3 1/2" Nc 38 Reg Arrow Type Check Valve Back Pressure Valve

• After-sales Service: on Line
• Warranty: 12 Month
• Manufacturing Process: Forging
• Surface Treatment: Spray-Paint
• Operation Pressure: High Pressure
• Material: High Manganese Steel,Tungsten Carbide
• Model NO.: 3 1/2" Nc 38 Arrow Type Check Valve Back pressure
• Grade: 35CrMo AISI 4140 G105
• Material Body: 4145h
• Size: 3 1/2" Nc 38 Reg Arrow Type Check Valve Back Press
• Model: 3 1/2" Nc 38 Reg Arrow Type Check Valve Back Press
• Transport Package: Standard Export Package
• Specification: 2 3/8 2 7/8 3 1/2
• Trademark: SEACO
• Origin: Shandon China
• HS Code: 84314310
• Production Capacity: 100t

Product Description

3 1/2" Nc 38 REG Arrow Type Check Valve Back pressure Valve 
NC 38 Arrow type check valve

Product Description

3 1/2" Nc 38 REG Arrow Type Check Valve Back pressure Valve 
Arrow type check valve

 

Arrow type check valve description:

 

Arrow type check valve (drill check valve) is a kind of important inside blowout tool, usually used in the oil and 

gas drilling and workover. It works with the drilling tool into the well,in the process of drilling and workover in 

case of overflow, kick, or positive cycle to stop, the arrow type check valve will shut down rapidly under the 

action of reverse circulation pressure inside drill tools and spring force, cutting the channel within drilling tools, 

thus play a blowout purpose within drill tools.

 
1/2" Nc 38 REG Arrow Type Check Valve Back pressure Valve NC 38 Arrow type check valve 

Arrow type check valve specifications:

Detailed Photos

3 1/2" Nc 38 REG Arrow Type Check Valve Back pressure Valve