The Gruvlok® Fig. 7012 Flange allows direct connection of Class 125 or Class 150 flanged components to a grooved piping system. The two inter- locking 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 flatness to provide exact fit-up with flanged, lug, and wafer styles of pipe system equipment. A specially designed gasket provides a leak-tight seal on both the pipe and the mating flange face.
Working pressure ratings shown are for reference only and are based on Schedule 40 pipe.
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. (See Installation and Assembly Instructions Section or contact your Anvil Rep. for details.)
Material Specifications
HOUSING:
- Ductile Iron conforming to ASTM A-536, Grade 65-45-12
LATCH BOLT/NUT (2"-12"):
- Heat treated, zinc electroplated, carbon steel oval neck track bolts conforming 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 and bolts are zinc electroplated followed by a yellow chromate dip.
COATINGS:
- Rust inhibiting paint Color: ORANGE (standard)
- Hot Dipped Zinc Galvanized (optional)
- Other available options: Example: RAL3000 or RAL9000 Series
For other coating requirements contact an Anvil Representative.
LUBRICATION:
- Standard Gruvlok
- Gruvlok Xtreme™ required for dry pipe systems and freezer applications
GASKETS:
Materials Properties as designated in accordance with ASTM D-2000.
- Grade “E” EPDM (Green color code)
-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.
7012* Flange Submittal
Flanged Seal Rings - for use with 7012/7013 Flanges