gripring pipe restraint
Full circumferential pipe restraint spreads the restraining forces more evenly than those using radial bolts or pads. The GripRing uses a standard mechanical joint gasket and t-bolts. There are no radial bolts for the installer to forget to tighten. When the t-bolts on the gland are tightened, the GripRing restraint is engaged. The GripRing may be used at the full rated capacity of the pipe, including an allowance for pressure surges. The 'gap' in each GripRing is designed to completely close before a pipe can be excessively stressed.
Manufactured in the USA.
USE Provides full circumferential restraint of mechanical joints.
SIZES 4" - 12"
COMPATIBILITY Ductile iron, C900 and IPS PVC pipe (see catalog page for details).
WORKING PRESSURE Up to 350 psi.
NSF61 certified upon request.
MATERIALS
GLAND (FOLLOWER) Ductile (nodular) iron, meeting or exceeding ASTM A 536, Grade 65-45-12.
RING Ductile (nodular) iron, meeting or exceeding ASTM A 536, Grade 65-45-12. Heat treated using a proprietary process to assure proper penetration of rigid pipe materials.
GAP CAP Heavy gauge 304 stainless steel (10 and 12 inch only).
GASKET A standard MJ gasket is used with this fitting. See ANSI/AWWA C111/A21.11 for specifications. Transition gaskets may be used for steel (IPS) pipe size PVC.
BOLTS AND NUTS Standard MJ tee-bolts and nuts are used with this fitting. See ANSI/AWWA C111/A21.11 for specifications.
COATINGS AND COLORS Shop coat applied to the castings for corrosion protection in transit. Glands are yellow to distinguish them from standard MJ fittings. Rings are color coded BLACK for Ductile Iron size and RED for IPS.
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