Forged steel check valves with welded bonnets are designed to control fluid flow and prevent backflow in high-pressure systems. The welded bonnet construction provides a leak-tight seal that is ideal for applications that require a high level of reliability and safety. These valves are commonly used in the oil and gas, power generation, and chemical processing industries.

The class rating of a forged steel check valve with a welded bonnet determines its maximum pressure rating. The two most common class ratings for these valves are class 1500 and class 2500. Class 1500 valves are designed to handle pressures up to 1500 pounds per square inch (psi), while class 2500 valves can handle pressures up to 2500 psi.

The valve body and bonnet of a welded bonnet forged steel check valve are joined together by welding, which provides a strong and secure connection that is resistant to vibration and thermal expansion. This design also eliminates the need for gaskets, which can wear out and require replacement.

Standard Material:

Sr. No.	Part Name	CS to ASTM	Alloy Steel to ASTM	Stainless Steel to ASTM
01.	Body	A105 | A350 LF2	A182 F5 | A182 F11 A182 F22 | A182 F9	A182 F304 | A182 F316 A182 F304L | A182 F316L
02.	Cover	A105 | A350L F2	A182 F5 | A182 F11 A182 F22 | A182 F9	A182 F304 | A182 F316 A182 F304L | A182 F316L
03.	BUSH	Material : ASTM 276 Type 410
04.	Disc	As Per Trim Material Combination