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  • Product Name: Wafer Type Backed Seat Butterfly Valve
  • Added time: 2017-07-31
  • Series No.: KF-1200
  • Views : 122

Product Feature

  • Centerline structure, with pin on the through shaft or pinless double half shaft design.
  • Disc has twoway bearing, no installation direction requirements.
  • End flange can meet different connection standards at the same timeDN50mm_300mm.
  • Holes for the end flange is drilling holesDN350mm_500mm.
  • Backed replaceable seat with good performance and a longer working life.
  • Square and short neck for lable use and cost saving.
  • Easy installation, no need flange gasket.

 

Technical Parameters

Nominal diameter(mm)
25~500
25~500
Nominal pressure(Mpa)
1.0 
1.6
Testing pressure
Shell(Mpa)
1.5
2.4
Seal(Mpa)
1.1
1.76
Suitable temperature
-40°C~200°C
Suitable medium
Drinking water、sewage、seawater、food、medicines、gas、oil and acid

 

Main Raw Material

Body
Disc
Stem
Seat
Actuator
Cast iron

Plated ductile 

iron

Stainless 

steel

EPDM/NBR
lever
Ductile iron
CF8
WRAS-EPDM
gearbox and handwheel
Carbon steel
CF8M
Viton
Electric
Stainless steel
Aluminum bronze
customised
Silicon
Pneumatic
PS:1.Replaceable backed seat/PTFE seat 2. Pinless Nylon disc/Epoxy disc/PTFE disc

 

Reference Standard

Design standard
API 609
Testing standard
API 598
Top flange standard
ISO5211
End flange standard
DIN PN10 / PN16、ANSI 125# / 150#、BS4504 PN10 / PN16、JIS B2220 10K
Face to face standard
API 609、EN558-1 20 Series、BS5155、DIN3202 K1

 

Overall Dimension and Weight

Size
A
B
D
Top Flange
ΦE
Weight(kg)
DN25
142
90
29
F05
65
0.84
DN40
156
92
33
F05
65
1.29
DN50
189
126
43
F05
65
2.07
DN65
202
133
46
F05
65
2.68
DN80
238
152
46
F05
65
3.16
DN100
276
170
52
F07
90
4.90
DN125
296
181
56
F07
90
6.85
DN150
324
196
56
F07
90
7.85
DN200
398
238
60
F10
125
12.00
DN250
456
258
68
F10
125
18.50
DN300
535
300
78
F10
125
32.50
Size
A
B
D
Top Flange
ΦE
DIN PN10
DIN PN16
ANSI 150#
Weight(kg)
4-Φd
ΦD
4-Φd
ΦD
4-Φd
ΦD
DN350
580
320
78
F10
125
4-22
460
4-26
470
4-28.4
476.2
41.30
DN400
665
356
102
F14
175
4-26
515
4-30
525
4-28.4
539.7
61.00
DN450
720
380
114
F14
175
4-26
565
4-30
585
4-31.8
577.8
79.00
DN500
790
420
127
F14
175
4-26
620
4-33
650
4-31.8
635.0 
128.00