JCM Industries · Joint Restrainer
JCM 621 Sur-Grip Joint Restrainer
Serrated restraint both sides of the joint · IPS PVC, C900 PVC, HDPE, ductile iron · 6 to 24 in
Serrated Restraint Both Sides of Joint
IPS PVC, C900 PVC and Ductile Iron (6-12 in)
C900/C905 PVC and HDPE (14-24 in)
6 to 24 in
24-280 lb Weight
Description
The JCM 621 Sur-Grip restrainer anchors IPS PVC, C900 PVC and ductile iron pipe over flexible couplings and other low-profile joints, with serrated restraint on both sides of the joint.
From 14 through 24 in it is a fabricated design with restraining rods that anchors over the bell-spigot and fused joint and prevents joint separation on C900/C905 PVC and HDPE pressure pipe.
JCM publishes its Sur-Grip pressure ratings for the 610 and 620; for the 621 we obtain the rating from JCM for your pipe and pressure.
Typical application: Restraint: prevents separation of coupled, bell-spigot and fused joints on pressure pipe.
Key Features
- Two serrated rings grip the pipe on both sides of the joint
- Compression follower rings and bolts tie the rings across the joint (6-12 in)
- Fabricated body with restraining rods for 14-24 in C900/C905 PVC and HDPE
- 14-24 in sizes are not for ductile iron, cast iron, A/C, steel or other rigid pipe
What Ships and What It Needs to Run
Included: the serrated restraining rings, compression follower rings and bolts and nuts (restraining rods and bolts on 14-24 in).
Joint to restrain, at install. The restrainer installs over the coupling, bell-spigot or fused joint and grips the pipe on both sides.
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
Rated by application. JCM does not print a 621 rating in its directory; send the pipe type, DR or class and the working pressure and we will obtain JCM's rating.
Materials Specifications
| Restraining rings |
Serrated ring bodies |
| Bolts and rods |
Sized in the table |
From the JCM Sur-Grip literature. Request the JCM data sheet for full material detail.
Pipe Applications
6-12 in: IPS PVC, C900 PVC and ductile iron. 14-24 in: C900/C905 PVC and HDPE only.
Sizes
| Nominal |
Pipe OD |
Pipe |
Serrated ring width |
Follower ring width |
Bolts / rods |
| 6 in |
6.63 in |
IPS PVC |
2-1/2 in x2 |
1-1/2 in x2 |
2 bolts 3/4 x 12 in |
| 6 in |
6.90 in |
C900 PVC or Ductile Iron |
2-1/2 in x2 |
1-1/2 in x2 |
2 bolts 3/4 x 12 in |
| 8 in |
8.63 in |
IPS PVC |
2-3/4 in x2 |
1-3/4 in x2 |
2 bolts 3/4 x 14 in |
| 8 in |
9.05 in |
C900 PVC or Ductile Iron |
2-3/4 in x2 |
1-3/4 in x2 |
2 bolts 3/4 x 14 in |
| 12 in |
13.20 in |
C900 PVC or Ductile Iron |
2-3/4 in x2 |
1-3/4 in x2 |
4 bolts 3/4 x 18-1/2 in |
| 14 in |
15.30 in |
C900/C905 PVC or HDPE |
5 in |
|
6 rods 3/4 x 26 in; 8 bolts 1 x 9 in |
| 16 in |
17.40 in |
C900/C905 PVC or HDPE |
5 in |
|
6 rods 3/4 x 26 in; 8 bolts 1 x 9 in |
| 18 in |
19.50 in |
C900/C905 PVC or HDPE |
5 in |
|
8 rods 3/4 x 26 in; 8 bolts 1 x 9 in |
| 20 in |
21.60 in |
C900/C905 PVC or HDPE |
7 in |
|
8 rods 3/4 x 32 in; 12 bolts 1 x 9 in |
| 24 in |
25.80 in |
C900/C905 PVC or HDPE |
7 in |
|
12 rods 3/4 x 32 in; 12 bolts 1 x 9 in |
From the JCM Sur-Grip size tables.
Before You OrderConfirm the pipe OD and type before ordering; 14-24 in sizes are for C900/C905 PVC and HDPE only.
For a submittal or an odd OD, email sales@watermainsupply.com with the pipe OD, pipe type and line content.
