 0000 |
BSPT Male | ||||||||||
Zinc-Plated Steel Body and Fitting | ||||||||||
| A | 1/8 | __ | 26 scfm @ 100 psi | 150 | 300° | 7/16" | Air, Inert Gas | 90 | 0000000 | 0000 |
| A | 1/4 | __ | 35 scfm @ 100 psi | 150 | 300° | 11/16" | Air, Inert Gas | 90 | 0000000 | 0000 |
| A | 3/8 | __ | 87 scfm @ 100 psi | 150 | 300° | 13/16" | Air, Inert Gas | 90 | 0000000 | 0000 |
| A | 1/2 | __ | 131 scfm @ 100 psi | 150 | 300° | 1" | Air, Inert Gas | 90 | 0000000 | 0000 |
| A | 3/4 | __ | 219 scfm @ 100 psi | 150 | 300° | 1 1/16" | Air, Inert Gas | 90 | 0000000 | 0000 |
NPSM Female | ||||||||||
Zinc-Plated Steel Body and Fitting | ||||||||||
| F | 1/8 | __ | 26 scfm @ 100 psi | 150 | 300° | 5/8" | Air, Inert Gas | 90 | 0000000 | 0000 |
| F | 1/4 | __ | 35 scfm @ 100 psi | 150 | 300° | 3/4" | Air, Inert Gas | 90 | 0000000 | 0000 |
| F | 3/8 | __ | 87 scfm @ 100 psi | 150 | 300° | 15/16" | Air, Inert Gas | 90 | 0000000 | 0000 |
| F | 1/2 | __ | 131 scfm @ 100 psi | 150 | 300° | 1" | Air, Inert Gas | 90 | 0000000 | 0000 |