API Standard 1-1/4"Cast/Forged Polished Rod Clamp

The polished rod clamp is of butterfly structure, it is fixed on the polished rod as retaining device for the rope hanger. It makes the pumping unit horsehead connected with polished rod through rod eye lifting device, and then the polished rod append and support the load of sucker rod string. The polished rod clamp is an important part connecting oil pump and sucker rod, it is required not only reliable, have a certain capacity, but also can not cause damage for sucker rod.

Material
1. Chemical Composition
To meet the requirements of this specification, polished rod manufactured from any AISI or equivalent specification recommended cast iron or carbon steel as follows.
a) ASTM A536 ductile iron 65-45-12, or equivalent international series number.
b) Carbon Steel; aisi1015 to 1045 or AISI 1515 to 1545, or equivalent international series number.

2. Mechanical Properties
Tie allowable hardness range for polished rod clamps is between 190 and 300 HB
3. Maximum Load Rating
Each polished rod clamp design has a stated maximum load rating. The maximum rated load is no more than 75% of the minimum load to initial slippage when a new polished rod clamp which has successfully completed validation testing per in accordance with this specification.

1. No dent, effectively reduce the damage to the polished rod and the packing of stuffing box

2. In accordance with the industry standards SY/T5029-2013 and API Spec 11B.

3. The product was awarded two utility model patent and one design patent.

4. Three models:  can meet the requirements of different pump depths, polished rod sizes and loads.

5. Can be used alone, can also be used with two same model and same load to increase the working load.