API Spec 7K Safety Clamps for Coupling and Uncoupling

API Spec 7K Safety Clamps for Coupling and UncouplingThe safety clamps are designed for coupling and uncoupling in oil natural gas drilling operation. It can prevent the drill tools from slipping down

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API Spec 7K Safety Clamps for Coupling and Uncoupling


The safety clamps are designed for coupling and uncoupling in oil natural gas drilling operation. It can prevent the drill tools from slipping down. When changing the working range, it just needs to adjust the number of chain links. According to various types of pipes or drill tools, suitable number of chain links shall be selected. The surface of the safety clamps should always be kept clean and lubricated against rust. The inserts should be replaced entirely in time once it is found worn out. 


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Safety clamps Type MP are necessary tools for handling drill collars, flush joint pipe and small shoulder pipes. They could adjust pipes of different sizes by changing the quantity of chain links.


Safety clamps Type C and T are necessary tools for handling flush joint pipes and drill collars. They can accommodate pipes from 1 1/8" to 15 3/8".


Model

Handling Pipe Size (in)

Qty of Chain links

WA-C

3 1/2-4 5/8

7

4 1/2-5 5/8

8

5 1/2-6 5/8

9

6 1/2-7 5/8

10

7 1/2-8 5/8

11

8 1/2-9 5/8

12

9 1/2-10 5/8

13

10 1/2-11 5/8

14

11 1/2-12 5/8

15

12 1/2-13 5/8

16

13 1/2-14 5/8

17

14 1/2-15 5/8

18

WA-T

1 1/8-2

4

2 1/8-3 1/4

5

3 1/2-4 1/2

6

MP-S

2 7/8-4 1/8

7

4-5

8

MP-R

4 1/2-5 5/8

7

5 1/2-7

8

6 3/4-8 1/4

9

8-9 1/4

10

9 1/4-10 1/2

11

MP-M

10 1/2-11 1/2

12

11 1/2-12 1/2

13

12 1/2-13 5/8

14

13 5/8-14 3/4

15

14 3/4-15 7/8

16

MP-L

15 7/8-17

17

17-18 1/8

18

18 1/8-19 3/8

19

MP-XL

19 3/8-20 3/8

19

20 3/8-21 1/2

20

21-22 5/8

21

22 5/8-23 3/4

22

23 3/4-24 7/8

23

24 7/8-26

24

26-27 1/8

25

29 3/8-30 1/2

28


The safety clamps are designed and manufactured according to API spec 7K specification for drilling and well servicing equipment.