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A27H Low Lift Plain Lever Type Safety Valve

low lift safety valvemetal to metal seatedwith plain lever devicethreaded connection end

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Type A27 Safety Valve


safety valves/pressure relief valves, angle type

low lift safety valve

metal to metal seated

with plain lever device

threaded connection end


Applications

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

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

A27H-C/A27F,KA27Y-C Material

A27W-P/A27F-P /KA27Y-P Material

A27Y-R Materials

1

Body

WCB

304

316

2

Nozzle

WCB

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"

40

65

1/2"

135

20

15

3/4"

45

65

3/4"

140

25

20

1"

45

76

1"

155

32

25

1 1/4"

55

85

1 1/4"

170

40

32

1 1/2"

55

90

1 1/2"

310

50

40

2"

67

105

2"

322

65

50

2 1/2"

76

128

2 1/2"

344

80

65

3"

110

145

3"

395

Remark: NPT, R, G thread are accepted






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