JCM Industries · Joint Restrainer
JCM 631 Coupling Restrainer for Asbestos Cement Pipe
A/C pipe · 150 PSI · 4 to 16 in
150 PSI Rating
For Asbestos Cement Pipe
ASTM A285 Gr C Steel Body
Tie Rods, Nuts and Washers Included
Shop Coat, Epoxy or Epoxy with SS Bolts
4 to 16 in
50-163 lb Weight
Description
The JCM 631 coupling restrainer anchors 4 through 16 in asbestos cement pipe. Its wide supportive stance and split design make it ideal for retrofit work, where excavation releases the compacted backfill around A/C joints and exposes them to shifting, movement and displaced gaskets.
It installs over A/C couplings, MJ couplings and mechanical couplings, with 36 in tie rods, nuts and washers included.
Typical application: Restraint of A/C pipe at couplings.
Key Features
- Rated for 150 PSI
- Split design for retrofit installation
- Tie rods, nuts and washers included
- Shop coat standard; fusion epoxy (E) or epoxy with stainless bolts (ESS)
- Alternative to thrust blocks at hydrants, dead ends and unstable soil
What Ships and What It Needs to Run
Included: the split restrainer body, 36 in tie rods, nuts and washers.
Genuine JCM Industries equipment, factory-new in original packaging — sold and supported by Watermain Supply, an independent industrial supplier.
12-Month Warranty
Covered for 12 months from the date of purchase against defects in materials and workmanship. Keep the dated invoice as proof of purchase.
Working Pressure
150 PSI. JCM rates the 630 and 631 restrainers for 150 PSI.
Materials Specifications
| Restrainer body |
Pressure-vessel quality steel, ASTM A285 Grade C or equal |
| Bolts and nuts |
Corrosion-resistant high-strength low-alloy, AWWA C111, ANSI A21.11; 304 stainless optional |
| Finish |
Shop coat, heavy corrosion-inhibiting primer; fusion epoxy per ANSI/AWWA C213 optional |
From the JCM 630/631 material specification.
Pipe Applications
Asbestos cement pipe, 4 through 16 in.
Sizes
| Nominal |
Pipe OD range |
| 4 in |
4.80-5.10 in |
| 6 in |
7.05-7.40 in |
| 8 in |
9.27-9.60 in |
| 10 in |
11.76-12.24 in |
| 12 in |
14.08-14.56 in |
| 14 in |
16.30-16.73 in |
| 16 in |
18.62-19.19 in |
Each size comes in shop coat, epoxy (E) or epoxy with stainless bolts (ESS).
Before You OrderConfirm the A/C pipe OD before ordering.
For a submittal or an odd OD, email sales@watermainsupply.com with the pipe OD, pipe type and line content.
