Cast Steel Pressure Safety Valve

The cast steel pressure safety valve is an automatic pressure release device activated by static pressure upstream of the valve. Notable for its rapid full opening or explosive action, it is typically employed in gas or steam services.

Safety Valve/pressure safety valve, angle type

Full Lift Safety Valve: Capable of achieving maximum lift during operation, allowing for efficient pressure relief.

Conventional type, Standard safety valve for fluids and gas

Metal-to-Metal Seated: Ensures a tight seal and durability, even under high-pressure conditions.

Equipped with flanged connections compliant with ANSI B16.5 standards

 

Design and Manufacture: API RP 520

Face to Face(end to end): API 526

Test and Inspection: API 527

Approved for gases, vapours and fluids

Working temperatures: Lower than 300°C

 

 

1.Simple shape, short structural length, good manufacturing process, its versatility allows for wide application across various industries.

2.With minimal flow resistance, the valve enables smooth fluid or gas flow.

3.nstallation is straightforward, thanks to its user-friendly design and compatibility with standard installation procedures.

4.Less effort when opening and closing, reducing strain on the operator, thereby enhancing ease of use and maintenance.

 

 

1.The solid nozzle screws into the body. its maintenance is easy

2.The shape of the valve disc holder is specially designed to enhance the effect of fluid thrust, thereby achieving instantaneous lifting of the valve disc

3.The choice of material is careful. The manufacture of the spring and the bellows has strict technological process. Each of them is tesed and checked strictly

 

 

 

Mormal Pressure	PN	150	300	600	900	150
Body strength	Ps(Mpa)	3.0	7.5	15	22.5	38
Set pressure	Pk(Mpa)	0.1-2	1.6-5	3.2-10	8-25	10-25
Seal pressure	Pm(Mpa)	90%Pk
Reseation pressure	Ph(Mpa)	≥90%Pk
Relieving Pressure	Pp(Mpa)	≤1.1Pk
Lift height	H(mm)	≥1/4 d0
Appropriatetemp.	C (WCB) P, R (SS304, SS316)			≤300℃ ≤200℃
Appropriate Medium	Air, Oil, Steam, Water, Corrosive medium

 

 

Code	Diameter	Code	Diameter
D	10	L	20
E	13	M	55
F	16	N	60
G	20.5	P	72
H	26	Q	96
J	33	R	115
K	40	T	148

 

 

NO	Name of part	Materials A42H-C	Materials A42Y-P	Materials A42Y-R
1	Body	WCB	CF8	CF8M
2	Nozzle	2Cr13/ 304	CF8	CF8M
3	Adjusting Ring	2Cr13/ 304	304	316
4	Disc	2Cr13/ 304	304	316
5	Guide sleeve	2Cr13/ 304	304	316
6	Bonnet	WCB	CF8	CF8M
7	Spring	ASTM 6150	ASTM 6150 coated teflon	ASTM 6150 coated teflon
8	Stem	2Cr13	304	316
9	Adjusting bolt	45	2Cr13	2Cr13
10	Cap	A126	CF8	CF8M
11	Bellows	304	316	316

 

 

FAQ

1. How to ensure the valve quality?We conduct thorough inspections on each casting upon receipt, meticulously examining them one by one. Any castings found to have defects, such as blowholes or pinholes, are promptly identified and discarded. This stringent quality control measure ensures that only castings meeting our high standards for integrity and quality are utilized in production processes. By promptly identifying and discarding defective castings, we maintain the quality and reliability of our products, ultimately ensuring customer satisfaction and safety.

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