Twin spring type safety valve

Model
A37H/A38Y

Twin spring type safety valve applications

The valve is to be used as over-pressure protection device in equipments and pipelines of air , steam, water and other mediums with operation temperature no higher than 350℃. It is made through fixing A47H and A48Y safety valves of same specification to a Y shaped joint, whose nominal diameter refers to the inlet diameter of the Y shaped joint.

Twin spring type safety valve brief figure of structure

Twin spring type safety valve Dimensions (mm)Top of page

Nominal Diameter DN (mm)	Dimensions (mm)
	L	L1	B	DN’	d0
A37
50	115	225	165	32	2×25
80	140	310	205	65	2×50
100	160	355	255	80	2×65
125	170	410	260	100	2×80
150	190	430	275	125	2×100

Nominal diameter of model A37	50	80		100		125		150
Nominal diameter of the relevant A47H	32	65		80		100		125
Nominal diameter of model A43	50	80		100		125		150
Nominal diameter of the relevant A47H	32	65		80		100		125
Nominal diameter of model A38	50		80		100		150
Nominal diameter of the relevant A48H	32		50		65		65

Nominal Diameter DN (mm)	Dimensions (mm)						Nominal Diameter DN (mm)	Dimensions (mm)
	L	L1	B	DN’	do			L	L1	B	DN’	do
A43							A38
50	115	225	165	32	2×25		50	115	225	165	40	2×20
80	135	295	190	50	2×40		80	135	295	190	65	2×32
100	160	352	255	80	2×65		100	160	265	265	80	2×40
125	170	410	260	100	2×80		150	195	415	275	125	2×65
150	190	430	275	125	2×100

Twin spring type safety valve ralated productsTop of page

• Spring Loaded Low Lift Type Safety Valve
• Closed Spring Loaded Low Lift Type-High Pressure Safety Valve
• Closed Spring Loaded Full Bore Type-High Pressure Safety Valve
• Corrugated-Duct Full-Open Type Safety Valve
• Spring Full-Open Type Safety Valve Sixth A Radiator
• Air Compressor Safety Valve
• Safety Overflow Valve
• Vacuum Negative-Pressure Safety Valve
• High Temperature And High-Pressure Safety Valve
• Special Full-Lift Safety Valve For Gas
• Safety Back-Flow Valve
• Twin spring type safety valve
• Inner Assemble Safety Valve
• Impulse Safety Valve
• Single-Lever Safety Valve
• Dual-Lever Safety Valve
• Middle Temperature And Pressure Impulse Safety Device
• Pilot Operated Safety Valve
• Micro-Open Type Safety Valve
• Spring Micro-Open Type Safety Valve
• A41C Type Pound-Grade Low Lift Spring Loaded Safety Valve
• WA41C blanced bellows spring loaded safety valve
• A42C Type Pound-Grade Low Lift Spring Loaded Safety Valve
• WA42C blanced bellows spring loaded safety valve
• A44C Type Pound-Grade Full Lift Spring Loaded Safety Valve
• WA44C blanced bellows spring loaded safety valve
• A48C Type Pound-Grade Full Lift Spring Loaded Safety Valve
• A48SC Type Pound-Grade Full Lift Spring Loaded Safety Valve
• TA、A Type Special Safety Valve Series For Oil Refining
• J Series Safety Valve With Jacket
• M、R、F Series Safety Valve Screwed/Flanged
• A46C Type Pilot-Operated Pressure Relief Valve

(Can't find what you need? We may produce it - Contact Us today!)