API 7K Type 75sb/Q Drilling Rig Wellhead Tools Manual Tong for Oilfield

• Customization: Available
• After-sales Service: 24/7
• Warranty: 24/7
• Model NO.: 7K
• Manufacturing Process: Forging
• Material: Carbon Steel
• Specification: 3 1/2-133/8 /75KN. m
• Trademark: GOLDENMAN
• Origin: China
• Production Capacity: 150000

Product Description

API 7K Type 75 SB Manual Tong

 

1.Description
API 7K Q 3 1/2-17/90 ( Type DB Manual tongs) is designed for making up or breaking connections of tubular goods, and can handle the pipe sizes from 3 1/2in to 17 in by replacing interchangeable lug jaw or the step of lug jaw, torque of this type is 90kN.m.
2.Structural
Type DB tongs body is connected with joint pin on the boom and hang over the well rigs through the top ring on the boom,. Try to keep the tongs body in horizontal level by adjusting the balance head and adjustable square head screw. The pipe threads cold be tightened or removed as soon as the steel wire rope which is fastened on the tongs line pip has been pulled firmly after the latch and the lug jaw have been looped and the pipes have been held by the tongs head.
3.Specifications for DB type tongs

 

No.of Latch Lug Jaws	No.of Latch Lug Jaws	Size Range		Rated torque(kN.m)
		in	mm
1#	1	3 1/2-4 1/8	88.9-104.8	75
	2	4 1/8-5	104.8-127
2#	1	4 1/4-5 1/4	108-133.35
	2	5-5 3/4	127-146
	3	6-6 3/4	152.4-171.45
3#	1	6 5/8-7 1/4	168.3-184.15
	2	7 5/8-8	187.3-203.2
	3	8 1/2-9	215.9-228.6
4#	1	9-9 5/8	228.6-244.5	55
	2	10 5/8-10 3/4	269.8-273
5#	1	11 3/4	298.5
6#	1	12 3/4-13	323.8-330.2	40
7#	1	13 3/8	339.7