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couplings for grooved-end pipe
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Fig. 7012
Gruvlok Flanges
The Gruvlok® Fig. 7012 Flange allows direct connection of Class
125 or Class 150 fanged components to a grooved piping
system. The two interlocking halves of the 2" thru 12" sizes of
the Gruvlok Flange are hinged for ease of handling, and are
drawn together by a latch bolt which eases assembly on the
pipe. Precision machined bolt holes, key and mating surfaces
assure concentricity and fatness to provide exact ft-up with
fanged, lug, and wafer styles of pipe system equipment. A
specially designed gasket provides a leak-tight seal on both
the pipe and the mating fange face.
The 14" thru 24" sizes of the Gruvlok Fig. 7012 Flange are cast in
four segments. A sleek profle gasket design allows quick and
easy assembly of the Gruvlok Flange onto the pipe.
All Gruvlok Fig. 7012 Flanges have designed-in anti-rotation
tines which bite into and grip the sides of the pipe grooves to
provide a secure, rigid connection.
The Gruvlok Fig. 7012 Flange requires the use of a steel adapter
insert when used against rubber faced surfaces, wafer/lug
design valves and serrated or irregular sealing surfaces. In
copper systems a phenolic adapter insert is required, in place
of the steel adapter insert. (See Installation and Assembly
Instructions Section or contact your Anvil Rep. for details.)
MATERIAL SPECIFICATIONS
LATCH BOLT/NUT (2" - 12")
SEGMENT BOLT/NUT (14" - 24"):
Heat treated, zinc electroplated, carbon steel oval neck track bolts con-
forming to ASTM A 183 and zinc electroplated heavy hex nuts of carbon
steel conforming to ASTM A 563 Grade A or Grade B, or J995 Grade 2.
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), Red (optional)
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.
LUBRICATION:
Standard Gruvlok
Gruvlok XtremeTM (Do Not use with Grade “L”)
Sizes 2" - 12"
Sizes 14" - 24"
GL-2.10