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Product of the Day
€0.27
€0.22
€3.61
€2.94
€81.51
€66.27
Coupling 1/2" S355J2 cl.3000 NPT
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Description
Coupling 1/2" S355J2 cl.3000 NPT
- thread: G1/2''
- thread type: tapered NPT
- coupler threaded on both sides
- pressure class: 3000
- material: carbon steel S355J2 (low temperature, high pressure)
- steel for welding
- size B = 28mm
- size L = 49mm
- application: industry, export machinery manufacturing, pressure installations, hydraulics, tanks
- certificate 3.1 on request

Other name: Coupling 1/2" S355J2 cl.3000 NPT threaded fitting high-pressure adapter NPT tapered thread welding socket straight coupling carbon coupling
Information
Coupling 1/2" S355J2 cl.3000 NPT - 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 A105 - is a carbon steel undoubtedly often used in piping components, flanges and fittings. This grade of carbon steel is primarily used for ambient and higher temperatures, and to work in pressure installations. Good machinability, as with any low-alloy steel. Noteworthy is the fact that it is a weldable steel.
Application: grade used for oil and gas transmission, petrochemicals, power plants, pressure vessels, etc.
Properties similar to grades: 1.0460 C22.8 P245GH P265GH P285GH S235JR
The couplings ensure the safety and durability of the system.
Additional information:
- grade on the A105 certificate (P280GH, P245GH according to EN10222-2)
- size, class, grade, melt are stamped on the coupler
- on the certificate PED 97/23/CE & PED 2014/68/EU
- execution according to ASME/18 -ASTM/14 SA/A105 Sect II Part A
- thread is not made through the whole coupler, with NPT thread this is not feasible
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
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Cap 3'' NPT A105 3000lbs
- material: carbon steel
- certificate 3.1 at the request of the customer (free of charge
- origin: European Union
Tee 2'' NPT cl.3000 A105
- material: steel for welding A105 (P245GH, P280GH)
- pressure class: 3000lbs (206bar)
- certificate 3.1
Steel nipple 3/8'' NPT- 1/2'' BSP
Steel nipple 1/2'' BSP - NPT
- złącze wysokociśnieniowe
Cap 1/2'' NPT 316L cl. 3000
- stainless steel
- acc. to ANSI B16.11
- certificate 3.1 at the request of the customer (free of charge)
Cap 1/4'' NPT 316L cl. 3000
- stainless steel
- acc. to ANSI B16.11
- certificate 3.1 at the request of the customer (free of charge)
Cap 3/4'' NPT 316L cl. 3000
- stainless steel
- acc. to ANSI B16.11
- certificate 3.1 at the request of the customer (free of charge)
Nipple 1/4'' NPT stainless 316L 206bar
- stainless fitting
- certificate 3.1
Nipple 1/2'' NPT stainless 316L 206bar
- stainless fitting
- certificate 3.1
Nipple 3/4'' NPT stainless 316L 206bar
- stainless fitting
- certificate 3.1
Nipple 1'' NPT stainless 316L 206bar
- stainless fitting
- certificate 3.1
Pipe nipple 1'' NPT 100mm A106
Pipe nipple 3/4'' NPT 100mm A106
Pipe nipple 1/2'' NPT 100mm A106
- material: A106 (P265GH K18 ST.45.8 1.0405)
- certificate 3.1
Pipe nipple 1 1/2'' NPT 100mm A106
- material: A106 (P265GH K18 ST.45.8 1.0405)
- certificate 3.1
Coupling 2 1/2'' NPT A105 cl.3000
- steel for welding
- certificate 3.1 (free of charge)
- origin: European Union
Union 1'' NPT MT FT 316L cl.3000
- certificate 3.1 at the request of the customer (free of charge)
- origin: European Union
Nipple union 1'' NPT A350 206bar
- zakres stosowania temperatur: od -46°C do +343°C
- próba udarności w temp. - 46°C
- gatunek na ateście SA/A350 LF2 (stal o zbliżonych właściwościach: P355NL1 P355NH P355QH L360NB 1.0566 1.0562 A420-WPL6 A333-Gr.6 StE 355)
Nipple union 3/8'' NPT A105 cl.3000
- śrubunek stalowy
- atest 3.1
- pochodzenie: Unia Europejska
Elbow 1'' NPT female thread
Reduction 1''-1/2'' NPT hexagonal nut-screw WZ
Reduction 2''x 1'' NPT hexagonal nut-screw WZ
Coupling 1''-1/2'' socket weld A105 cl.3000
- mufa do spawania
- łącznik do spawania rur
- atest 3.1
Coupling 1 1/2'' -2'' socket weld A105 cl.3000
- mufa do spawania
- łącznik do spawania rur
- atest 3.1
Coupling 1'' - 1/2'' socket weld A350 LF2 cl.3000
Coupling 1''-3/4'' socket welt A105 cl.3000
- mufa do spawania
- łącznik do spawania rur
- atest 3.1
Coupling 1''- 1 1/4'' socket weld A105 cl.3000
- mufa do spawania
- łącznik do spawania rur
- atest 3.1
Reduction coupling 3/4" - 1'' socket weld 316L cl. 3000
Coupling 1''x1 1/4'' socket weld 316L cl. 3000
Coupling 3/8''-1/2'' socket weld A105 cl.3000
- mufa do spawania
- łącznik do spawania rur
- atest 3.1
Stainless reduction connector 1/2'' - 1/4'' 304
Coupling 1'' BSP A350 LF2 cl.3000
- high pressure coupling
- certificate 3.1
- orgin: European Union
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 2 1/2'' x 1 1/2'' 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 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
Steel reduction coupling 1/4''x1/2'' NPT
Steel nipple 1/4'' NPT
Steel nipple 1/2'' NPT
Reduction coupling 1/2'' x 3/4'' NPT cl.3000 A105
Reduction nipple 1/2''-1'' NPT
Nipple 1/4'' NPT A350 LF2 cl.3000
- steel A350 LF2 (P355NL1 P355NH L360NB A420 1.0566 STE355)
- certificate 3.1 (free of charge)
Reduction 1/2''x1/4'' NPT hexagonal nut-screw WZ
- stal A105 (P245GH P265GH P285GH)
Nipple 1/2'' NPT A350 LF2 cl.3000
- steel A350 LF2 (P355NL1 P355NH L360NB A420 1.0566 STE355)
- certificate 3.1 (free of charge)
Nipple 3/4'' NPT A350 LF2 cl.3000
- steel A350 LF2 (P355NL1 P355NH L360NB A420 1.0566 STE355)
- certificate 3.1 (free of charge)
Nipple 1'' NPT A350 LF2 cl.3000
- steel A350 LF2 (P355NL1 P355NH L360NB A420 1.0566 STE355)
- certificate 3.1 (free of charge)
Stainless pipe nipple 2'' 304L NPT 100mm
Stainless steel reduction nipple 2'' x 2 1/2'' 316
Coupling 1 1/4'' steel for welding
Coupling 2 1/2'' 316L NPT cl.3000
- certificate 3.1
- orgin: European Union
Pipe nipple 2'' NPT 100mm A106
Reduction 3''x2'' NPT hexagonal nut-screw
- stal A105 (P245GH P265GH P285GH)
- redukcja wysokociśnieniowa
- atest 3.1
Reduction coupling 2'' x 1'' NPT 3000 A105
Measuring connection 1/8" NPT S12,65x1,5
Reduction nipple 3/8''- 1/2'' NPT
Screw-in fitting 1/4'' NPT for pipe 15mm
Coupling 1/4'' x 1'' NPT 316L cl.3000
- High-Pressure coupling
- Certificate 3.1
Reducer bush 3/8''x3/4'' NPT 316L Hex
- stainless steel 316L (1.4404 A182)
- orgin: European Union
Coupling 1/2'' x 1'' NPT 316L cl.3000
- High-Pressure coupling
- Certificate 3.1
Nipple 3'' NPT cl. 3000 A105 fitting
Nipple 4'' NPT cl. 3000 A105 fitting
Ball valve 1/2'' NPT PN100 A105 316
- atest 3.1
Ball valve 3/4'' NPT PN100 A105 316
- stainless steel
- certificate 3.1
- origin: European Union
Ball valve 1'' NPT PN100 A105 316
- atest 3.1
Ball valve 1/2'' NPT 316L PN100
Half coupling 2" NPT cl. 3000 A105
Screw-in fitting 1/2'' NPT for pipe 15mm
- material: stainless steel
Screw-in fitting 1/2'' NPT for pipe 10mm
- material: stainless steel
Stainless nipple 3/4'' 316
- nypel z atestem 3.1
- ciśnienie: 206bar
Plug 3/8'' NPT stainless 316L
Plug 1 1/2'' NPT stainless 316L
Pipe nipple 1 1/4'' NPT 100mm A106
- rozmiar: 1.1/4'' (średnica gwintu wynosi 41,4 ÷ 42mm)
- gwint: NPT (stożkowy amerykański)
- długość: 100mm
Plug 1 1/2'' NPT stainless 304L
Plug 2'' NPT stainless 304L
Plug 4'' NPT stainless 304L
Tee 1 1/2'' NPT cl.3000 A105
- material: steel for welding A105 (P245GH, P280GH)
- pressure class: 3000lbs (206bar)
- certificate 3.1
Tee 1 1/4'' NPT cl.3000 A105
- material: steel for welding A105 (P245GH, P280GH)
- pressure class: 3000lbs (206bar)
- certificate 3.1
Tee 1'' NPT cl.3000 A105
- material: steel for welding A105 (P245GH, P280GH)
- pressure class: 3000lbs (206bar)
- certificate 3.1
Reduction 1 1/4''x1 1/2'' NPT hexagonal nut-screw WZ
- redukcja wysokociśnieniowa 5/4''x3/2''
- atest 3.1
Reduction 1''x1 1/4'' NPT hexagonal nut-screw WZ
- redukcja wysokociśnieniowa 1''x5/4''
- atest 3.1
Reduction 1/2''x1 1/4'' NPT hexagonal nut-screw WZ
- redukcja wysokociśnieniowa 1/2''x5/4''
- atest 3.1
Plug 1'' NPT stainless 321
- stainless steel 321 321 1.4541 SS321 AISI321
- certificate 3.1 at the request of the customer (free of charge)
Coupling 2'' NPT 321 cl.3000
- mufa wysokociśnieniowa (206bar)
- atest 3.1
Coupling 1'' NPT 321 cl.3000
- mufa wysokociśnieniowa (206bar)
- atest 3.1
Reducer bush 3/4''x1/4'' NPT 316L Hex
- stainless steel 316L (1.4404 A182)
- orgin: European Union
Reduction nipple 1 1/4''x1 1/2'' NPT 206bar A105
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
Coupling 2''- 3'' socket weld A105 cl.3000
- mufa do spawania
- łącznik do spawania rur
- atest 3.1
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
Butt weld elbow 42,4x3,6mm P265GH
Elbow 1" socket weld A105 cl.3000 45 degrees
- łącznik do spawania rur
- atest 3.1
Blanking flange DN300 PN16 S235JR
Butt weld elbow 60,3x3,2mm P265GH
Reducer 48,3x2,6/33,7x2,6 P235GH
Reducer 60,3x42,4x4,0x3,6 P265GH
Butt weld elbow 60,3x3,6mm P265GH
Welding tee 42,4x3,6 P265GH
Pipe nipple 2'' BSP S235JR
Reduction 48,3x2,0 26,9x2,0mm stainless
Butt weld elbow 108x4mm 5D P265GH
Reduction WELDOLET XS 2'' x 3'' - 4'' BW A105
Weld-on pipe nipple 1 1/4'' 316L
Tee 1 1/4''x1'' socket weld 304L cl.3000
- trójnik redukcyjny wysokociśnieniowy 5/4''x1''
- atest 3.1
- pochodzenie: Unia Europejska
Welded elbow 42,4x2,6 P235TR
Welded elbow 48,3x2,6 P235TR
Plug 1/2'' NPT A350 LF2 cl.3/6000
- certificate 3.1 at the request of the customer (free of charge)
- origin: European Union
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
Stainless steel reduction nipple 1 1/4'' x 1/2'' 316
Stainless steel reduction nipple 1 1/4'' x 3/4'' 316
Stainless steel reduction nipple 1 1/4'' x 1'' 316
Stainless steel reduction nipple 1 1/2'' x 3/4'' 316
Stainless steel reduction nipple 1 1/2'' x 1'' 316
Stainless steel reduction nipple 1 1/2'' x 1 1/4'' 316
Stainless steel reduction nipple 2'' x 1'' 316
Stainless steel reduction nipple 2'' x 1 1/4'' 316
Stainless steel reduction nipple 2'' x 1 1/2'' 316
Stainless steel reduction nipple 3'' x 2'' 316
Pipe nipple 1'' NPT 150mm gat. A333
Stainless steel reduction nipple 3'' x 2 1/2'' 316
Stainless steel reduction nipple 4'' x 3'' 316
Coupling 2 1/2'' steel for welding
Reduction 2''x1 1/2'' NPT hexagonal nut-screw WZ
- stal A105 (P245GH P265GH P285GH)
- redukcja wysokociśnieniowa
- atest 3.1
Coupling 2" socket weld A105 cl.3000
Pipe nipple 2 1/2'' NPT 100mm A106
Pipe nipple 1 1/4'' NPT 100mm A106
Screw-in fitting 1/4'' NPT for pipe 10mm
Pipe nipple 1 1/2'' NPT 75mm A106
Elbow 1/2'' NPT 304L cl.3000 206bar
- certificate 3.1 at the request of the customer (free of charge)
- origin: European Union
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
Screw-in fitting 1/2'' NPT for pipe 12mm
- material: stainless steel

