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Product Name:Concentric Double Flanged (U type) Butterfly Valve
Concentric Double Flanged (U type) Butterfly Valve
Specification
Structre type: Double concentric flanged (U type) butterfly valve
Design standard: BS 5155
Flange connection dimension: DIN 2501 PN10
Face to Face: DIN3202 K1
Structure length: BS 5155, API 609, EN 558
Pressure test: API 598
 
Application
This kind of butterfly valve is widely utilized in foodstuff, pharmacy, chemical industry and industrial environmental protection, water treatment, high building, water supply and drainage tubing line open/close or adjusting medium.

Materials
No.
Part Name
Material
1
Body
Cast Iron/ Ductile Iron
2
Stem
SS 410/ SS304/ SS316
3
Bushing
PTFE/Brass
4
O-Ring
NBR/ EPDM
5
Bushing
PTFE/ Brass
6
Disc
Ductile Iron/SS304/ SS 316
7
Seat
NBR / EPDM
8
Pin
SS 410
 
Dimensions ( FLANGE DRILLING: DIN2532 PN10)
Size
L
D
D1
n-d1
b
D2
D3
H1
H2
H3
H4
E
E1
n-do
Top Flange
DN700
163
910
840
24-30
35
695
800
505
624
66
33
300
254
8-18
F 25
DN750
167
995
900
24-33
35
744.6
850
574
646
66
33
300
254
8-18
F 25
DN800
188
1050
950
24-33
39
795.4
906
576
672
66
35
300
254
8-18
F 25
DN900
203
1170
1050
28-33
41
864.3
1000
637
720
118
35
300
254
8-18
F 25
DN1000
216
1290
1160
28-36
45
965
1124
701
800
142
35
300
254
8-18
F 25
DN1200
276
1485
1380
32-39
54
1160.1
1334
844
940
160
35
350
298
8-22
F 30
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·PTFE Lined Butterfly Valve
·Concentric Double Flanged (U type) Butterfly Valve
·Wafer Type Butterfly Valve
·Lug Type Butterfly Valve
·DIN3202-K3 Flanged Double-eccentric Butterfly Valve
 

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