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Threaded Fittings

 

 

Threaded fittings mate via male and female connectors that screw together. Threaded fittings are available for pipe, tubing, valves defined as NPT, NPTF or BSPT fittings. Threaded metal connection are not suitable for high vacuum levels since the small spaces between the threads and blind holes can cause virtual leaks and they joint may contain volatile compounds or elastomeric sealants. Threaded fittings with venting slot and TeflonTM tape seal may be suitable down to 10-6 torr at low temperatures (bakeout <260oC). For very high vacuum (10-9 torr), a clamped or bolted connection with a metal seal should be chosen. NPT is the designation for American Standard Taper Pipe Threads for General Use. NPTF stands for Dryseal American Standard Taper Pipe Threads.

Products & Services
Vacuum flanges and fittings connect runs of pipe and tubing in vacuum or process gas system to other tubing sections, pipe, hose, valves, pumps, chambers or other vacuum components. Search by Specification | Learn more about Vacuum Flanges and Fittings
Vacuum chambers and components are specialized vessels that can maintain a high vacuum process environment for manufacturing thin films, microelectronics, optics and materials.  Search by Specification | Learn more about Vacuum Chambers and Components
Grease fittings are used to lubricate assemblies and parts. By applying pressure to a ball valve in the fitting, grease flows into the lubricating chamber but cannot flow out. Learn more about Grease Fittings
Air blow guns attach to air lines for the manual actuation and/or control of air discharge. They are used primarily for debris removal and purging, non-contact part cleaning and drying, and general laboratory or industrial applications. Search by Specification | Learn more about Air Blow Guns
Thread gages are dimensional instruments for measuring and/or verifying thread size, pitch or other parameters. Search by Specification | Learn more about Thread Gages
Product Announcements
British Metrics - Malleable Iron BSPT Threaded Fittings
Malleable Iron BSPT & BSPP Threaded Fittings are available in black or galvanized. (read more)
Parker Hannifin - Brass Products Division - Metri Adapters
A line of brass metric adapters to simplify the installation of pneumatic systems. (read more)
Parker Hannifin / Fluid Connectors / Hose Products Division - Crimp Style Flange & Seal Lock Brass Fittings
Eliminate premature hose failure with Parker 79 Series Fittings. Since assembly of No-Skive hose and fittings does not require removal of the outer cover of the hose, the possibility of skiving too... (read more)
U.S. Plastic Corporation - Nylon Tube And Hose Fittings
These nylon fittings are used to connect tubing or hose to pipe. Each fitting has a serrated end for inserting into flexible hose or tubing and the other end is threaded with standard male pipe... (read more)
NOSHOK, Inc. - 2-Valve Block & Bleed Needle Valves
NOSHOK announces the availability of its 2-Valve Block & Bleed Needle Valves, backed by NOSHOK's exclusive three year warranty. All NOSHOK Valves are 100% Helium leak tested to 1 x 10-4 ml/s for... (read more)
Beswick Engineering Co., Inc. - Beswick Compression Fittings
Beswick compression fittings (for 1/16", 1/8" and NOW 1/4" OD Tubing) give you the ability to operate at high pressures and temperatures while maintaining a small envelope. Beswick compression... (read more)
FasTest, Inc. - Connectors for Fast Transmitter Calibration
FasTest's MIT-TM TwistMate connector is specifically designed for connecting to the recessed 1/4" NPTF transmitter manifold port (IEC 61518 2.126 (54) as well as 1/4" side manifold ports. (read more)
Alliance Plastics - Threaded Caps & Plugs
Alliance Plastics offers one of the most versatile and complete threaded cap and plug ranges in the industry with 45 styles to choose from. These styles are designed to protect your mating threads... (read more)
Topics of Interest
Threaded joints are normally used in low-pressure small-bore, nonflammable service, although threaded iron pipe is commonly used in domestic gas piping and threaded joints up to NPS 12 (DN 300) have... (Read More)
Valve End Connection Types The piping specifications dictate the valve end connections. The project piping specifications themselves are governed by the engineering standards developed by numerous... (Read More)
Tri-SealTM connections are a proprietary bolted connection of A&N Corporation. Tri-Seal connections have a unique flange system which functions like ISO-KF but accommodates metal gaskets for... (Read More)
Malleable-Iron Threaded Fittings Malleable-iron fittings are also extensively produced. They are generally made with threaded joints. Malleable-iron threaded fittings for Classes 150 and 300 are... (Read More)
Plastics piping can be joined by different methods (see Table D1.8) depending on the characteristics of the material. For example, ABS, PVC, and CPVC can be solvent cemented. However, polyolefins... (Read More)
See more product announcements for Vacuum Flanges and Fittings
Vacuum Bends and Accessories

Vacuum Bends and Accessories
Morris Coupling Company


Vacuum Flanges & Fittings

Vacuum Flanges & Fittings
EBARA Technologies, Inc.


Hybrid Adapter Fittings

Hybrid Adapter Fittings
A&N Corporation


11 See more product announcements for Vacuum Flanges and Fittings