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Spring micro-opening externally threaded safety valve


Spring micro-opening externally threaded safety valve
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  Product name : Spring micro-opening externally threaded safety valve Product model : A21W A21F A21H, A21W , A21F
   Driving method : Manual Connection form : External thread
   Structure form : Slightly open    Sealing material : Cemented carbide
   Pressure range : MPa 1.6 ~ 16.0 MPa    Nominal diameter : -DN25 DN15 -DN25
   Common materials : Carbon steel, stainless steel    Technical consultation : 021-31007323

是国内著名〖 弹簧微启式外螺纹安全阀 〗制造商,也是国内大型【 安全 】生产商之一,公司自成立以来始终围绕客户的需求并持续创新,为广大的代理商和企业客户提供〖弹簧微启式外螺纹安全阀 〗解决方案,质量可靠,价格实惠,故畅销全国各地,欢迎新老客户来电,来函,我们将为您提供最优质的服务。 Hushan Valve Manufacturing (Shanghai) Co., Ltd. is a well-known domestic manufacturer of " Spring Micro-Opening External Thread Safety Valve" and one of the large domestic [ safety valve ] manufacturers. Since its establishment, the company has always focused on customer needs and continued innovation. To provide our agents and corporate customers with a "Spring Micro-Opening External Thread Safety Valve" solution, which is reliable in quality and affordable, it sells all over the country. Welcome new and old customers to call us and write us. We will provide you with the best service. .

弹簧微启式外螺纹安全阀 概述 I. Overview of spring micro-opening externally threaded safety valve

弹簧微启式外螺纹安全阀 适用于工作温度≤200℃的空气、氨、石油气……等介质的设备或管路上。 A21F, A21H-C spring micro-opening externally threaded safety valve is suitable for equipment or pipelines with air, ammonia, petroleum gas, etc., with a working temperature ≤ 200 C. 适用于温度≤200℃有腐蚀性的气体或液体的设备或管路上,作为超压保护装置。 Spring micro-opening safety valve is suitable for equipment or pipelines with corrosive gas or liquid at a temperature of ≤200 ℃, as an overpressure protection device. 弹簧微启式外螺纹安全阀 适用于温度≤100℃的液化石油气等。 A21Y spring micro-opening externally threaded safety valve is suitable for liquefied petroleum gas with temperature ≤100 ℃.
 

弹簧微启式外螺纹安全阀 系列型号 Second, spring micro-opening external thread safety valve series models


A21F-16C

A21W-16P A21Y-16C A21Y-16R

A21H-16C

A21W-40P

A21Y-16P

A21Y-40R

A21H-40

A21F-40P

 

A21Y-64R

A21H-64

A21W-64P

 

A21Y-100R

A21Y-100

A21W-100P

 

A21Y-160R

A21H-160

A21W-160P

 

 

弹簧微启式外螺纹安全阀 主要零部件材料 Material of main parts of spring micro-opening externally threaded safety valve


NO.

Part Name A21H-C / A21F material A21W-P / A21F-P material A21Y-R material

1

Pipe joint

20

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

2

Pipe joint nut

35

2Cr13

1Cr18Ni9Ti

3

Valve seat

35

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

4

Valve body

2Cr13

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

5

Disc

2Cr13 / 2Cr13 + PTFE

1Cr18Ni9Ti / 1Cr18Ni9Ti + PTFE

1Cr18Ni12Mo2Ti

6

Spring seat

2Cr13

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

7

spring

50CrVA

50CrVA coated fluoroplastic

50CrVA coated fluoroplastic

8

fasten the screw nut

Q235-A

ZG230-450

1Cr18Ni9Ti

9

Spring guide pad

2Cr13

1Cr18Ni9Ti

1Cr18Ni12Mo2Ti

10

Adjusting nut

Q235-A

2Cr13

1Cr18Ni12Mo2Ti

 

Sealing surface material

"Y" type surfacing welding Co-based hard alloy, "H" type surfacing welding D507, "W" type is the valve body


弹簧微启式外螺纹安全阀 外形尺寸和连接尺寸 4. Dimensions and connection dimensions of spring micro-opening externally threaded safety valve


A21 safety valve, structure drawing
A21 safety valve structure diagram                

 
 

model

Nominal diameter do d Do M d1 D1 L L1 ≈H

A21-16C
A21H-16C
A21H-40
A21W-16P
A21W-40P
KA21-16P

15

12

15

20

M27 1.5

G1 / 2 "

30

35

76

66

20

16

20

25

M33 1.5

G3 / 4 "

35

40

87

68

25

18

25

31

M39 1.5

G1 "

40

50

100

105

A21Y-64
A21Y-64P
A21Y-100
A21Y-100P

15

10

15

25

M39 1.5

G1 "

44

50

100

66

20

10

20

31

M39 1.5

G1 "

44

50

100

68

25

12

25

31

M39 1.5

G1 "

44

50

100

105

A21W-160 / 160P

15

8

20

/

M24 2

G1 "

44

50

100

261

20

8

25

/

M33 2

G1 "

44

50

100

261

25

8

28

/

M36 2

G1 "

44

50

100

285


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