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WARNING - System Designer and/or Contractor must provide suitable anchoring of piping to prevent pull-out from fittings when applications subject piping to external forces such as ground shift and temperature variations that cause linear pipe contraction.
Telsco fittings are suitable for use on water and oil and carry a limited warranty to give satisfactory service when recommended pressures are not exceeded and when fittings are installed per torque specifications.
| Size (In.) |
Torque (Ft-Lbs.) |
Free Piping Clamp Style |
Anchored Piping |
| Regular Style |
Clamp Style |
| 1/2 |
150 |
150 psi |
150 psi |
200 psi |
| 3/4 |
150 |
150 |
150 |
200 |
| 1 |
225 |
100 |
100 |
150 |
| 1 1/4 |
225 |
100 |
100 |
150 |
| 1 1/2 |
225 |
100 |
100 |
150 |
| 2 |
300 |
75 |
75 |
125 |
Described below are the recommended assembly procedures for Telsco Series K700 compression fittings.
To facilitate assembly, any internal and external burrs are to be removed from the cut-off ends of the pipe. Remove cutting chips from inside of pipe.
A metal Stiffener is required to be inserted within the polyethylene pipe for support of the pipe wall. Caution must be exercised in using the correct Stiffener size that matches the pipe or tubing (wall thickness) being joined; example, SDR11. Insert Stiffener full depth within pipe to its flange stop.
Clean exterior surface of pipe of all foreign matter such as dirt and compounds to insure a good sealing surface for the fitting gasket. Inspect inside surface of gasket and clean if required as accumulations may result from storage conditions and handling.
Piping is to be inserted within the fitting to maximum depth:
Couplings - midway
Elbows - to stop
Adapters - to stop
Tees - to outlet
To achieve maximum pipe pull-out resistance and sealing, End Nuts are to be wrench tightened per the following table. Use recommended wrench size and apply body pressure to approximate listed torque.
| Nomimal Pipe Size (In.) |
Torque (Ft.-Lb.) |
Recommended Wrench Size (In.) |
| PE3406 (Black) |
PE2306 (Orange) |
| 1/2 CTS |
75 |
50 |
12 |
| 1 CTS |
150 |
100 |
18 |
| 1/2 IPS |
150 |
75 |
18 |
| 3/4 IPS |
150 |
100 |
18 |
| 1 IPS |
225 |
125 |
24 |
| 1 1/4 IPS |
225 |
180 |
24 |
| 1 1/2 IPS |
250 |
200 |
36 |
| 2 IPS |
NOT RECOMMENDED |
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