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couplings for grooved-end pipe
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Fig. 7401
Rigidlok® Coupling
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 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 1/2" - 14")
LUBRICATION:
Standard Gruvlok
Gruvlok XtremeTM (Do Not use with Grade “L”)
The Fig. 7401 Rigidlok Coupling from Gruvlok provides a rigid,
locked in pipe connection. Rigidity is attained simply; it is
designed in.
The Fig. 7401 Rigidlok coupling is based on a technologically
advanced housing design that conforms to and grips the pipe.
With the Fig. 7401 there emerges a new generation of rigid
couplings.
Coupling installation is fast and easy, remove only one nut and
swing the housing over the gasket and into the grooves. The
exclusive Guidelok® feature automatically separates the grooved
pipe ends and guides the coupling into position as the bolts
are tightened. Precisely sized and oriented tines in the housing
key section frmly grip the pipe. The combination of these
designed in features produce a secure, rigid pipe joint connection.
This coupling is an ideal connector for service and applications
that require a rigid connection.
The Fig. 7401 Rigidlok Coupling is designed for use with roll
grooved or cut grooved standard weight and roll grooved
lightweight pipe, as well as with grooved-end fttings and valves.
The Rigidlok Coupling maintains a rigid connection with
support and hanging in conformance with applicable ANSI
B31.1 Power Piping Code, ANSI B31.9 Building Service Pipe Code
as well as NFPA 13 sprinkler systems.
The Fig. 7401 Rigidlok Coupling allows for working pressure
ratings to 750 psi (51.7 bar) when used on standard wall roll or
cut grooved pipe.
GL-2.10