Trying to find the best supplier on DI GROOVED LIGHT-DUTY RIGID COUPLING ? Tianjin Decho can provide you DI GROOVED HEAVY DUTY RIGID COUPLING with lowest price and best quality , widely used in Asia, Middle East , South America and South Africa countries. We will be your best supplier on coupling products !
Light-duty rigid couplings are the short style of the rigid couplings, which are mainly used for grooved pipeline connection. At the joint part, the adjacent pipe ends are not allowed to have relative angular displacement and corresponding axial rotation.
Light-duty rigid couplings are the short style of the rigid couplings, which are mainly used for grooved pipeline connection. At the joint part, the adjacent pipe ends are not allowed to have relative angular displacement and corresponding axial rotation.
Dimensions:
3″(DN80)– 10″(DN250)
Design Standard:
ISO6182, AWWA C606, GB 5135.11
Connection Standard:
ASME B36.10, ASTM A53-A53M, ISO 4200
Working Pressure:
175-500 PSI
Application:
Light-duty rigid couplings are mainly suitable for medium and low pressure pipeline systems with nominal pressure 175-350 PSI, nominal size DN80-DN250, temperature range of – 20 ℃-+180℃, which are widely applied in water supply and drainage, fire-fighting, air conditioning, etc.
Material of Pipe :
Welded and seamless rolled steel pipes according to ASME B36.10, ASTM A53-A53M, ISO 4200, GB/T 21835
Specification of Material
ASTM A536, Ductile iron according to 65-45-12. The nodularity is more than 90%, ensuring excellent physical and mechanical properties
Surface Treatment:
□Electrophoretic painting
□Spray molding
□Hot-dip galvanizing
□Bare metal（Black）
□Others would be available upon clients’ detailed request
2. SPECIFICATIONS
Housing:
ASTM A536, Ductile iron 65-45-12 Gasket:
1、EPDM Gasket，code E：
Temperature：-34℃～+110℃ （-30～+230℉）；
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℃～+82℃ （-20～+180℉）;
Applicable media: Petroleum products, vegetable oils, mineral oils, etc. Note: strictly prohibit use with high temperature substances.
3、Silicone Rubber, code S：
Temperature: -40℃～+177℃ （-40～+350℉）
Applicable media: High temperature and dry air and some high temperature chemicals, drinking water and so on.
4 、 Chloroprene Rubber，code LD： Temperature：-32℃～+82℃ （-26～+180℉） Applicable media: sea water
5 、 Fluororubber, code F： Temperature: -20℃～+180℃
Applicable media: Hot oil, some chemical products, good oxidation resistance. Bolts/Nuts:
ANSI Heavy Hex Nut
1.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.
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。
