Zhejiang Parkson Water Industry Equipment Stock Co., Ltd.
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PASS - Model 77A -Stainless Steel Heavy Duty Flexible Coupling
The Model 77A is designed for high pressure applications including RO and desalination systems. The 77A is available in strong and anti-corrosive alloys of 304,316,316L Stain less steel , Duplex CD3MN(2205), Super Duplex CE8MN, CE3MN(2507). The 77A features 304 or 316 bolts and silicone bronze heavy nuts to help prevent galling during repetitive use.Most popular related searches
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Sizes-Inches & Rated working pressure
3/4” to 8” (DN20 to DN200) - 1500psi(105bar)
10” to 12” (DN250 to DN300) - 1200psi(83bar)
MODEL 77A MATERIAL SPECIFICATION
Housings:
- Super duplex 2507(CE3MN)to ASTM A890 Grade5A
- CE8MN to ASTM A890 Grade 2A
- Duplex 2205(CD3MN)to ASTM A890 Grade4A
- Austenic 254 SMO(CK3MCuN) to A743
- Austenic 904L(CN2MCuN) to A351
- Type 316 to ASTM A743 CF8M
- Type 316L to ASTM A743 CF3M
Rubber Gaskets:
The gasket seals is C-shaped, made of standard gasket EPDM (ethylene propylene diene monomer) for cold water, hot water, dilute acid, oil-free air and multiple chemical product (-30~110℃).It is not suitable for medium like petroleum.
Bolts&Nuts:
- Type 304 stainless steel track bolts and nuts to ASTM F-593
- Type 316 stainless steel track bolts and nuts to ASTM F-593