77C Stainless Steel Coupling
Model # SP-77C
The Model SP-77C is designed for high pressure applications including RO and desalination systems. The SP-77C is available in strong and anti-corrosive alloys of 304,316,316L Stainless steel, Duplex CD3MN (2205), Super Duplex CE8MN, CE3MN (2507). The 77C features 304 or 316 bolts and silicone bronze heavy nuts to help prevent galling during repetitive use.
Available in sizes ¾” to 12” (DN20 to DN300) rated to a maximum working pressure of 1200 psi (83bar).(DN125 to DN300) rated to a maximum working pressure of 300 psi (21 bar).
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 254SMO(CK3MCuN) to A743
- Austenic 904L(CN2MCuN) to A351
- Type 316 to ASTM A743 CF8M
- Type 316L to ASTM A743 CF3M
Rubber Gaskets
See page 13 for all available options.
Nuts
- Type 316 stainless steel nuts ASTM A-193 B-8M
- Silicone bronze heavy duty nuts to ASTM B98 C65100
Bolts
- Type 316 stainless steel track bolts ASTM A-193 B-8M
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Providing the water treatment industry with high quality specialized products.
