• Flat gate valve
  • Flat gate valve

Flat gate valve

Material of flat gate valve:  WCB,A105,LCB,LF2,WC6,CF8,CF8M,CF3,CF3M,A890

Size of flat gate valve:  1inch(DN25)-48inch(DN1200)

Pressure of flat gate valve:  150LB(PN10)-1500LB(PN250)

Connection type:  Flange(RF,EM,RTJ),SW,BW.

Kind of drive:  Wrench,Gear,Pneumatic and electric

Design standard:  API6D

working medium:  Water,oil, Natural gas

Catalogue:

Cast steel gate,globe,check valves.pdf



Introduction for flat gate valve

The flat-plate gate valve is a slide valve with its closure member as a parallel wedge disc and the apparatus on the mouth of the petroleum and natural gas extracting well is just the said valve,with its closure member to be either a single wedge disc or a double one with an unfurling mechanism therein.

The pressing force of the wedge disc towards the seat ring is controlled by the medium pressure acting on the floating wedge disc or seat ring,The said valve features a small flow resistance,similar to that of a short straight pipe and without necking,The flat-plate gate valve with diversion holes is mounted on a pipeline and can

do pipe cleaning directly with a pipe cleaner.As the wedge disc slides on the surfaces of the two seat rings,so the flat-plate is also applicable for the medium with suspended grains,The sealing face of the said valve is positioned automatically in fact and will not get damaged along with the hot deformation of the body and overloaded along with

the hot extension of the stem when the valve is closed in cold state,The flat-plate gate valve without diversion holes

will not ask the closed position of the wedge disc for a higher precision when the valve is closed.

Parallel slide gate valve


Material specifications~~~~~~~~~ER410 and 18-8SS orht(co-cra)

NO.
Part Name
Material
WCB
LCB
WC6
WC9
C5
CF8
CF8M
CF3
CF3M
1
Body
A216 WCB
A352 LCB
A217 WC6
A217 WC9
A217 C5
A351 CF8
A351 CF8M
A351 CF3
A351 CF3M
2
Seat
A105
A350 LF2
A182 F304
A182 F304
A182 F304
A182 F304
A182 F316
A182 F304L
A182 F316L
3
Pluice Plate
A216 WCB
A325 LCB
A217 WC6
A217 WC9
A217 C5
A351 CF8
A351 CF8M
A351 CF3
A351 CF3M
4
O-Ring
NBR/FEP
5
Gage Block
A193 B7
A320 L7
A193 B16
A320 B8
6
Stem
A182 F6a
A182 F304
A182 F304
A182 F304
A182 F304
A182 F304
A182 F316
A182 F304L
A182 F316L
7
Gasket
Flexible Graphite
8
Bolt
A193 B7
A320 L7
A193 B16
A193 B8
A194 B8M
9
Nut
A194 2H
A194 L7
A194 4
A194 8
A194 8M
10
Bonnet
A216 WCB
A325 LCB
A217 WC6
A217 WC9
A217 C5
A351 CF8
A351 CF8M
A351 CF3
A351 CF3M
11
Backseat Bushing
A182 F6a
A182 F6
A182 F304
A182 F304
A182 F304
A182 F304
A182 F316
A182 F304L
A182 F316L
12
Clib Talker
Copper or Carbon steel or Stainless Steel
13
Separate Link
ASTM A182 F410
14
Packing
Graphite+ASBESTOS
15
Yoke
A216 WCB
A325 LCB
A217 WC6
A217 WC9
A217 C5
A351 CF8
A351 CF8M
A351 CF3
A351 CF3M
16
Stem nut
A439 D-2~~Cu-Alloy
17
Oil Cup
Copper or Carbon steel or Stainless Steel
18
Retaining Nut
Carbon Steel or Alloy Steel
19
Handwheel
A216 WCB
20
Protector
A105N
21
Indicator
ASTM A182 F410
Seating face overlay
ER410/ER316/STL

The materials according to ASTM standard

PLATE GATE VALVE

Size
in
2
3
4
6
8
10
12
14
16
18
20
24
28
30
36
40
mm
50
80
100
150
200
250
300
350
400
450
500
600
700
750
900
1000
150Lb (20Kg/c?O)
L
7
8
9
10-1/2
11-1/2
13
14
15
16
17
18
20
24
26
32
38
d
2
3
4
6
8
10
12
13-1/4
15-1/4
17-1/4
19-1/4
23-1/4
27
29
34-1/2
38-1/2
H
23
26-3/4
34
45-3/8
52-3/8
59-1/2
68-5/8
76
82-7/8
90
98-1/4
113
127-1/4
136-1/4
157
172
H1
6
8
10
13-1/2
16-1/2
19-1/2
22-3/4
25-1/4
28-3/8
31-3/8
34-1/2
41-1/8
46-7/8
50
59
65-11/16
D0
10
10
10
14
14
16
18
20
24
24
24
24
24
24
36
36


Size
in
2
3
4
6
8
10
12
14
16
18
20
24
28
30
36
mm
50
80
100
150
200
250
300
350
400
450
500
600
700
750
900

300Lb (50Kg/c?O)

L
8-1/2
11-1/8
12
15-7/8
16-1/2
18
19-3/4
30
33
36
39
45
53
55
68
d
2
3
4
6
8
10
12
13-1/4
15-1/4
17-1/4
19-1/4
23-1/4
27
29
34-1/2
H
23
26-3/4
34
45-3/8
52-3/8
59-1/2
68-5/8
75-5/8
80-5/8
88
97-3/4
114-1/8
129-1/8
139-1/8
161
H1
6
8
10
13-1/2
16-1/2
19-1/2
22-3/4
25-1/4
28-1/8
31
34-1/2
41-1/8
47
50-5/8
59-1/4
D0
10
10
10
14
14
16
18
20
24
24
24
24
24
36
36


Size
in
2
3
4
6
8
10
12
14
16
18
20
24
28
30
mm
50
80
100
150
200
250
300
350
400
450
500
600
700
750
400Lb (64Kg/c?O)
L
11-1/2
14
17
19-1/2
23-1/2
26-1/2
30
32-1/2
35-1/2
38-1/2
41-1/2
48-1/2
55
60
d
2
3
4
6
8
10
12
13-1/4
15-1/4
17-1/4
19-1/4
23-1/4
27
29
H
23-1/4
27
34-1/4
46-3/8
56-3/8
59-1/2
68-7/8
75-3/8
81
89-1/4
98-1/8
115-1/2
130
141
H1
6
8
10
13-5/8
16-1/2
19-3/4
23
26
28-3/4
31-1/2
35
41-7/8
51-1/2
60
D0
10
10
10
14
14
16
18
20
24
24
24
24
36
36

Certificates

Certificates
Certificates
Certificates
Certificates
Certificates
Certificates
Certificates
Certificates
Certificates

Related Products