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A Clamp Fittings

Clamps
Service pressure ratings are based on the following parameters: matching elastomer gaskets and weld ferrules properly aligned
and assembled with the clamps tightened to the required torques. Tests are done hydrostatically with no water hammer or
shock loads. Please note the pressure ratings of the described unions may be above the recommended pipe line operating
pressures.
Single Pin Squeeze Clamps - 13MHHM-Q

Tube Service Pressure Service Pressure A Part Number
OD Rating @ 70°F 1 Rating @ 250°F 1
½" - ¾" 1500 1200 1.062 13MHHM-Q75
1" - 1½" 500 300 2.122 13MHHM-Q100150
2" 450 250 2.654 13MHHM-Q200
2½" 400 200 3.185 13MHHM-Q250
3" 350 175 3.717 13MHHM-Q300
4" 300 150 4.820 13MHHM-Q400
1 wing nut tightened to 25 in. lb. of torque
Tale of Two Clamps video
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Single Pin Heavy Duty Clamps with Cross Hole Wing Nut - 13MHHM
Tube Service Pressure Service Pressure A Part Number
OD Rating @ 70°F 1 Rating @ 250°F 1
½" - ¾" 1500 1200 1.062 13MHHM50-75
1" - 1½" 500 300 2.122 13MHHM100-150
2" 450 250 2.654 13MHHM200
2½" 400 200 3.185 13MHHM250
3" 350 175 3.717 13MHHM300
4" 300 150 4.820 13MHHM400
5" 225 100 5.820 13MHHM500
6" 150 75 6.695 13MHHM600
8" 100 50 8.695 13MHHM800
1 wing nut tightened to 25 in. lb. of torque

Single Pin Heavy Duty Clamps with Serrated Wing Nut - 13MHHM***SN
Tube Service Pressure Service Pressure A Part Number
OD Rating @ 70°F 1 Rating @ 250°F 1
½" - ¾" 1500 1200 1.062 13MHHM50-75SN
1" - 1½" 500 300 2.122 13MHHM100-150SN
2" 450 250 2.654 13MHHM200SN
2½" 400 200 3.185 13MHHM250SN
3" 350 175 3.717 13MHHM300SN
4" 300 150 4.820 13MHHM400SN
5" 225 100 5.820 13MHHM500SN
6" 150 75 6.695 13MHHM600SN
8" 100 50 8.695 13MHHM800SN
1 wing nut tightened to 25 in. lb. of torque

Double Pin Heavy Duty Clamps - 13MHHM-DP

Tube Service Pressure Service Pressure A Part Number
OD Rating @ 70°F 1 Rating @ 250°F 1
1" - 1½" 500 300 2.122 13MHHM-DP100150
2" 450 250 2.654 13MHHM-DP200
2½" 400 200 3.185 13MHHM-DP250
3" 350 175 3.717 13MHHM-DP300
4" 300 150 4.820 13MHHM-DP400
10" 100 50 10.740 13MHHM-DP1000
1 wing nut tightened to 25 in. lb. of torque

8 800.789.1718 Dixon Sanitary 2014