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couplings for grooved-end pipe
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Fig. 7400
Rigidlite® Coupling
The Fig. 7400 Rigidlite Coupling from Gruvlok is specially
designed to provide a rigid, locked-in pipe connection to meet
the specifc demands of rigid design steel pipe and copper
tube systems. Fast and easy swing-over installation of the
rugged lightweight housing produces a secure, rigid pipe joint.
The Fig. 7400 Rigidlite Coupling is UL/ULC Listed and FM
Approved for 300 psi (20.7 bar) with roll grooved or cut
grooved steel pipe prepared in accordance with Gruvlok
grooving specifcations. Figure 7400 Rigidlite Coupling is
available with the Grade “E” EPDM, “C” Style Gasket intended
for use with the Gruvlok Advanced Copper Method.
MATERIAL SPECIFICATIONS
ANSI BOLTS & HEAVY HEX NUTS:
Heat treated, oval neck track head bolts conforming to ASTM A 183
Grade 2 with a minimum tensile strength of 110,000 psi and heavy hex
nuts of carbon steel conforming to ASTM A 563 Grade A or Grade B, or
J995 Grade 2. Bolts and nuts are provided zinc electroplated as standard.
METRIC BOLTS & HEAVY HEX NUTS:
Heat treated, zinc electroplated oval-neck track head bolts made of
carbon steel with mechanical properties per ISO 898-1 Class 8.8. Hex
nuts and bolts are zinc electroplated followed by a yellow chromate dip.
STAINLESS STEEL BOLTS & NUTS:
Stainless steel bolts and nuts are also available. Contact a Gruvlok
Representative for more information.
HOUSING:
Ductile Iron conforming to ASTM A 536, Grade 65-45-12.
COATINGS:
Rust inhibiting paint Color: ORANGE (standard)
Hot Dipped Zinc Galvanized (optional)
Other Colors Available (IE: RAL3000 and RAL9000)
For other Coating requirements contact a Gruvlok Representative.
GASKETS: Materials
Properties as designated in accordance with ASTM D 2000
Grade “E” EPDM (Green color code) NSF 61 Certifed
-40°F to 230°F (Service Temperature Range)(-40°C to 110°C)
Recommended for water service, diluted acids, alkalies solutions, oil-
free air and many chemical services.
NOT FOR USE IN PETROLEUM APPLICATIONS.
Grade “T” Nitrile (Orange color code)
-20°F to 180°F (Service Temperature Range)(-29°C to 82°C)
Recommended for petroleum applications. air with oil vapors and
vegetable and mineral oils.
NOT FOR USE IN HOT WATER OR HOT AIR
Grade “O” Fluoro-Elastomer (Blue color code)
-20°F to 300°F (Service Temperature Range)(-29°C to 149°C)
Recommended for high temperature resistance to oxidizing acids,
petroleum oils, hydraulic fuids, halogenated hydrocarbons and
lubricants.
Grade “L” Silicone (Red color code)
-40°F to 350°F (Service Temperature Range)(-40°C to 177°C)
Recommended for dry, hot air and some high temperature chemical
services.
GASKET TYPE:
Standard C Style
Flush Gap (1" - 8")
LUBRICATION:
Standard Gruvlok
Gruvlok XtremeTM (Do Not use with Grade “L”)
DN 50 and DN 200
sizes are VdS approved.
GL-2.10