Pilot Safety Pressure Relief Valve/Safety Valve

• Media: Acid
• Certification: CCC, ISO, CE
• Temperature: Ordinary Temperature
• Connection: Flange
• Pressure: Non-Ajustable
• Closed: Open
• Model NO.: HZS
• Structure: Spring
• Material: Stainless Steel
• Transport Package: Plywood Case
• Trademark: HUIZHENG
• Origin: Wenzhou/China
• HS Code: 8481804090
• Production Capacity: 100000PCS/Year

Product Description

Product description
I. product use and characteristics
Pilot-operated safety relief valve is a safety valve with novel structure, which is mainly used in the fields of oil and gas, chemical industry, electric power, metallurgy and city gas. It is the best overpressure protection device on pressurized equipment, containers or pipelines. The main characteristics of the pilot safety pressure relief valve are that the direct action of spring is changed to the indirect action of pilot valve, which improves the sensitivity of action. The main valve adopts sleeve piston type and double sealing valve seat structure, which has high action precision, good repeatability, fast seat return, zero leakage, high back pressure discharge, long working life and stable and reliable work. It can also be adjusted online after repeated starting and jumping discharge. It can still return to its seat automatically, with tight closure and convenient operation and maintenance.

II.Standards and specifications

Design&Manufacturing	Face to Face	flange connection	Experiment and inspection
GB12241-89 GB12243-89	GB12221-89	JB/T79-94 HG20592-97	GB12242-89

III.Main performance specifications

Valve Model	Nominal diameter (Mpa)	Strength test pressure (Mpa)	Spring pressure rating (Mpa)	Main performance parameters				Lift (mm)	Applicable medium	Applicable temperature	Rated displacement
				Setting pressure (Mpa)	Sealing test pressure(Mpa)	Discharge pressure ≤ (Mpa)	Seating pressure ≥ (Mpa)
Ax46F/Y-16C AF46Y-16C KAx46F/Y-16C KAF46Y-16C	1.6	2.4	0.8-1.6	0.8	0.72	0.88	0.68	1/4 Throat diameter	Gas, natural gas, etc	-29ºC-200ºC	0.75
				1.0	0.90	1.10	0.85
				1.3	1.17	1.43	1.105
				1.6	1.44	1.76	1.36
Ax46F/Y-25C AF46Y-25C KAx46F/Y-25C KAF46Y-25C	2.5	3.8	1.3-2.5	1.3	1.17	1.43	1.105
				1.6	1.44	1.76	1.36
				2.0	1.80	2.20	1.70
				2.5	2.25	2.75	2.125
Ax46F/Y-40 AF46Y-40 KAx46F/Y-40 KAF46Y-40	4.0	6.0	2.0-4.0	2.0	1.80	2.20	1.70
				2.5	2.25	2.75	2.125
				3.2	2.88	3.52	2.72
				4.0	3.60	4.4	3.4
Ax46F/Y-64 AF46Y-64 KAx46F/Y-64 KAF46Y-64	6.4	9.6	3.2-6.4	3.2	2.88	3.52	2.72
				4.0	3.60	4.4	3.4
				5.0	4.50	5.5	4.25
				6.4	5.76	7.04	5.44
Ax46F/Y-100 AF46Y-100 KAx46F/Y-100 KAF46Y-100	10.0	15.0	5.0-10.0	5.0	4.50	5.5	4.25
				6.4	5.76	7.04	5.44
				8.0	7.2	8.8	6.8
				10.0	9.0	11.0	8.5
Ax46F/Y-160 AF46Y-160 KAx46F/Y-160 KAF46Y-160	16.0	24.0	10.0-16.0	10.0	9.0	11	8.5
				13.0	11.7	14.3	11.05
				16.0	14.4	17.6	13.6
Ax46F/Y-320 AF46Y-320 KAx46F/Y-320 KAF46Y-320	32.0	48.0	16.0-32.0	16	14.4	17.6	13.6
				19	17.1	20.9	16.15
				25	22.5	27.5	21.25
				29	26.1	31.9	24.65
				32	28.8	35.2	27.2

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