Tanhov Industrial Co., Ltd.

Tanhov Industrial Co., Ltd.

Type A28H Safety Valve

Tel:+0086-577-21828858 Fax:+0086-577-21828855
+Add:Sanqiao Industrial Zone,Oubei,Wenzhou,Zhejiang,China
Type A28H Safety Valve  Series:Thermal/Threaded Valve

Type A28 Safety Valve

 

safety valve/pressure relief valve, angle type

full lift safety valve

Standard safety valve for fluids

metal to metal seated

with plain lift device

threaded end

 

Applications

Provided as safety device for protection against excessive pressure in pressure vessels.

Approved for gases, vapours and fluids.

Working temperatures: ≤ 300℃

 

Standards Compliance

Design and Manufacture: GB/T 12241-2005, GB/T 12243-2005

Face to Face(end to end): JB/T 2203-1999

Test and Inspection: GB/T 12243-2005

 

 

Material for main parts

NO Name of part A21H-C/A21F,KA21Y-C Material A21W-P/A21F-P /KA21Y-P Material A21Y-R Materials
1 Body HT350 304 316
2 Nozzle 35 304 316
3 Adjust ring 2Cr13 304 316
4 Disc 2Cr13 304 316
5 Spring 50CrVA 50CrVA coated teflon 50CrVA coated teflon
6 Stem 2Cr13 2Cr13 304
7 Adjusting bolt 45 2Cr13 304
8 Cap ZG200-400 ZG200-400 304
Sealing surface of material "H" depositing D507, "W" same as body, "Y" depositing stellite

 

Essential:
Valves are delivered at a set pressure, therefore when ordering
please confirm set pressure, medium and temperature

 

TS
Safety accessory and Safety protection device
Manufacture License of Special Equipment, People's republic of China

 

Dimensions(mm)

DN do Rc L L1 G H
15 10 1/2" 37 65 3/4" 196
20 12 3/4" 40 70 1" 215
25 15 1" 45 78 1 1/4" 234
32 20 1 1/4" 55 90 1 1/2" 302
40 25 1 1/2" 67 105 2" 326
50 32 2" 76 115 2 1/2" 348
65 40 2 1/2" 110 145 3" 370
80 50 3" 110 145 4" 410

Remark: NPT, R, G thread are accepted

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Contact Us

Tel:  86-577-21828858

Mobile:  86-13454845566

Fax:  86-577-21828855

Contact Person:  Jacob Zhou

E-mail:  sales@tanhov.com

QQ:  QQOnline Service

Skype:  Contact me with skype

whatsapp:  +86-13454845566

Web:  http://www.tanhov.com/