Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

A40Y Spring-Loaded Full-Lift Safety Valve with Heat Sink
More Full-lift Safety Valve>>
More safety valve>>
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Phone：+86（577）6730 7899
Mobile：+86 1815 7711 652
Fax：+86（577）6738 7099
Email：merry@kaiweixi.com
Address：No. 1, Linxia Road, Oubei Street, Yongjia County, Wenzhou City, Zhejiang Province,china
Website：https://www.kaiweixi.com

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A40Y Spring-Loaded Full-Lift Safety Valve with Heat Sink

Model：A40Y-10C/A40Y-16C/A40Y-25C/A40Y-40C/A40Y-64C/A40Y-100C/A40Y-10C/A40Y-16P/A40Y-25P/A40Y-40P/A40Y-64P/A40Y-100P/A40Y-10C/A40Y-16R/A40Y-25R/A40Y-40R/A40Y-64R/A40Y-100R
Specification： DN50-DN150
Temperature：≦450℃
Medium：Water, oils, steam, gases, and corrosive media.

Pressure：PN10-PN100
Connection method：external thread
Driving method：spring-loaded
Material：Cast steel, stainless steel, bidirectional stainless steel

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A40Y Spring-Loaded Full-Lift Safety Valve with Heat SinkOverview

The A40Y is a full-lift safety valve specifically designed for high-temperature media (such as superheated steam). Its core feature is the addition of a finned heat sink between the valve body and the spring chamber. This heat sink effectively reduces heat transfer from the high-temperature medium to the spring chamber, preventing the spring from weakening or failing due to high temperatures. This ensures the valve maintains precise and stable set pressure along with reliable opening/closing performance under high-temperature operating conditions, providing critical overpressure protection for high-temperature and high-pressure systems.

A38Y Spring-Loaded Dual Safety Valves Product Diagram

A40Y Spring-Loaded Full-Lift Safety Valve with Heat SinkCharacteristic

1. Finned radiator structure: The valve cover is externally or at the connection with the valve body equipped with dense heat dissipation fins, significantly increasing the heat dissipation area, effectively isolating the high temperature of the medium, and protecting the stability of the spring performance.

2. The sealing surface between the hard alloy sealing ("Y" type) valve disc and the valve seat is deposited with hard alloys such as Stellite, which possesses extremely high hardness, wear resistance, and high temperature resistance, ensuring tight sealing under high temperatures.

3. The spring-loaded full-opening type with large discharge capacity adopts a full-opening structure. When the pressure exceeds the set value, the valve disc quickly opens fully, providing a large discharge area and strong discharge capacity (displacement), meeting the rapid pressure relief requirements of steam and gas systems.

4. The overall structure, material selection (such as using heat-resistant steel for the valve body) and heat dissipation design of the high-temperature and high-pressure dedicated design make it suitable for harsh working conditions with operating temperatures up to 450°C or even higher and high pressure levels.

5. The stable and reliable performance and heat dissipation design ensure the long-term thermal stability of the spring, resulting in small drift in the set pressure of the valve, good repeatability, reliable action, and long service life.

A40Y Spring-Loaded Full-Lift Safety Valve with Heat Sinkstructure principle

A38Y Spring-Loaded Dual Safety Valves Structural Diagram

Part Name Material

序号 No.	零件名称 Part Name	A48Y-C,A44Y-C 材料属性 Material Property	A44Y-P 材料属性 Material Property	A41Y-R 材料属性 Material Property
1	阀体 Valve Body	WCB WCB	ZG1Cr18Ni9Ti ZG1Cr18Ni9Ti	CF8M CF8M
2	阀座 Valve Seat	2Cr13 2Cr13	1Cr18Ni9Ti 1Cr18Ni9Ti	316 316
3	调节圈 Adjusting Ring	ZG2Cr13 ZG2Cr13	ZG1Cr18Ni9Ti ZG1Cr18Ni9Ti	0Cr18Ni12Mo2Ti 0Cr18Ni12Mo2Ti
4	反冲盘 Recoil Disc	ZG2Cr13 ZG2Cr13	ZG1Cr18Ni9Ti ZG1Cr18Ni9Ti	316 316
5	阀瓣 Valve Disc	2Cr13 2Cr13	1Cr18Ni9Ti 1Cr18Ni9Ti	316 316
6	导向套 Guide Sleeve	2Cr13 2Cr13	1Cr18Ni9Ti 1Cr18Ni9Ti	0Cr18Ni12Mo2Ti 0Cr18Ni12Mo2Ti
7	阀盖 Valve Bonnet	ZG230-450 ZG230-450	ZG230-450 ZG230-450	ZG230-450 ZG230-450
8	弹簧 Spring	50CrVA 50CrVA	50CrVA 包覆氟塑料 50CrVA coated with fluoroplastic	50CrVA 包覆氟塑料 50CrVA coated with fluoroplastic
9	阀杆 Valve Stem	2Cr13 2Cr13	1Cr18Ni9Ti 1Cr18Ni9Ti	0Cr18Ni12Mo2Ti 0Cr18Ni12Mo2Ti
10	扳手 Wrench	ZG200-400 ZG200-400	ZG200-400 ZG200-400	ZG200-400 ZG200-400
11	调整螺杆 Adjusting Screw	45# 45# carbon steel	2Cr13 2Cr13	2Cr13 2Cr13
12	阀帽 Valve Cap	ZG200-400 ZG200-400	ZG200-400 ZG200-400	316 316
-	密封材料 Sealing Material	“Y”型堆焊 Co 基硬质合金 “Y”type overlay welding Co-based hard alloy	“Y”型堆焊 Co 基硬质合金 “Y”type overlay welding Co-based hard alloy	“Y”型堆焊 Co 基硬质合金 “Y”type overlay welding Co-based hard alloy

A40Y Spring-Loaded Full-Lift Safety Valve with Heat Sinktechnology parameter

Performance Specifications Table

型号 model	铸钢型 Cast steel type
口径范围 Caliper range	DN15～DN400
适用温度 application temperature	≤350℃
适用介质 application media	水、蒸汽、油品 water、Steam and oil

A40Y Spring-Loaded Full-Lift Safety Valve with Heat Sinkstandard size

A38Y Spring-Loaded Dual Safety Valves Outline Drawing

Dimension Chart

型号Type	公称直径(DN)dominal diameter	do	D	K	g	g’	b	f	f1	Z-φd	DN’	D1	K1	g”	g’’	b’	f’	f1’	Z-φd’	L	L1	+H
SA40Y-16C	20	15	105	75		55	16	2		4-14	25	115	85		65	16	2		4-14	110	95	370
	25	16	115	85		65	16	2		4-14	32	140	100		78	18	2		4-18	110	95	370
	32	20	140	100		78	18	2		4-18	40	150	110		85	18	3		4-18	115	100	370
	40	25	160	110		85	18	3		4-18	50	165	125		100	18	3		4-18	120	110	375
	50	32	165	125		100	18	3		4-18	65	185	145		120	20	3		4-18	135	120	365
	65	40	185	145		120	20	3		4-18	80	200	160		135	20	3		8-18	160	140	500
	80	50	200	160		135	20	3		8-18	100	220	180		155	22	3		8-18	170	135	510
	100	65	220	180		155	22	3		8-18	125	250	210		185	22	3		8-18	195	175	640
	125	80	250	210		185	22	3		8-18	150	285	240		210	24	3		8-23	210	190	720
SA40Y-16I	150	100	285	240		210	24	3		8-23	175	310	270		240	26	3		8-23	255	230	740
	200	125	340	295		265	26	3		12-23	250	405	355		320	30	3		12-26	300	260	855
	25	15	105	75		55	16	2		4-14	25	115	85		65	16	2		4-14	110	95	370
	25	16	115	85		65	16	2		4-14	32	140	100		78	18	2		4-18	110	95	370
	32	20	140	100		78	18	2		4-18	40	150	110		85	18	3		4-18	115	100	370
	40	25	150	110		85	18	3		4-18	50	165	125		100	18	3		4-18	120	110	375
	50	32	165	125		100	20	3		4-18	65	185	145		120	20	3		4-18	135	120	365
	65	40	185	145		120	22	3		8-18	80	200	160		135	20	3		8-18	160	140	500
	80	50	200	160		135	22	3		8-18	100	220	180		155	22	3		8-18	170	135	510
SA40Y-25C	100	65	220	180		155	22	3		8-23	125	250	210		185	22	3		8-18	195	175	640
	125	80	270	220		185	28	3		8-26	150	285	240		210	24	3		8-23	210	190	720
	150	100	300	250		218	30	3		8-26	175	310	270		240	26	3		8-23	255	230	740
	200	125	360	310		278	34	3		12-26	250	405	355		320	30	3		12-26	300	260	855
	20	15	105	75	51	55	16	2	4	4-14	25	115	85		65	16	2		4-14	110	95	370
	25	16	115	85	58	65	16	2	4	4-14	32	140	100		78	18	2		4-18	110	95	370
	32	20	140	100	66	78	18	2	4	4-18	40	150	110		85	18	3		4-18	115	100	370
	40	25	150	110	76	85	18	3	4	4-18	50	165	125		100	18	3		4-18	120	110	375
	50	32	165	125	88	100	20	3	4	4-18	65	185	145		120	20	3		4-18	135	120	365
SA40Y-40I	65	40	185	145	110	120	22	3	4	8-18	80	200	160		135	20	3		8-18	160	140	500
	80	50	200	180	121	135	22	3	4	8-18	100	220	180		155	22	3		8-18	170	135	510
	100	65	235	190	150	160	24	3	4-5	8-23	125	250	210		185	22	3		8-18	195	175	640
	125	80	270	220	176	185	28	3	4-5	8-26	150	285	240		210	24	3		8-23	210	190	720
	150	100	300	250	204	218	30	3	4-5	8-28	175	310	270		240	28	3		8-23	255	230	740
	200	125	375	320	260	282	38	3	4-5	12-30	250	405	355		320	30	3		12-26	300	260	855
	25	16	130	90	51	68	22	2	4-4	4-18	25	115	85	58	65	16	2	4-4	4-18	110	95	370
	32	20	150	110	66	82	24	2	4-4	4-18	32	140	100	66	78	18	2	4-4	4-18	110	105	370
	40	25	170	125	76	95	24	3	4-4	5-23	50	165	125	88	100	20	3	4-4	4-18	135	120	405
SA40Y-64C	50	32	180	135	88	105	26	3	4	4-23	65	185	145	110	120	22	3	4	8-18	160	130	480
	65	40	205	160	110	130	28	3	4	8-23	80	200	160	121	135	22	3	4	8-18	160	150	620
	80	50	215	170	121	140	30	3	4	8-23	100	235	190	150	160	24	3	4-5	8-23	175	160	630
	100	65	250	200	150	168	32	3	4-5	8-26	125	270	220	176	188	28	3	4-5	8-26	220	200	710
	150	100	345	280	204	240	38	3	4-5	8-34	200	375	320	260	282	38	3	4-5	12-30	280	260	1020
	20	13	130	90	51	68	22	2	4-4	4-18	25	115	85	58	65	16	2	4-4	4-14	96	85	370
	25	15	140	100	58	78	24	2	4-4	4-18	32	140	100	66	78	18	2	4-4	4-18	110	105	370
	32	20	155	110	66	82	24	2	4-4	4-23	50	165	125	88	100	20	3	4-4	4-18	130	110	400
	40	25	170	125	76	95	26	3	4	4-23	50	165	125	88	100	20	3	4-4	4-18	135	120	405
SA40Y-100I	50	32	185	145	68	112	28	3	4	4-26	65	185	145	110	120	22	3	4	8-18	160	130	480
	65	40	210	160	110	130	28	3	4-5	8-26	125	270	220	176	188	28	3	4-5	8-26	175	160	630
	80	50	230	180	121	148	34	4	4-6	8-34	200	375	320	260	150	22	3	4-5	8-26	190	180	620
	100	65	265	210	150	172	38	3	4-5	8-30	125	270	220	176	188	28	3	4-5	8-26	220	200	710
	150	100	355	290	204	250	46	3	4-5	12-34	200	375	320	260	282	38	3	4-5	12-30	280	260	1020

Product classification of Kaiweixi

KAI WEI XI CHAN PIN FEN LEI

A40Y Spring-Loaded Full-Lift Safety Valve with Heat Sink

More Full-lift Safety Valve>>

More safety valve>>

More valve>>

A40Y Spring-Loaded Full-Lift Safety Valve with Heat Sink