5316-5325

对夹式双板止回阀pn25

PN25 Fig No.: F51DD

FEATURES & SPECIFICATIONS

Spring loaded double door
Rubber seat for non-slam effect
Durable fusion bonded epoxy coated
Comply with DIN 3202-F1
Wafer connection to BS 4504 PN25 / EN 1092-2 PN25 / ANSI CLASS 150 (Specify on order)
Applicable for Building Services, Air-Conditioning, Fire-Protection, Cold Water Plumbing, Hot Water System, Sewerage & Water Treatment, General Industries

分类：机械服务和暖通空调, 铁阀

描述

TECHNICAL SPECIFICATIONS

Working Pressure	25bar.
Shell Testing Pressure	(x1.5) 37bar
Seat Testing Pressure	(x1.1) 27.5bar
Working Temperature	-20°C…110°C (EPDM seat ring) -10°C…80°C (NBR seat ring)
Suitable Media	Water, Oil, Gas

Material Specification

Part	Material	Specification
Body	Ductile Iron	EN-JS 1050
Disc	Ductile Iron Aluminium Bronze Stainless Steel 304 Stainless Steel 316	EN-JS 1050 EN 1982 CC491K BS970 304C15 BS970 316C16
Stem	Stainless Steel 316	BS970 316S16
Seat Ring	EPDM / NBR	Commercial
Spring	Stainless Steel 304 Stainless Steel 316	BS970 304S15 BS970 316S16

DIMENSIONS

DN

(mm)

(inch)

40

1¹/₂

50

2

65

2¹/₂

80

3

100

4

125

5

150

6

200

8

250

10

300

12

350

14

400

16

450

18

500

20

600

24

L

43

43

46

64

64

70

76

89

114

114

127

140

152

152

178

D

102

107

127

142

167

192

222

282

339

399

456

513

563

623

724