Place of Origin: Tianjin, China

Model Number: 1N

Technics: Casting

Connection: groove end

Shape: Coupling Head  

Code: Round

Dimensions: 1 " (DN25)-24 " (DN600)

Design Standard: ISO6182, AWWA C606, GB 5135.11

Connection Standard: ASME B36.10, ASTM A53-A53M, ISO 4200

Working Pressure: 175PSI-500PSI

Application: water supply, fire-fighting ,air conditioning Temperature range: - 20 ℃-+180℃

DI GROOVD STANDARD FLEXIBLE COUPLINGType: 1N  

Standard flexible couplings are mainly used for grooved pipe connections where adjacent pipe ends allow a certain amount of relative angular displacement and corresponding axial rotation.    

Application :
Standard flexible couplings are suitable for medium and low pressure pipeline systems with nominal pressure 175-500 PSI, nominal size DN25-DN600, temperature range of - 20 ℃-+180 ℃, which are widely applied in water supply and drainage, fire-fighting, air conditioning, etc.  
Pipe Material:   Welded and seamless rolled steel pipes according to ASME B36.10, ASTMA53-A53M, ISO 4200, GB/T 21835
Surface Treatment

□Electrophoretic painting    

□Epoxy power painting  

□Hot-dip galvanizing  

□Black  

□Others would be available upon clients' detailed request

SPECIFICATIONS   Housing :ASTM A536, Ductile iron 65-45-12

Gasket :  

1. EPDM Gasket code E: Temperature:-34degree ~+110degree(-30~+230 F)  

Applicable media: water, gas, diluted acid(base), and other chemicals (excluding hydrocarbons) Note: strictly prohibit the use of oil and hydrocarbons.  

2.   NBR ,   code D:Temperature: -29 degree~+82 degree(-20~+180F);  

Applicable media: petroleum products, vegetable oils,mineral oils,etc.  

Note: strictly prohibit use with high temperature susstances.  

3, Silicone Rubber, code S: Temperature: -40℃~+177degree (-40~+350F). Applicable media: high temperature and dry air and some high temperature chemicals, drinking water and so on .

4,   Chloroprene Rubber,code LD: temperature : -32degree~+82 degree (-26~+180 F)  

Applicable media : sea water  

5   Fluororubber, code F:   Temperature: -20℃~+180 degree. Applicable media: hot oil, some chemical products, good oxidation resistance.  

Bolts/Nuts :     ANSI Heavy Hex Nut1.Material: SAE J995 2.2.Thread: ANSI B 1.1-1982, class 2B.   3.Surface Treatment: Zinc electroplated per ASTM B633 CLASS FE/ZN5 TYPE Ⅲ , thickness ≥ 5μm per class SC1.

Metric Heavy Hex Nut  

1. Material: ISO 898-2:1992   GB/T3098.2-2000 Class 8.  

2.Thread: ISO 261, tolerance 6h for M10 & M12, 7h for M16 and above.  

3.Surface Treatment: Zinc Electroplated followed by a yellow chromate dip per ISO 2081 FE/ZN5, ISO4520 CLASS 1A.  

Hexagon Flange Nut: Dimension according to DIN6923  

ANSI Oval Neck Track Bolt  

1.Material: SAE J429 5.  

2.Thread: UNC thread per ANSI B 1.1 Class 2A.  

3.Surface Treatment: Silver chromate electroplated per ASTM B633 CLASS FE/ZN5 TYPE Ⅲ, thickness ≥ 5μm per class SC1.  

Metric Oval Neck Track Bolt  

1. Material: ISO 898-1: 1992   GB/T3098.1-2000 Class 8.8.  

2.Thread: ISO metric thread per ISO 261, tolerance 6h.  

3.Surface Treatment: Yellow chromate electroplated per ISO 2081 FE/ZN5 ISO4520 CLASS 1A.