518532 Foster Adaptor
Instruction Manual
INSTALLATION
INSTRUCTIONS
MJ valve and fitting restraint
TOLL-FREE ASSISTANCE
1-888-773-9130
www.infactcorp.com
email: [email protected]
BEFORE YOU START:
BOLT LENGTH
- STANDARD Accessory Pak — for typical C153 compact fittings and valves
- LONG-BOLT Accessory Pak — for full-body C110 fittings and certain butterfly valves with thick bolt flanges
HYDRANT AND OTHER CONNECTIONS
- When using 3-inch to 14-inch Fosters on both the “branch” and “run” of compact tees or crosses, the standard accessory bolts may obstruct each other. Substitution of shorter bolts should solve this. Conduct a trial connection prior to field assembly. Special short-bolt accessory packs are available. Contact Impact for more info.
- Because of the large variety of hydrant designs, we strongly recommend that you conduct a trial connection prior to field assembly. Foster Adaptors can be assembled on many hydrant shoes that have adequate space for bolt clearance, including M&H Model 129, Mueller Centurion, and Clow Medallion. Contact Impact for more info.
WRENCHES
A combination wrench may be required to install the Foster Adaptor on some valves. Wrench size required:
- 3-inch (75mm): 1 1/16-inch wrench
- 4 to 12-in (100-300mm):1 1/8-inch wrench
- 14 to 24-inch (350-600mm): 1 1/4-inch wrench
- 30 to 36-inch (750-900mm): 1 5/8-inch wrench
a) Lubricate INSIDE and OUTSIDE of gaskets.
b) Seat gaskets on each side of the adaptor.
a) When possible, place the valve or fitting on its end and push the adaptor into the valve or fitting.
b) Install EVENLY.
a) Install T-bolts first. This provides easier eyebolt installation. Place bolts in hard-to-reach holes before you lower the fitting.
b) EVENLY seat fitting on the adaptor and insert other bolts.
a) Place T-head spacers on bolts. The rounded T-head faces the bolt, and the flat side faces the nut. 
Diameter, inches
Diameter, mm
NUMBER OF EYEBOLTS
| 3, 4 | 75,100 | none |
| 6, 8 | 150,200 | 1 eye bolt on each side of the valve |
| 10, 12 | 250,300 | 2 eye bolts on each side of the valve |
| 14-36 | 350-900 | none |
Tighten the nuts in an alternating pattern as follows:
| 3-inch (75mm) | 45-60 ft-lbs (61-81 N•m) |
| 4-24-inch (100-600mm) | 75-90 ft-lbs (102-122 N•m) |
| 30-36 inch (750-900mm) | 100-120 ft-lbs (135-163 N•m) |
Why the spacers?
You’re putting a nut where a T-bolt normally goes, so you’ll use the T-head spacer to shift the nut upward to keep it from hitting the fitting when you tighten the nut.
Why the eyebolts?
You do not have to rod to the eyebolts; the curve of the eyebolts just makes it easier to bolt the Foster to certain sizes of wide-bodied valves. When using the Foster to connect two fittings, place the eyebolts in any convenient hole location.
36 Hudson Rd
Sudbury MA 01776
800-225-4616
www.tisales.com
Foster Adaptor, Flex T-2 & T-3, Water Utility | Infact
