Threaded and welding fittings

The Hy-Lok threaded and welding fittings are precision threaded fittings for instrumentation and process technology. They have high-quality threads for leak-free, safe pipework systems. The outside threads are protected by a plastic cap. Various materials are available, including SS316, brass and carbon steel, as well as a wide choice of threads and configurations.

Fitting types

H-SLA
Screw fitting, L-shaped 90°
H-SLC
Screw fitting, L-shaped 90°
H-SLCR
Screw fitting, L-shaped 90°, reduced
H-SML
Screw fitting, L-shaped 90°
H-STA
Screw fitting, T-shaped
H-SRT
Screw fitting, T-shaped 180°
H-SBT
Screw fitting, T-shaped 90°
H-SMT
Screw fitting, T-shaped
H-SXA
Screw fitting, cross
H-SSA
Screw fitting, straight
H-SSR
Screw fitting, straight, reduced
H-SCA
Pipe sealing cap
H-SPB
Plug
H-SBE
Screw fitting, straight
H-SNA
Screw fitting, straight
H-SNR
Screw fitting, straight, reduced
H-SNL
Screw fitting, straight, long
H-SNA
Screw fitting, straight
H-MFAA
Screw fitting, straight
H-MFAB
Screw fitting, straight
H-MFAA
Screw fitting, straight
H-MFAC
Screw fitting, straight, reduced
H-SHB
Screw fitting, straight, reduced
H-SBS
Screw fitting, straight, vented
H-SUR
Screw fitting, straight, ball socket
W-P
Gasket
H-SWFC
Pipe socket welding fitting, straight
H-SWLA
Pipe socket welding fitting, L-shaped 90°
H-SWTA
Pipe socket welding fitting, T-shaped
H-SWXA
Pipe socket welding fitting, cross
H-SSD
Male connector, straight, with welding connector
H-SLG
Screw fitting, L-shaped, with welding connector
H-SLD
Screw fitting, L-shaped, with welding connector
H-SWRM
Screw fitting, straight, with welding connector, reduced
H-SWRM
Screw fitting, straight, with welding connector, reduced
Trapez Icon

The fitting material and the material to be welded have to be the same with respect to coefficient of expansion and shrinkage. All socket welding openings have a taper at their ends that ensure a perfect fit as well as correct installation and alignment.

Temperature ranges:  
SS316: -198°C to 648°C
Brass: -198°C to 204 °C
Carbon steel: -29 °C to 176 °C

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