Gripper™ Restraining Gaskets

Used to instantly restrain Tyton Joint®¹ and American Fastite®² push-on ductile iron pipe, valves, and fittings. The gasket design includes stainless steel teeth that automatically provide restraint upon installation. These gaskets eliminate nuts, bolts, clamps, thread rods, retainer glands, concrete thrust blocks and expensive labor associated with conventional restraining methods.

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1. "Tyton® & Field Lok® are registered trademarks and properties of United States Pipe and Foundry Company, LLC. Gripper Gasket LLC is not affiliated in any way with the United States Pipe and Foundry Company LLC."

2. "American Fastite® is a registered trademark of American Cast Iron Pipe Company. Gripper Gasket LLC is not affiliated in any way with American Cast Iron Pipe Company."

Gripper Gasket GG Series Installation Instructions

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Gripper Gasket FT Series Installation Instructions

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Gripper Gasket GG Series SubmittalViewGripper Gasket FT Series SubmittalView
Gripper Gasket TrifoldView

Certified to NSF/ANSI 61 by NSF International

Boltless restraining gaskets (similar to Field Lok 350®)¹ shall be rated 350 p.s.i. and tested in accordance with ANSI/AWWA C111/a21.11

Styrene Butadiene Rubber (SBR) is our standard rubber compound.

Made in the U.S.A.

Gripper™ Restraining Gaskets are manufactured in the U.S.A.

  1. Made in the U.S.A.

GG Series

A-PIPE OD B-PIPE OD C-DEPTH OF SOCKET MAX JOINT DEFLECTION ANGLE WEIGHT MAX Coupling OD Range min MAX Coupling OD Range max Larger Pipe ID min Larger Pipe ID max Smaller Pipe ID min Smaller Pipe ID max Sewer Main Wall Thickness Lateral Pipe min Lateral Pipe max Core Drilling min Sewer Main Core Break min Sewer Main Core Break max Foam Qty Required DIM. A DIM B DIM C DIM D DIM E DIM F Weight Pressure Resistance GG Part Part
3.965.463.0050.25GG317030
4.806.523.1550.40GG417040
6.908.663.3850.57GG617060
9.0510.823.6951.25GG817080
11.1012.913.7551.50GG1017100
13.2015.053.7552.00GG1217120
15.3017.675.0044.25GG1417140
17.4019.795.0045.00GG1617160
19.5021.915.0045.33GG1817180
21.6024.035.502.56.00GG2017200
25.8028.215.952.57.00GG2417240

FT Series

A-PIPE OD B-PIPE OD C-DEPTH OF SOCKET MAX JOINT DEFLECTION ANGLE WEIGHT MAX Coupling OD Range min MAX Coupling OD Range max Larger Pipe ID min Larger Pipe ID max Smaller Pipe ID min Smaller Pipe ID max Sewer Main Wall Thickness Lateral Pipe min Lateral Pipe max Core Drilling min Sewer Main Core Break min Sewer Main Core Break max Foam Qty Required DIM. A DIM B DIM C DIM D DIM E DIM F Weight Pressure Resistance GG Part Part
4.806.403.3150.50FT415005
6.908.603.3850.74FT615010
9.0510.963.7551.25FT815030
11.1013.123.7551.50FT1015040
13.2015.223.7551.80FT1215050

GG Series

GG PartPartDescriptionCase Qty.Case Wt.
GG3170303" Tyton Joint®¹ ductile iron pipe, valves & fittings10.25 lbs
GG4170404" Tyton Joint®¹ ductile iron pipe, valves & fittings10.41 lbs
GG6170606" Tyton Joint®¹ ductile iron pipe, valves & fittings10.58 lbs
GG8170808" Tyton Joint®¹ ductile iron pipe, valves & fittings11.13 lbs
GG101710010" Tyton Joint®¹ ductile iron pipe, valves & fittings11.50 lbs
GG121712012" Tyton Joint®¹ ductile iron pipe, valves & fittings11.70 lbs
GG141714014" Tyton Joint®¹ ductile iron pipe, valves & fittings14.25 lbs
GG161716016" Tyton Joint®¹ ductile iron pipe, valves & fittings14.73 lbs
GG181718018" Tyton Joint®¹ ductile iron pipe, valves & fittings15.27 lbs
GG201720020" Tyton Joint®¹ ductile iron pipe, valves & fittings16.00 lbs
GG241724024" Tyton Joint®¹ ductile iron pipe, valves & fittings16.45 lbs

FT Series

GG PartPartDescriptionCase Qty.Case Wt.
FT4150054" American Fastite®¹ ductile iron pipe, valves & fittings10.50 lbs
FT6150106" American Fastite®¹ ductile iron pipe, valve & fittings10.74 lbs
FT8150308" American Fastite®¹ ductile iron pipe, valves & fittings11.25 lbs
FT101504010" American Fastite®¹ ductile iron pipe, valves & fittings11.50 lbs
FT121505012" American Fastitie®¹ ductile iron pipe, valves & fittings11.80 lbs