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The Figure 7401SS Rigid Coupling is a Stainless Steel coupling made of ASTM A-743/A743M cast stainless steel which is the cast equivalent to 316 Stainless Steel. It is designed for installation on grooved Stainless Steel Schedules 10 and 40 pipe and grooved fittings. The stainless steel material is suitable for a variety of aggressive corrosive environments. The Figure 7401SS provides a rigid joint connection by firmly gripping along the circumference of the pipe grooves. It is capable of pressures up to 750 psi (41.4 bar) depending on pipe size and wall thickness.
7401SS-HR
Unit of Measure
Items 7401SS-HR
1 1/4-7401SS-EPDM
7401SS 1 1/4 IMP 316SS EP GSKT RIGID CPLG 		7401SS-HR
1 1/2-7401SS-EPDM
7401SS 1 1/2 IMP 316SS EP GSKT RIGID CPLG 		7401SS-HR
2-7401SS-EPDM
7401SS 2 IMP 316SS EP GSKT RIGID CPLG 		7401SS-HR
2 1/2-7401SS-EPDM
7401SS 2 1/2 IMP 316SS EP GSKT RIGID CPLG 		7401SS-HR
3-7401SS-EPDM
7401SS 3 IMP 316SS EP GSKT RIGID CPLG
Industry Standards/Certifications N/A NSF/ANSI 61
Type N/A Stainless Steel Rigid Coupling
Style N/A Grooved
Nominal Size N/A 1 1/4 in N/A 1 1/2 in N/A 2 in N/A 2 1/2 in N/A 3 in
Housing Material N/A Type 316L, ASTM A 743/A 743M – Standard specification for castings, iron-chromium, iron-chromium-nickel, corrosion resistant; for general application Grade CR-8M.
Coatings N/A Plain
Gasket Material N/A EPDM
Gasket Type N/A Standard C Style
Bolt Material N/A Stainless steel bolts are metric track head bolts conforming to ASTM A 193M Class 2, Type 316 Grade B8M. Bolts are coated with an anti-galling agent.
Heavy Hex Nut N/A Class 2 stainless steel nuts are heavy hex nuts conforming to ASTM A 194M, Type 316, Grade 8M.
Coupling Bolts Size N/A 3/8 x 2 1/4 in N/A 3/8 x 2 1/4 in N/A 3/8 x 2 1/4 in N/A 3/8 x 2 1/4 in N/A 1/2 x 3 in
Coupling Bolts Qty. N/A 2
Lubrication N/A Standard Gruvlok, Gruvlok Xtreme™
Application N/A Recommended for water service, diluted acids, alkaline solutions, oil-free air and many other chemical services. NOT FOR USE IN PETROLEUM APPLICATIONS. For hot water applications the use of Gruvlok Extreme Temperature lubricant is recommended.
Min. Service Temperature Range N/A -40 ºF
Max. Service Temperature Range N/A 250 ºF
Max. Working Pressure1 N/A 750 psi N/A 750 psi N/A 750 psi N/A 600 psi N/A 600 psi
Max. End Load2 N/A 1.623 lb N/A 2.127 lb N/A 3.323 lb N/A 3.895 lb N/A 5.772 lb
Max. End Gap3 N/A 0.06 in N/A 0.08 in N/A 0.13 in N/A 0.13 in N/A 0.13 in
Product Number N/A 0390065300 N/A 0390065302 N/A 0390065304 N/A 0390065306 N/A 0390065308
UPC Code N/A 65280804737 N/A 65280804738 N/A 65280804739 N/A 65280804740 N/A 65280804741
HPH Code N/A
Weight N/A 2.00 lb N/A 2.10 lb N/A 2.5 lb N/A 3.20 lb N/A 4.30 lb
  • 1 Maximum Pressure and End Load are total from all loads based on schedule 40 stainless steel pipe. Pressure ratings and end loads may differ for other pipe materials and/or wall thicknesses. Contact an Anvil Sales Representative for details.
  • 2 Maximum Pressure and End Load are total from all loads based on schedule 40 stainless steel pipe. Pressure ratings and end loads may differ for other pipe materials and/or wall thicknesses. Contact an Anvil Sales Representative for details.
  • 3 Maximum available gap between pipe ends. Minimum gap = 0. Max End Gap and Deflection is for cut grooved standard weight stainless steel pipe. Values for roll grooved pipe will be half that of cut grooved.