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Coupling 1'' NPT 321 cl.3000
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Description
Coupling 1'' NPT 321 cl.3000
- size: 1'' (thread diameter is 30.3 ÷ 30.8mm)
- thread type: NPT (conical)
- material: stainless steel 321 (1.4541 SS321 AISI321)
- pressure class: 3000lbs (206bar)
- size W: 60mm
- size D: 44mm
- high pressure thick wall socket
- certification 3.1 on request (free of charge)
- origin: European Union

Other name: Coupling 1'' NPT 321 cl.3000 thick-walled coupler high-pressure 206bar stainless steel inox pipe acid resistant coupler 1.4541 SS321 AISI321
Information
Coupling 1'' NPT 321 cl.3000 - belongs to the threaded fittings "high-pressure fittings". The couplings are available in all inch sizes. Each coupler is stamped with size, grade, melt and pressure class. It guarantees the safety and durability of the installation. All threaded fittings are certified 3.1.
Steel grade 321 - is a stainless steel (18/8 chromium-nickel alloy) with the addition of titanium, making it an excellent choice in higher temperature environments. Titanium stabilizes the material, removing its susceptibility to intergranular corrosion. A grade rarely seen in architecture. High strength, resistance to scaling, resistance to water corrosion.
Other name: 1.4541 SS321 AISI321
Application: heat exchangers, pharmaceutical equipment, dairy equipment, brewing industry, marine fittings, coastal architecture, food industry.
More about couplings, you may find here>>
Our offer includes a wide range high-pressure couplings and fittings. If you have any questions contact us. Call 63/2614202 or send an inquiry to email: biuro@polberis.pl
Write to us if you have European VAT number and do not want to pay the TAX. We will prepare an offer without VAT. Contact us if you want to know price of shipping. Send an inquiry to e-mail: biuro@polberis.pl
Technical data
| Coupling Type | Coupling |
| Material | Stainless Steel |
| Pressure | Pressure Range 101–250 bar |
| Connection 1 | 1'' |
| Thread Type – Connection 1 | NPT Thread |
| Connection 2 | 1'' |
| Thread Type – Connection 2 | NPT Thread |
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Coupling 2'' BSP A105 cl.3000
- high pressure coupling
- certificate 3.1
Coupling 1'' BSP 316L cl.3000 206bar
- high-pressure coupling
- certificate 3.1 at the request of the customer (free of charge)
- origin: European Union
Coupling 1/4'' BSPT A105 Class 3000 Steel
- stal kotłowa do spawania
- gwint stożkowy BSPT (wg. ISO7Rc)
- do wysokiego ciśnienia 206bar
- atest 3.1
Coupling 3/4" BSPT Carbon Steel A105 Class 3000 (206 bar)
- boiler steel for welding
- BSPT tapered thread (per ISO 7Rc)
- for high pressure up to 206 bar
- 3.1 certificate
Coupling 1" BSPT Carbon Steel A105 Class 3000 (206 bar)
- boiler steel for welding
- BSPT tapered thread (per ISO 7Rc)
- for high pressure up to 206 bar
- 3.1 certificate
Coupling 1''- 1 1/4'' socket weld A105 cl.3000
- mufa do spawania
- łącznik do spawania rur
- atest 3.1
Coupling 2" BSPT Carbon Steel A105 Class 3000 (206 bar)
- boiler steel for welding
- BSPT tapered thread (per ISO 7Rc)
- for high pressure up to 206 bar
- 3.1 certificate
Coupling 1/2'' BSP 316L cl.3000 206bar
- high-pressure coupling
- certificate 3.1 at the request of the customer (free of charge)
- origin: European Union
Hex coupling M20x1,5 steel
- thread type: metric
- high pressure coupling
Coupling 1/8" BSP Long 33 mm Carbon Steel S235JR
Coupling 3/8" socket weld 316L cl.3000
Coupling 1/8'' BSP 206bar 304L
Coupling 1/2" BSP Stainless Steel 316Ti (1.4571) PN50
Reducing Coupling 1/4" × 1/8" Galvanized Malleable Iron
Reducing Coupling 3/8" × 1/8" Galvanized Malleable Iron
Reducing Coupling 3/8" × 1/4" Galvanized Malleable Iron
Reducing Coupling 1/2" × 1/4" Galvanized Malleable Iron
Reducing Coupling 3/4" × 1/4" Galvanized Malleable Iron
Reducing Coupling 1" × 3/8" Galvanized Malleable Iron
Reducing Coupling 1" × 1/2" Galvanized Malleable Iron
Reducing Coupling 1" × 3/4" Galvanized Malleable Iron
Reducing Coupling 1 1/4" × 1/2" Galvanized Malleable Iron
Reducing Coupling 1 1/4" × 3/4" Galvanized Malleable Iron
Reducing Coupling 1 1/4" × 1" Galvanized Malleable Iron
Reducing Coupling 1 1/2" × 3/4" Galvanized Malleable Iron
Reducing Coupling 1 1/2" × 1" Galvanized Malleable Iron
Reducing Coupling 1 1/2" × 1 1/4" Galvanized Malleable Iron
Reducing Coupling 2" × 1/2" Galvanized Malleable Iron
Reducing Coupling 2" × 3/4" Galvanized Malleable Iron
Reducing Coupling 2" × 1" Galvanized Malleable Iron
Reducing Coupling 2" × 1 1/4" Galvanized Malleable Iron
Reducing Coupling 2" × 1 1/2" Galvanized Malleable Iron
Reducing Coupling 2 1/2" × 1 1/4" Galvanized Malleable Iron
Reducing Coupling 2 1/2" × 1 1/2" Galvanized Malleable Iron
Reducing Coupling 2 1/2" × 2" Galvanized Malleable Iron
Reducing Coupling 3" × 1 1/2" Galvanized Malleable Iron
Reducing Coupling 3" × 2" Galvanized Malleable Iron
Reducing Coupling 3" × 2 1/2" Galvanized Malleable Iron
Reducing Coupling 4" × 2" Galvanized Malleable Iron
Reducing Coupling 4" × 2 1/2" Galvanized Malleable Iron
Reducing Coupling 4" × 3" Galvanized Malleable Iron
Coupling 1'' BSP A350 LF2 cl.3000
- high pressure coupling
- certificate 3.1
- orgin: European Union
Coupling 1/2'' BSP A350 LF2 cl.3000
Coupling 3/4'' BSP A350 LF2 cl.3000
- high pressure coupling
- certificate 3.1
- orgin: European Union
Coupling 1/4'' BSP A350 LF2 cl.3000
- high pressure coupling
- certificate 3.1
- orgin: European Union
Coupling 1/4'' x 1/8'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 3/8'' x 1/4'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 1/2'' x 1/8'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 1/2'' x 1/4'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 1/2'' x 3/8'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 3/4'' x 1/4'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 3/4'' x 3/8'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 3/4'' x 1/2'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 1'' x 1/2'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 1'' x 3/4'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 1 1/4'' x 1/2'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 1 1/4'' x 3/4'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 1 1/4'' x 1'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 1 1/2'' x 3/4'' stainless steel 316 BSP
- stal nierdzewna gat. 316
Coupling 1 1/2'' x 1'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 1 1/2'' x 1 1/4'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 2'' x 1'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 2'' x 1 1/4'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 2'' x 1 1/2'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 2 1/2'' x 2'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 3'' x 2'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 3'' x 2 1/2'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 4'' x 3'' stainless steel 316 BSP
- material: stainless steel 316
Coupling 1/4'' BSP A105 cl.3000
- high pressure coupling
- certificate 3.1
Coupling 2 1/2'' NPT A105 cl.3000
- steel for welding
- certificate 3.1 (free of charge)
- origin: European Union
Coupling 1 1/4'' BSP A105 cl.3000
- high pressure coupling
- certificate 3.1
Coupling 1 1/2'' BSP 316L cl.3000 206bar
- high-pressure coupling
- certificate 3.1 at the request of the customer (free of charge)
- origin: European Union
Coupling 1 1/4'' BSP 316L cl.3000 206bar
- high-pressure coupling
- certificate 3.1 at the request of the customer (free of charge)
- origin: European Union
Coupling 1 1/4'' BSP 206bar 304L
- high pressure coupling
- certificate 3.1
- orgin: European Union
Reducing coupling 3/4''- 1'' BSP steel
- steel coupling
Coupling 3/8" BSPT Class 3000 ASTM A105
- boiler steel for welding
- BSPT tapered thread (per ISO 7Rc)
- for high pressure up to 206 bar
- 3.1 certificate
Coupling 1/2'' BSP stainless steel 316
Coupling 3/4" socket weld 316L cl.3000
- mufa do spawania
- atest 3.1
- pochodzenie: Unia Europejska
Coupling 1/2'' x 1'' BSP cl.3000 A105 steel
- gwint standardowy polski BSP (inna nazwa G, Rp, walcowy prosty)
- atest 3.1
- pochodzenie: Unia Europejska
Coupling 2'' steel for welding
Reducing Coupling 1/2" × 1/4" BSP Class 3000 ASTM A105
-
Polish standard thread (BSP)
Coupling 2''- 3'' socket weld A105 cl.3000
- mufa do spawania
- łącznik do spawania rur
- atest 3.1
Coupling 1 1/4'' steel for welding
Coupling 1/8'' BSP stainless steel 316
Coupling 1/4'' BSP stainless steel 316
Coupling 3/8'' BSP stainless steel 316
Coupling 3/4'' BSP stainless steel 316
Coupling 1'' BSP stainless steel 316
Coupling 1 1/4'' BSP stainless steel 316
Coupling 2'' BSP stainless steel 316
Coupling 2 1/2'' BSP stainless steel 316
Coupling 3'' BSP stainless steel 316
Coupling 4'' BSP stainless steel 316
Pipe nipple 1'' NPT 75mm A106
- material: A106 (P265GH K18 ST.45.8 1.0405)
- certificate 3.1
32,9 ÷ 33,4
Union 1'' socket weld 304L cl.3000
- material: stainless steel for welding 304L / SS304L
- certificate 3.1 at the request of the customer (free of charge)
- origin: European Union
Union 1'' socket weld 316L cl.3000
- śrubunek do spawania
- do łączenia rur
BOSS 1'' A105 cl.3000 B16.11 ASME
Elbow 1" socket weld A105 cl.3000 45 degrees
- łącznik do spawania rur
- atest 3.1
Coupling 1''-1 1/2'' socket weld A105 cl.3000
- mufa do spawania
- łącznik do spawania rur
- atest 3.1
Tee 1'' socket weld 304L cl.3000
- pipe fitting
- 3.1 certification
Reduction WELDOLET XS 1'' x 12'' - 36'' BW A105
1'' x 12'' - 36''
Elbow 1'' BSP A105 90 deg. cl.3000
- certificate 3.1
- orgin: European Union
Elbow 1" socket weld A105 cl.3000 90 degrees
- certificate 3.1 at the request of the customer (free of charge)
- origin: European Union
Pipe nipple 1'' NPT 100mm A106
Tee 1'' socket weld 316L cl.3000
- welded tee
- stainless steel
- 3.1 certificate
- origin: European Union
Reducing tee 1''x1/2''x1'' NPT A105 cl.3000
- certificate 3.1
- orgin: European Union
Tee 1 1/4''x1'' socket weld 304L cl.3000
- 5/4'‘ x 1’' high-pressure reducing tee
- 3.1 certificate
- Country of origin: European Union
Reduction coupling 3/4" - 1'' socket weld 316L cl. 3000
Coupling 1''-3/4'' socket welt A105 cl.3000
- mufa do spawania
- łącznik do spawania rur
- atest 3.1
Tee 1''x1/2'' socket weld A105 cl.3000
- tee for welding
- size: 3/2''
- certificate 3.1
Elbow 1'' socket weld 316L cl.3000 45 degrees
- certificate 3.1 at the request of the customer (free of charge)
- origin: European Union
Elbow 1'' socket weld 316L cl.3000 90 degrees
- certificate 3.1 at the request of the customer (free of charge)
- origin: European Union
Elbow 1'' socket weld 304L cl.3000 90 degrees
- kolano do spawania
- do wysokiego ciśnienia 206bar
- atest 3.1
Tee 1''x3/4'' socket weld 316L cl.3000
Weld-on pipe nipple 1'' 316L
Tee 2" × 1 1/4" STD ASTM A234 WPB
- steel welded tee
Ball Valve 1" NPT Female Thread
Stainless pipe nipple 1'' 316L NPT 100mm
Coupling 4'' NPT 304L cl.3000
- mufa ze stali nierdzewnej
- do wysokiego ciśnienia: 206bar
- atest 3.1
- pochodzenie: Unia Europejska
Coupling 1'' BSP 206bar 304L
- high pressure coupling
- certificate 3.1
- orgin: European Union
Coupling 1/2" NPT Class 6000 (413 bar) Stainless Steel 316L (1.4404)
- pressure class: 6,000 lbs (i.e., 413 bar)
- 3.1 certification (free of charge)
- country of origin: European Union
Half coupling 1'' for welding
Half coupling 1/2'' for welding
Half coupling 2'' for welding
Square Head Plug 2" NPT A105 cl.3000
- high-pressure plug
- certificate 3.1 at the request of the customer (free of charge)
- origin: European Union
THREADOLET 3/4''x3''-5'' NPT A105 cl.3000
- odgałęźnik stalowy do spawania
- atest 3.1
Pipe nipple 1'' NPT 150mm gat. A333
Pipe nipple 1/4'' NPT 75mm A106
- material: A106 (P265GH K18 ST.45.8 1.0405)
- certificate 3.1
12,9 ÷ 13,1
Coupling 2 1/2'' steel for welding
Pipe nipple 3/4'' NPT 75mm A106
- material: A106 (P265GH K18 ST.45.8 1.0405)
- certificate 3.1
26,3 ÷ 26,7
Reduction 2''x1 1/2'' NPT hexagonal nut-screw WZ
- stal A105 (P245GH P265GH P285GH)
- redukcja wysokociśnieniowa
- atest 3.1
Screw-in fitting 1/4'' NPT for pipe 10mm
Pipe nipple 1 1/2'' NPT 75mm A106
Pipe nipple 1/2'' BSPT Rc 50mm A106
Pipe nipple 1/2'' BSPT Rc 76mm A106
Pipe nipple 1/2'' BSPT Rc 150mm A106
Pipe nipple 3/4'' BSPT Rc 76mm A106
Pipe nipple 1'' BSPT Rc 76mm A106
Pipe nipple 1'' BSPT Rc 100mm A106
Pipe nipple 1 1/4'' BSPT Rc 76mm A106
Pipe nipple 1 1/2'' BSPT Rc 80mm A106
Pipe nipple 2'' BSPT Rc 100mm A106
Coupling 2'' BSP 206bar 304L
- high pressure coupling
- certificate 3.1
- orgin: European Union
Coupling 2 1/2" BSPT Class 3000 ASTM A105
- boiler steel for welding
- BSPT tapered thread (per ISO 7Rc)
- for high pressure up to 206 bar
- 3.1 certificate
Screw-in fitting 1/2'' NPT for pipe 12mm
- material: stainless steel
Coupling 3/4" BSP Stainless Steel 1.4571 / 316Ti PN50
Nipple 2'' BSPT Rc 150 mm A106 Steel
Nipple 1 1/2'' NPT 75 mm A106 Steel
THREADOLET 3/4'' x 1''–36'' NPT A105 Class 3000
- Steel branch outlet for welding
- 3.1 material certificate available on request (free of charge)

