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Company:Wenzhou Topnotch Machine Co.,Ltd. 
Address:Dongyang Rd., Heyi Industrial Zone,Oubei Town, Yongjia County,Wenzhou,Zhejiang, China 325105
Contact Person: Mr. Kevin Tung
Tel: +86-577-67318591 67318935
Email: market@tanamachine.com
MB: 86-18906638592

Spring Loaded Steam Safety Relief Valve

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Spring Loaded Steam Safety Relief Valve is used in power plant boilers,pressure containers and temperature reducing devices and other facilities.It serves to prevent pressure from exceeding max. allowed value and ensure the safety of the device during working.Steam Safety Valve sizing and selection acc.to API 520(ASME secⅧ),designed acc.to API 526,test acc.to API 527(ASME PTC 25),flange acc.to ASME B16.5. This valve’s type include A48C Open Bonnet Plain Lever Safety Valve,A48Y High Temperature and High Pressure With Radiator Safety Valve,High Performance Steam Safety Valve which meets the requirement of ASME secⅠ,High Temperature High Pressure Welded Safety Valve.

Spring Loaded Steam Safety Relief  Valve

Features:  

Open Bonnet ,with radiator              

Safety Valves/pressure safety valves, angle type

Low/Full lift safety valve for high temperture and high pressure condition 

metal to metal seated,with lever, 
Inlet: Flanged connection acc.to ASME,DIN,JIS,BS etc.
Outlet: Flanged connection acc.to ASME,DIN,JIS,BS etc.

 

Applications:

Spring Loaded Steam Safety Relief  Valve is applicable as the pressure protecting device in the equipment or pipelines for steam, air,etc.,  which the working medium is ≤350℃.


Standards Compliance:

Design and Manufacture:API RP 520
Face to Face(end to end):API 526

Test and Inspection:API 527


Model/Types:

1.spring loaded low lift open bonnet safety relief valve with lever(A47)

2.spring loaded Full lift open bonnet safety relief valve with lever(A48)


In order to offer a quotation,we need specifications as following:

1.Flange Connection standard

2.Pressure Rating

3.Size

4.Set Pressure

5.Material for Body&Trim (Material for inside parts).

6.Medium

7.Working Temperature


Main property specification

Nominal PressurePN(Class)150300600
Body strengthPs(Mpa)3.07.515
Set pressurePk(Mpa)0.1-21.6-53.2-10
Seal pressurePm(Mpa)90%Pk
Reseation pressurePh(Mpa)≥90%Pk
Relieving PressurePp(Mpa)≤1.03Pk
Lift heightH(mm)≥1/4 d0
Appropriate temp.
≤350℃
Appropriate MediumSteam

 Code of throat diameter

Code

Diameter

Code

Diameter

D

10

L

50

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

Spring Loaded Steam Safety Relief Valve Materials list

No

Name of part

Materials 

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

50CrVA

50CrVA coated teflon

50CrVA coated teflon

8

Stem

2Cr13

304

316

9

Adjusting bolt

45

2Cr13

2Cr13

10

Cap

ZG200-400

ZG200-400

ZG200-400

Sealing surface of material "H" depositing D507,  "Y" depositing stellite

Drawing For Example:

A48C-150C 10x14.jpg

For more details, please download catalogue for reference or contact with us.

Wenzhou Topnotch Machine Co.,Ltd is a professional leader China Spring-Loaded Steam Safety Relief  Valve,steam Safety relief Valve,Spring loaded safety relief valve,steam pressure relief valve,pressure relief valve function,spring loaded safety relief valve dimension manufacturer with high quality and low price.Welcome to contact us!

If you have any enquiry about quotation or cooperation,please feel free to email us at market@tanamachine.com or use the following enquiry form. Our sales representative will contact you within 24 hours. Thank you for your interest in our products.

Assistance

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Contact Us

​Company:Wenzhou Topnotch Machine Co.,Ltd. 

Address:Dongyang Rd., Heyi Industrial Zone,Oubei Town, Yongjia County,Wenzhou,Zhejiang, China 325105

Contact Person:
  Mr. Kevin Tung 

Tel: +86-577-67318591 67318935

Email: market@tanamachine.com

 

MB: 86-18906638592

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