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€88.05
€71.59
€3.90
€3.17
€1.29
€1.04
€0.29
€0.24
Coupling 2'' NPT 321 cl.3000
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Description
Coupling 2'' NPT 321 cl.3000
- size: 2'' (thread diameter is 56.4 ÷ 56.7mm)
- thread type: NPT (conical)
- material: stainless steel 321 (1.4541 SS321 AISI321)
- pressure class: 3000lbs (206bar)
- size W: 86mm
- size D: 76mm
- high pressure thick wall socket
- 3.1 certification on request (free of charge)
- origin: European Union

Other name: Coupling 2'' NPT 321 cl.3000 thick-walled coupler high-pressure 206bar stainless steel inox pipe acid resistant coupler 1.4541 SS321 AISI321
Information
Coupling 2'' 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 | 2'' |
| Thread Type – Connection 1 | NPT Thread |
| Connection 2 | 2'' |
| Thread Type – Connection 2 | NPT Thread |
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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 2'' NPT 75mm A106
- material: A106 (P265GH K18 ST.45.8 1.0405)
- certificate 3.1
59,9 ÷ 60,2
Pipe nipple 1 1/2'' NPT 200mm A106
- material: A106 (P265GH K18 ST.45.8 1.0405)
- certificate 3.1
Nipple 2'' BSP A105 cl.6000
- pressure class: 6000lbs (413 bar)
- atest 3.1
- origin: European union
Ball valve 2'' NPT 1000WOG carbon steel
- medium: woda, olej, gaz
- atest 3.1
Elbow 2" NPT A105 45° Class 3000 206bar
THREADOLET 2''x6'' NPT A105 cl.3000
- odgałęźnik stalowy do spawania
- atest 3.1
Coupling 5'' steel for welding
Coupling 3" NPT Class 3000 Stainless Steel 304L (1.4301)
- stainless steel coupling
- for high pressure: 206 bar
- 3.1 certification
- origin: European Union
Half coupling 1'' for welding
Half coupling 1/2'' for welding
Half coupling 2'' for welding
Stainless steel reduction nipple 2'' x 2 1/2'' 316
Stainless pipe nipple 2''x1/2'' BSP 316L
Sockolet 3/4" x 2'' - 2 1/2'' 316L cl. 3000
Tee 2''x1/2'' socket weld 304L cl.3000
- 2'‘x1/2’' high-pressure reducing tee
- 3.1 certificate
- Country of origin: European Union
Stainless pipe nipple 2'' 100mm
Stainless nipple 2'' 316
Cap 2'' stainless steel 316
- material: stainless steel 316
- certificate 3.1 at the request of the customer (free of charge)
Sockolet SW 2''x4'' 304L cl. 3000
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
Coupling 2 1/2'' steel for welding
Pipe nipple 1'' NPT 150mm gat. A333
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
Pipe nipple 2'' NPT 150mm A106
- material: A106 (P265GH K18 ST.45.8 1.0405)
- certificate 3.1
Screw-in fitting 1/2'' NPT for pipe 12mm
- material: stainless steel
Pipe nipple 1 1/2'' NPT 150mm A106
Coupling 3/4" BSP Stainless Steel 1.4571 / 316Ti PN50
THREADOLET 2''x3'' NPT 304L cl.3000
- odgałęźnik stalowy do spawania
- atest 3.1
THREADOLET 1.1/2''x3.1/2''-4'' NPT 304L cl.3000
- odgałęźnik stalowy do spawania
- atest 3.1
THREADOLET 2"x4'' NPT 304L cl.3000
- odgałęźnik stalowy do spawania
- atest 3.1
THREADOLET 3/4''x3''-5'' NPT 304L cl.3000
- odgałęźnik stalowy do spawania
- atest 3.1
THREADOLET 1/2''x3''-8'' NPT 304L cl.3000
- odgałęźnik stalowy do spawania
- atest 3.1
Sockolet SW 2''x6'' 304L cl. 3000
Sockolet SW 2''x8''-10'' 304L cl. 3000
Gasket KLINGERSIL C-4300 DN300 PN10
- Maximum operating temperature: +300°C
- Suitable media: hot water, oils, steam, hydrocarbons, and chemical compounds including methanol, ammonia, benzene, gasoline, wet chlorine, ethane, ethylene, Freon 12, Freon 22, and ethylene glycol.
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)

