- Product Details
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Quick Details
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Model Number:
-
GV
-
Brand Name:
-
runtaida
-
Product name:
-
DN250 GB flange type cast iron stop bellows seal globe valve
-
Size:
-
DN15 - DN400
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Pressure:
-
PN16/25/40
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Standard:
-
DIN, ANSI, GB, etc
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Body material:
-
WCB
-
Sample:
-
Free provided
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Operation:
-
Handwheel
-
Working medium:
-
Water,steam,oil,etc.
-
Manufacturer:
-
Yes, factory add: Gongyi City,China
-
MOQ:
-
1 Pieces
Quick Details
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Port Size:
-
DN15 - DN400
-
Warranty:
-
1 year
-
Place of Origin:
-
Henan, China
-
Model Number:
-
GV
-
Brand Name:
-
runtaida
-
Product name:
-
DN250 GB flange type cast iron stop bellows seal globe valve
-
Size:
-
DN15 - DN400
-
Pressure:
-
PN16/25/40
-
Standard:
-
DIN, ANSI, GB, etc
-
Body material:
-
WCB
-
Sample:
-
Free provided
-
Operation:
-
Handwheel
-
Working medium:
-
Water,steam,oil,etc.
-
Manufacturer:
-
Yes, factory add: Gongyi City,China
-
MOQ:
-
1 Pieces
Factory introduction
Products Description
DN250 GB flange type cast iron stop bellows seal globe valve
Technical performance specification
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Manufacturing standards
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|
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Design criteria
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GB/T 12235-2007
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Structural length
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GB/T 12221-2005
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Connecting flange
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HG/T 20592-97
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Test and inspection
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JB/T 9092-99
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Pressure test
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Nominal pressure
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PN
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Mpa
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|||
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Test pressure
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Strength test
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1.5×PN
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Sealing test
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1.1×PN
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Air seal test
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0.6
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Bellows assembly test
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1.5×PN
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Applicable temperature
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-196°C~600°C
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Product Structure
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No
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Name
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Material
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1
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Valve body
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GS-C25、CF8、CF8M
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2
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Valve seat
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13Cr、SS304、SS316、Stellite
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3
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Valve disc
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13Cr、F304、F316+Stellite
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4
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Cylindrical pin
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SS304、SS316
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5
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Bellows assembly
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SS304、SS316L
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6
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Stem
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20Cr13、F304、F316
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7
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Shim
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Flexible graphite+SS、PTFE
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8
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Valve cover
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GS-C25、CF8、CF8M
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9
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Hexagon nut
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ASTM A194-2H、A194-8
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10
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Double head stud
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ASTM A193-B7、A194-B8
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11
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Filler
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Flexible graphite、PTFE
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12
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Packing gland
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WCB、CF8
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13
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Live bolt
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ASTM A193-B7、A194-B8
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14
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Hexagon nut
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ASTM A194-2H、A194-8
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15
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Positioning film
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1025、WCB、CF8
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16
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Valve nut
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Copper alloy、D2、BL-2
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17
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Handwheel
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Carbon steel、KTH330
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18
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Hand wheel and cap
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A105
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Parameter list
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DN
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Main Dimension (mm)PN16
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|
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|
|
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||||||||
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L
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D
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D1
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D2
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b
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f
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n-∅d
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W
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H
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||||||||
|
15
|
130
|
95
|
65
|
45
|
16
|
2
|
4-∅14
|
∅140
|
220
|
||||||||
|
20
|
150
|
105
|
75
|
58
|
18
|
2
|
4-∅14
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∅140
|
220
|
||||||||
|
25
|
160
|
115
|
85
|
68
|
18
|
2
|
4-∅14
|
∅140
|
220
|
||||||||
|
32
|
180
|
140
|
100
|
78
|
18
|
2
|
4-∅18
|
∅160
|
240
|
||||||||
|
40
|
200
|
150
|
110
|
88
|
18
|
3
|
4-∅18
|
∅180
|
255
|
||||||||
|
50
|
230
|
165
|
125
|
102
|
20
|
3
|
4-∅18
|
∅180
|
260
|
||||||||
|
65
|
290
|
185
|
145
|
122
|
20
|
3
|
4-∅18
|
∅200
|
280
|
||||||||
|
80
|
310
|
200
|
160
|
138
|
20
|
3
|
8-∅18
|
∅220
|
305
|
||||||||
|
100
|
350
|
220
|
180
|
158
|
20
|
3
|
8-∅18
|
∅280
|
380
|
||||||||
|
125
|
400
|
250
|
210
|
188
|
22
|
3
|
8-∅18
|
∅320
|
410
|
||||||||
|
150
|
480
|
285
|
240
|
212
|
22
|
3
|
8-∅22
|
∅350
|
470
|
||||||||
|
200
|
600
|
340
|
295
|
268
|
24
|
3
|
12-∅22
|
∅450
|
650
|
||||||||
|
250
|
730
|
405
|
355
|
320
|
26
|
3
|
12-∅26
|
∅500
|
800
|
||||||||
|
300
|
850
|
460
|
410
|
378
|
28
|
4
|
12-∅26
|
∅550
|
900
|
||||||||
|
350
|
980
|
520
|
470
|
438
|
30
|
4
|
16-∅26
|
∅600
|
1040
|
||||||||
|
400
|
1100
|
580
|
525
|
490
|
32
|
4
|
16-∅30
|
∅650
|
1150
|
||||||||
The above data is for reference only, if you need special size
and pressure
, we can provide customized service,
please click here to contact us on alibaba.com
Product Details
Product advantages:
1.The most outstanding advantage of bellows seal globe valve is double seal design (bellows + packing). Therefore, even if the bellows fail, the valve stem packing can prevent any leakage and meet the international sealing standard.
2.It can play the role of energy saving, because it helps to minimize the energy loss caused by leakage.
3.Frequent maintenance of the valve is prevented due to the minimization of leakage. Therefore, it can extend the service life of the valve.greatly reducing the cost of operation and maintenance.
4.Through the installation of bellows seal globe valve, the discharge of flammable, toxic and dangerous chemicals can be minimized,This will ultimately improve the safety of factory.
2.It can play the role of energy saving, because it helps to minimize the energy loss caused by leakage.
3.Frequent maintenance of the valve is prevented due to the minimization of leakage. Therefore, it can extend the service life of the valve.greatly reducing the cost of operation and maintenance.
4.Through the installation of bellows seal globe valve, the discharge of flammable, toxic and dangerous chemicals can be minimized,This will ultimately improve the safety of factory.
The following are bellows seal globe valve series products:
DIN bellows seal globe valve
Y type bellows seal globe valve
for chlorine
Angle
bellows seal globe valve
Stainless steel
bellows seal globe valve
ANSI bellows seal globe valve
Special carbon steel bellows seal globe valve for chlorine
Product application cases
Bellows sealed globe valves are suitable for applications where valve leakage is not tolerated. For example, heat transfer oil, toxic, flammable, high permeability, environmental pollution and radioactive fluid pipeline eliminate the risk of process fluid leakage.
Analysis of leakage reason of bellows seal globe valve:
NO1.
It is because the liquid medium contains solid impurities that damage the sealing surface and cause failure.
NO 2. Tensile elongation and compression of the bellows valve can contribute to leakage. If tension or compression exceeds the limit, the bellows may be damaged, resulting in small series hose rupture, seal failure.
NO 2. Tensile elongation and compression of the bellows valve can contribute to leakage. If tension or compression exceeds the limit, the bellows may be damaged, resulting in small series hose rupture, seal failure.
NO
3.
The connecting thread of sealing ring, screw and pressure ring are loose. The sealing ring is not tightened or corroded, the sealing ring is welded on the valve body, and the surfacing quality is poor.
Packaging & Shipping
Inner: plastic film packing.
Outer: export wooden cases.
Exhibition
FAQ:
Q: Can you make the product as per client's requirement?
A: Yes, we can make it with your exact requirement.
Q: What are your payment terms?
A: T/T (30% as deposit, the rest 70% will be paid before delivery), L/C at sight.
Q: Where is your nearest loading port?
A: Shanghai, Qingdao or Tianjin, China.
Q: How can you guarantee the quality or any warranty?
A: If any quality problems during use, all the products can be returned or according to consumer's requests
Q: Do you accept small quantity order?
A: Of course we do.
Q: And what is your shipment and delivery time?
A: By sea or air. Normally 7 to 14 Days for delivery, according to your order quantity.
A: Yes, we can make it with your exact requirement.
Q: What are your payment terms?
A: T/T (30% as deposit, the rest 70% will be paid before delivery), L/C at sight.
Q: Where is your nearest loading port?
A: Shanghai, Qingdao or Tianjin, China.
Q: How can you guarantee the quality or any warranty?
A: If any quality problems during use, all the products can be returned or according to consumer's requests
Q: Do you accept small quantity order?
A: Of course we do.
Q: And what is your shipment and delivery time?
A: By sea or air. Normally 7 to 14 Days for delivery, according to your order quantity.
How to contact us?
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