SV-B27中国台湾317黄铜安全阀，317气体蒸汽泄压阀，溢流阀

MODEL: SV-B27
BRONZE SAFETY RELIEF VALVE （OLD MODEL: S3W-A）

MODEL: SV-B27 / SVP-B27 WITHOUT LEVER
 
MODEL: SV-B29 / SVP-B29 WITH LEVER
 

SV-B27/SV-B29 optional Pressure: 10.5~20 Kgf/cm2
 
When placing order, please indicate Working Pressure
 

The Disc can be replaced with PTFE for good effect of anti-leakage. （Model: SVP-B27, SVP-B29）
 

Working Fluid :

SV-B27/SV-B29/SVP-B29
 
Non-Corrosive Gas, Air, Steam.
 
SVP-B27 （without lever）
 
Non-Corrosive Gas, Liquid, Air, Steam, Water, Oil.

Working Temp:

-45℃～185℃

Working Pressure:

SV-B27 / SV-B29 :
 
0.3 ~ 10 Kgf/cm2 11 ~ 20 Kgf/cm2
 
SVP-B27 / SVP-B29 （PTFE）
 
3 ~ 10 Kgf/cm2

Thread End:

BSPT （BS21）, NPT （ANSI B2.1）

MATERIAL:

No./ Parts

W/O Lever

SV-B27 （S3W-A）

SVP-B27

With Lever

SV-B29 （S3W-LR）

SVP-B29

Type :

METAL TO METAL

PTFE

1

Valve Seat

FORGE BRASS

FORGE BRASS

2

Valve Disc

FORGE BRASS

FORGE BRASS

3

Valve spindle
 
（Stem）

FORGE BRASS

FORGE BRASS

3-1

Valve Seal

-

PTFE

4

Valve Body

BRONZE

BRONZE

5

Spring Shoe

BsBM

BsBM

6

Adjusting Screw

BsBM

BsBM

7

Stop Nut

BsBM

BsBM

8

Cap

FORGE BRASS

FORGE BRASS

9

Lever （Type: B29）

STEEL

STEEL

10

Spring

SWOSC-V

SWOSC-V

11

Screw Washer

BsBM

BsBM

12

Hexagon Nut

BsBM

BsBM

13

Stop Bolt

BsBM

BsBM

14

Pin

BsBF

BsBF

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This type of safety valve is characterized by regulating of pressure in valve rising and blowing-out when actuated and is the smallest and lightest valve, and also can be used in non-corrosive gases （air, oxygen, nitrogen, etc.） steam and liquids, such as water and oil. The sizes shown in the chart are subject to change without notice.
 

Nominal
 
Diameter

Valve Seat
 
Diameter D

Lift
 
l

Effective Area mm2

L1
 
E

L2
 
F

Fitting Screw

Closed Type

Lever Type

2.22Dl

πD l

0.785D2

Inlet d1

Outlet d2

A mm

Weight

A1 mm

Weight

12

12

0.52

13.32

18.84

113.0

29

50

PT 1/2

PF 1/2

138

0.52

161

0.59

19

19

0.76

32.05

45.36

283.3

36

58

PT 3/4

PF 3/4

150

0.66

172

0.74

25

25

1.00

55.50

78.53

490.6

40

70

PT 1

PF 1

180

1.09

202

1.19

32

32

1.28

90.93

128.67

803.8

50

82

PT 1.1/4

PF 1.1/4

206

1.90

222

1.94

38

38

1.52

128.22

181.45

1133.5

54

93

PT 1.1/2

PF 1.1/2

231

2.35

246

2.39

50

50

2.00

222.00

314.15

1962.5

67

102

PT 2

PF 2

265

3.85

282

4.11