Tube Fitting, Weld Fitting - Weld-lok Series | Product Series

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Connection 3 Tube O.D. (inch)

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Connection 3 Style

Connection 4 Style

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Tube Fitting, Weld Fitting - Weld-lok Series

Tube Fitting, Weld Fitting - Weld-lok Series

Parker's Weld-lok® Series fitting is a permanent socket weld tube fitting that meets the most exacting requirements of any system in the chemical and nuclear industry.

Technical Specifications

  • Fitting Type: Welded, Soldered
  • Connection 1 Size: 1/4" to 3/4", Socket Weld, Single Ferrule Compression
  • Connection 2 Size: 1/4" to 3/4", Socket Weld
  • Connection 3 Tube Outside Diameter: 1/4 to 3/4 inch
  • Connection 4 Tube Outside Diameter: 1/4 to 3/4 inch
  • Body Type: Union, Elbow, 45 Elbow, Tee, Cross, Socket Weld Connector
  • Maximum Operating Pressure: 9,600, 8,100, 7,300, 6,000 psi
  • Connection 3 Size: Socket Weld
  • Connection 4 Size: Socket Weld
  • Materials of Construction: Stainless Steel
Safety Warning

Full Product Description

Parker’s Weld-lok® Series of permanent socket weld and butt weld tube fittings meet the most exacting requirements of any system. In contrast to general purpose weld fittings, the Parker weld fittings have the ability to directly connect to a tubing system with either single or two ferrule compression tube fittings. These 316 stainless steel fittings are a one piece adapter that makes a weld connection to a removable compression connection where removal may be necessary.
These weld fittings are made from ASTM/ASME close grain forgings and bar stock. They are designed in accordance with ANSI B 16.11, which covers “Forged Steel Fittings Socket Welded and threaded”. Parker’s design parallels the Schedule 80, 3000 pound fitting pressure class, and is compatible with O.D. tube wall thickness meeting the related (3000 pound pipe class) pressure requirements.
Weld-lok® Fittings conform to ANSI B31.1, ANSI B31.7, and Section III of the ASME Boiler and pressure Vessel Code to meet customer industry requirements.

Markets:
• Power
• Chemical
• Nuclear Plants

Features/ Benefits:
• Heat Code Traceable for material accountability
• Close Grain Forgings
• Variety of configurations
• Single Ferrule and Two Ferrule connections available

Applications:
• Steam Lines
• Process Piping
• Sensing Lines

Related Documents

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Products Connection 1 Size Connection 2 Size Connection 3 Tube O.D. (inch) Connection 4 Tube O.D. (inch) Body Type Maximum Working Pressure (psi) Connection 1 Style Connection 2 Style Connection 3 Style Connection 4 Style Body Material
4 HW-SS 1/4" 1/4" N/A N/A Union 9,600 Socket Weld Socket Weld N/A N/A Stainless Steel
6 HW-SS 3/8" 3/8" N/A N/A Union 8,100 Socket Weld Socket Weld N/A N/A Stainless Steel
8 HW-SS 1/2" 1/2" N/A N/A Union 7,300 Socket Weld Socket Weld N/A N/A Stainless Steel
12 HW-SS 3/4" 3/4" N/A N/A Union 6,000 Socket Weld Socket Weld N/A N/A Stainless Steel
4 EW-SS 1/4" 1/4" N/A N/A Elbow 9,600 Socket Weld Socket Weld N/A N/A Stainless Steel
6 EW-SS 3/8" 3/8" N/A N/A Elbow 8,100 Socket Weld Socket Weld N/A N/A Stainless Steel
8 EW-SS 1/2" 1/2" N/A N/A Elbow 7,300 Socket Weld Socket Weld N/A N/A Stainless Steel
12 EW-SS 3/4" 3/4" N/A N/A Elbow 6,000 Socket Weld Socket Weld N/A N/A Stainless Steel
4 NW-SS 1/4" 1/4" N/A N/A 45 Elbow 9,600 Socket Weld Socket Weld N/A N/A Stainless Steel
6 NW-SS 3/8" 3/8" N/A N/A 45 Elbow 8,100 Socket Weld Socket Weld N/A N/A Stainless Steel
8 NW-SS 1/2" 1/2" N/A N/A 45 Elbow 7,300 Socket Weld Socket Weld N/A N/A Stainless Steel
12 NW-SS 3/4" 3/4" N/A N/A 45 Elbow 6,000 Socket Weld Socket Weld N/A N/A Stainless Steel
4 JW-SS 1/4" 1/4" 1/4" N/A Tee 9,600 Socket Weld Socket Weld Socket Weld N/A Stainless Steel
6 JW-SS 3/8" 3/8" 3/8" N/A Tee 8,100 Socket Weld Socket Weld Socket Weld N/A Stainless Steel
8 JW-SS 1/2" 1/2" 1/2" N/A Tee 7,300 Socket Weld Socket Weld Socket Weld N/A Stainless Steel
12 JW-SS 3/4" 3/4" 3/4" N/A Tee 6,000 Socket Weld Socket Weld Socket Weld N/A Stainless Steel
4 KW-SS 1/4" 1/4" 1/4" 1/4" Cross 9,600 Socket Weld Socket Weld Socket Weld Socket Weld Stainless Steel
6 KW-SS 3/8" 3/8" 3/8" 3/8" Cross 8,100 Socket Weld Socket Weld Socket Weld Socket Weld Stainless Steel
8 KW-SS 1/2" 1/2" 1/2" 1/2" Cross 7,300 Socket Weld Socket Weld Socket Weld Socket Weld Stainless Steel
12 KW-SS 3/4" 3/4" 3/4" 3/4" Cross 6,000 Socket Weld Socket Weld Socket Weld Socket Weld Stainless Steel
4-4 ZHBW-SS 1/4" 1/4" N/A N/A Socket Weld Connector N/A Single Ferrule Compression Socket Weld N/A N/A Stainless Steel
6-6 ZHBW-SS 3/8" 3/8" N/A N/A Socket Weld Connector N/A Single Ferrule Compression Socket Weld N/A N/A Stainless Steel
8-8 ZHBW-SS 1/2" 1/2" N/A N/A Socket Weld Connector N/A Single Ferrule Compression Socket Weld N/A N/A Stainless Steel
12-12 ZHBW-SS 3/4" 3/4" N/A N/A Socket Weld Connector N/A Single Ferrule Compression Socket Weld N/A N/A Stainless Steel
2 HW-SS 1/8" 1/8" N/A N/A Union 10,200 Socket Weld Socket Weld N/A N/A Stainless Steel
16 HW-SS 1" 1" N/A N/A Union 4,900 Socket Weld Socket Weld N/A N/A Stainless Steel
20 HW-SS 1 1/4" 1 1/4" N/A N/A Union 4,600 Socket Weld Socket Weld N/A N/A Stainless Steel
24 HW-SS 1 1/2" 1 1/2" N/A N/A Union 3,700 Socket Weld Socket Weld N/A N/A Stainless Steel
32 HW-SS 2" 2" N/A N/A Union 3,300 Socket Weld Socket Weld N/A N/A Stainless Steel
16 EW-SS 1" 1" N/A N/A Elbow 4,400 Socket Weld Socket Weld N/A N/A Stainless Steel
20 EW-SS 1 1/4" 1 1/4" N/A N/A Elbow 4,600 Socket Weld Socket Weld N/A N/A Stainless Steel
24 EW-SS 1 1/2" 1 1/2" N/A N/A Elbow 3,700 Socket Weld Socket Weld N/A N/A Stainless Steel
32 EW-SS 2" 2" N/A N/A Elbow 3,300 Socket Weld Socket Weld N/A N/A Stainless Steel
16 NW-SS 1" 1" N/A N/A 45 Elbow 4,400 Socket Weld Socket Weld N/A N/A Stainless Steel
20 NW-SS 1 1/4" 1 1/4" N/A N/A 45 Elbow 4,600 Socket Weld Socket Weld N/A N/A Stainless Steel
24 NW-SS 1 1/2" 1 1/2" N/A N/A 45 Elbow 3,700 Socket Weld Socket Weld N/A N/A Stainless Steel
32 NW-SS 2" 2" N/A N/A 45 Elbow 3,300 Socket Weld Socket Weld N/A N/A Stainless Steel
16 JW-SS 1" 1" 1" N/A Tee 4,400 Socket Weld Socket Weld Socket Weld N/A Stainless Steel
20 JW-SS 1 1/4" 1 1/4" 1 1/4" N/A Tee 4,600 Socket Weld Socket Weld Socket Weld N/A Stainless Steel
24 JW-SS 1 1/2" 1 1/2" 1 1/2" N/A Tee 3,700 Socket Weld Socket Weld Socket Weld N/A Stainless Steel
32 JW-SS 2" 2" 2" N/A Tee 3,300 Socket Weld Socket Weld Socket Weld N/A Stainless Steel
16 KW-SS 1" 1" 1" 1" Cross 4,400 Socket Weld Socket Weld Socket Weld Socket Weld Stainless Steel
20 KW-SS 1 1/4" 1 1/4" 1 1/4" 1 1/4" Cross 4,600 Socket Weld Socket Weld Socket Weld Socket Weld Stainless Steel
24 KW-SS 1 1/2" 1 1/2" 1 1/2" 1 1/2" Cross 3,700 Socket Weld Socket Weld Socket Weld Socket Weld Stainless Steel
32 KW-SS 2" 2" 2" 2" Cross 3,300 Socket Weld Socket Weld Socket Weld Socket Weld Stainless Steel
2 CW-SS 1/8" 1/8" N/A N/A Male Elbow 9,100 Socket Weld NPT M N/A N/A Stainless Steel
4 CW-SS 1/4" 1/4" N/A N/A Male Elbow 9,100 Socket Weld NPT M N/A N/A Stainless Steel
6 CW-SS 3/8" 3/8" N/A N/A Male Elbow 7,500 Socket Weld NPT M N/A N/A Stainless Steel
8 CW-SS 1/2" 1/2" N/A N/A Male Elbow 7,200 Socket Weld NPT M N/A N/A Stainless Steel
12 CW-SS 3/4" 3/4" N/A N/A Male Elbow 6,000 Socket Weld NPT M N/A N/A Stainless Steel
16 CW-SS 1" 1" N/A N/A Male Elbow 4,400 Socket Weld NPT M N/A N/A Stainless Steel
20 CW-SS 1 1/4" 1 1/4" N/A N/A Male Elbow 3,500 Socket Weld NPT M N/A N/A Stainless Steel
24 CW-SS 1 1/2" 1 1/2" N/A N/A Male Elbow 2,900 Socket Weld NPT M N/A N/A Stainless Steel
2 DW-SS 1/8" 1/8" N/A N/A Female Elbow 5,500 Socket Weld NPT F N/A N/A Stainless Steel
4 DW-SS 1/4" 1/4" N/A N/A Female Elbow 5,500 Socket Weld NPT F N/A N/A Stainless Steel
6 DW-SS 3/8" 3/8" N/A N/A Female Elbow 5,600 Socket Weld NPT F N/A N/A Stainless Steel
8 DW-SS 1/2" 1/2" N/A N/A Female Elbow 5,000 Socket Weld NPT F N/A N/A Stainless Steel
12 DW-SS 3/4" 3/4" N/A N/A Female Elbow 3,500 Socket Weld NPT F N/A N/A Stainless Steel
16 DW-SS 1" 1" N/A N/A Female Elbow 3,900 Socket Weld NPT F N/A N/A Stainless Steel
20 DW-SS 1 1/4" 1 1/4" N/A N/A Female Elbow 3,100 Socket Weld NPT F N/A N/A Stainless Steel
24 DW-SS 1 1/2" 1 1/2" N/A N/A Female Elbow 2,500 Socket Weld NPT F N/A N/A Stainless Steel
2 GW-SS 1/8" 1/8" N/A N/A Female Connector 6,400 Socket Weld NPT F N/A N/A Stainless Steel
4 GW-SS 1/4" 1/4" N/A N/A Female Connector 6,400 Socket Weld NPT F N/A N/A Stainless Steel
6 GW-SS 3/8" 3/8" N/A N/A Female Connector 6,600 Socket Weld NPT F N/A N/A Stainless Steel
8 GW-SS 1/2" 1/2" N/A N/A Female Connector 5,300 Socket Weld NPT F N/A N/A Stainless Steel
12 GW-SS 3/4" 3/4" N/A N/A Female Connector 4,300 Socket Weld NPT F N/A N/A Stainless Steel
16 GW-SS 1" 1" N/A N/A Female Connector 4,500 Socket Weld NPT F N/A N/A Stainless Steel
20 GW-SS 1 1/4" 1 1/4" N/A N/A Female Connector 3,500 Socket Weld NPT F N/A N/A Stainless Steel
4 RW-SS 1/4" 1/4" 1/4" N/A Male Run Tee 9,100 Socket Weld NPT M Socket Weld N/A Stainless Steel
6 RW-SS 3/8" 3/8" 3/8" N/A Male Run Tee 9,100 Socket Weld NPT M Socket Weld N/A Stainless Steel
8 RW-SS 1/2" 1/2" 1/2" N/A Male Run Tee 9,100 Socket Weld NPT M Socket Weld N/A Stainless Steel
12 RW-SS 3/4" 3/4" 3/4" N/A Male Run Tee 6,000 Socket Weld NPT M Socket Weld N/A Stainless Steel
16 RW-SS 1" 1" 1" N/A Male Run Tee 4,400 Socket Weld NPT M Socket Weld N/A Stainless Steel
20 RW-SS 1 1/4" 1 1/4" 1 1/4" N/A Male Run Tee 3,500 Socket Weld NPT M Socket Weld N/A Stainless Steel
24 RW-SS 1 1/2" 1 1/2" 1 1/2" N/A Male Run Tee 2,900 Socket Weld NPT M Socket Weld N/A Stainless Steel
32 RW-SS 2" 2" 2" N/A Male Run Tee 2,600 Socket Weld NPT M Socket Weld N/A Stainless Steel
4 SW-SS 1/4" 1/4" 1/4" N/A Male Branch Tee 9,100 Socket Weld Socket Weld NPT M N/A Stainless Steel
6 SW-SS 3/8" 3/8" 3/8" N/A Male Branch Tee 9,100 Socket Weld Socket Weld NPT M N/A Stainless Steel
8 SW-SS 1/2" 1/2" 1/2" N/A Male Branch Tee 9,100 Socket Weld Socket Weld NPT M N/A Stainless Steel
12 SW-SS 3/4" 3/4" 3/4" N/A Male Branch Tee 6,000 Socket Weld Socket Weld NPT M N/A Stainless Steel
16 SW-SS 1" 1" 1" N/A Male Branch Tee 4,400 Socket Weld Socket Weld NPT M N/A Stainless Steel
20 SW-SS 1 1/4" 1 1/4" 1 1/4" N/A Male Branch Tee 3,500 Socket Weld Socket Weld NPT M N/A Stainless Steel
24 SW-SS 1 1/2" 1 1/2" 1 1/2" N/A Male Branch Tee 2,900 Socket Weld Socket Weld NPT M N/A Stainless Steel
32 SW-SS 2" 2" 2" N/A Male Branch Tee 2,600 Socket Weld Socket Weld NPT M N/A Stainless Steel

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