M Type Galvanized Carbon steel Press Fitting - Couplings

Galvanized Carbon Steel Press Fittings - Coupling

Equal coupling

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FCA: EURO1.3-37/pcs

Min. order: 200pcs equal coupling

Supply ability: 10000pieces per month

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Shipping: LCL/FCL by sea, by air, DHL, TNT, FEDEX.

Price term: EXW, FCA, FOB, CNF, CIF.

Payment: TT, LC, VISA, MASTERCARD, WESTERN UNION.

Our galvanized press fitting pipeline is used for heating supply, chilled water, compressed air and fire sprinkler systems.

Low cost of labor

Security of hygiene

Reliability of the joints

Resistance to corrosion

Easy and quick way of laying

Compatible of press fitting system

Hydro thermo sanitary applications

Press fitting system made by best material

Coweth long-term experience in stainless pipeline industry

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Press system: press galvanized carbon steel: Design (compression couplings, press type): press galvanized steel tubes are thin-walled precision tubes.

The press fitting end is annularly shaped as “U” type groove bead with O ring sealing inside. When assembling, the pipes inserts into the fittings, then pressed by professional press tools,

to make the joint inside the “U” type groove reducing to final hexagon, resulting strong connecting strength, meanwhile achieving the sealing function by the deformation of the O ring.

Press Galvanized Steel Tube

It depends on sealing material according to manufacturer’s recommendation.

• EPDM black: -40/135 (150peak)
• NBR yellow: -30/100 (125peak)
• Viton Green: 20/200 (230 peak)           
• 

1. Tubes:Galvanized and polypropylene coated unalloyed steel E195(1.0034) acc.to EN10305. Externally and complete galvanized versions E195(1.0034) and E190(1.0031) acc.to EN10305.   

2. Fittings: Carbon steel, galvanized E195 (1.0034/RSt34-2) acc. EN10305.

3. O-rings: EPDM black, NBR Yellow, Viton Green and Viton Grey

We not only test every piece of fitting for air test, but also carry out all kinds of tests according to standard requirements as tightness test, vibration test, pressure pulsation test, burst pressure test, pull-out test, vacuum test and fire-endurance test.

The press fittings with O-ring may be used for class III piping systems: Inert gas: water seal effluent lines, scrubber effluent lines, main lines 2+5, distributions lines 5; Flammable fluids ( flash point ＞60℃)：Cargo oil lines, fuel oil lines, lubricating oil lines, hydraulic oil, thermal oil; Fresh water: cooling water system, drainage water system.

We not only test every piece of fitting for air test, but also carry out all kinds of tests according to standard requirements as tightness test,

vibration test, pressure pulsation test, burst pressure test, pull-out test, vacuum test and fire-endurance test.

1.Tightness of joints, internal pressure    

2 assemblies of one size

2. Temperature cycling test

a. Sizes ≤63 outside diameter

For pipes with outside diameter ≤ 28 mm A is 555^±2 mm; For pipes with outside diameter > 28 mm A is 950^±2 mm; B is the length needed to bring the faces of the male thread couplers in line

b.  Sizes > 63 mm outside diameter          

A: 200 mm

3. Bending cycling                          

A is the length needed to bring the faces of the male thread couplers in line

The press fittings with O-ring may be used for class III piping systems:

Inert gas: water seal effluent lines, scrubber effluent lines, main lines 2+5, distributions lines 5;

Flammable fluids ( flash point ＞60℃)：Cargo oil lines, fuel oil lines, lubricating oil lines, hydraulic oil, thermal oil;

Fresh water: cooling water system, drainage water system.