← All manufacturer lines
Line 03.04 — Manufacturer detail
Gripper Gasket
Family-owned maker of boltless restraining gaskets for push-on ductile iron pipe, valves, and fittings — 100% made in the USA (California and North Carolina plants) since 1999, and American Iron & Steel (AIS) compliant. Restraint without nuts, bolts, retainer glands, or concrete thrust blocks.
Products & specifications
- GG Series Restraining GasketsInstantly restrain Tyton Joint® pipe, valves, and fittings — stainless steel teeth vulcanized into a molded bulb-profile gasket, dual-hardness elastomer above 12". 3"–24" · 350 psi · NSF/ANSI/CAN 61 · UL Recognized
- GRIPPER FT® SeriesThe same boltless restraint for American Fastite® joint pipe, in EPDM with stainless teeth and rod. 4"–12" · ANSI/AWWA C111/A21.11 tested
- Elastomer optionsSBR standard on GG; EPDM and Nitrile (NBR) stocked — the industry's deepest specialty-elastomer inventory for aggressive soils and special service. SBR · EPDM · NBR
- Joint deflection preservedUp to 5° deflection per joint (3"–18"), so restrained runs still follow the trench. Thrust-block free design per DIPRA
- MJ Transition Gaskets, Flap Valves & RingGap® SealsMechanical-joint transitions to SDR 35, Multitube flap valves for outfalls, and annular casing seals round out the line. Plus disassembly kits & shims
GG Series size reference
| Size | Part | Pipe OD | Max deflection |
|---|---|---|---|
| 3" | GG3 | 3.96" | 5° |
| 4" | GG4 | 4.80" | 5° |
| 6" | GG6 | 6.90" | 5° |
| 8" | GG8 | 9.05" | 5° |
| 10" | GG10 | 11.10" | 5° |
| 12" | GG12 | 13.20" | 5° |
| 14" | GG14 | 15.30" | 4° |
| 16" | GG16 | 17.40" | 4° |
| 18" | GG18 | 19.50" | 4° |
| 20" | GG20 | 21.60" | 2.5° |
| 24" | GG24 | 25.80" | 2.5° |
Field notes before you spec
- Not for pipe with thick asphalt coating (over 2 mils) or tape wrap — the teeth must reach the pipe surface
- Tyton®-family sockets only (GG) / Fastite® sockets only (FT); underground installations only
- Concrete thrust blocking is not required in a designed restraint system (DIPRA method)
- Expect roughly twice the assembly force of a conventional gasket; keep gaskets above 40°F in cold weather
- Gaskets are single-use — do not reuse after disassembly
Spec sheets & downloads
Submittal sheets & downloads ↗
Spec it, stock it, or see it in person.
Rockacy & Associates — your factory representative for Gripper Gasket.
Product data compiled from grippergasket.com — retrieved Sept 2026. Verify against current manufacturer submittals before bidding.