Basic Info.
Seal Surface
Wedge Gate Valve
Thread Position of Valve Rod
Outside Gate Valve
Application
Water Industrial Usage
Pressure
ANSI 600; JIS 40k; Pn6.4mpa
Name
GB Standard Pneumatic Knife Gate Valve
Product Description
GB Standard Pneumatic Knife Gate Valve
Z6S41T a 10, Z6S41H a 16 and Z6S41H a 25, Z6S41H a 40, Z6S41H a 64 series air operated belt manual wedge type gate valve is the newest product which my factory finalizes. As a result of its technological advance, the perform reliably, the operation cuts and services conveniently, already by departments and so on petroleum, chemical industry, metallurgy, electric power, marine transportation as transportation gas, liquid medium pipeline make and break installment, but widely uses.
This product has the pneumatic actuator (double-decked air cylinder, and has buffer gear) and manual and the protection agency (manual and may self-locking air operated manual switching device) low support bright pole gate valve. Because this valve uses the double-decked air cylinder structure, it compares with the single cylinder type air operated gate valve; The lifting capacity has increased one time. This has fundamentally solved the single cylinder air operated gate valve's certain valve board disease which the wedge dies in the valve chest cannot open. Moreover, due to the valve body with a buffer, can effectively reduce the time to close the valve. Pistons down as a result of the impact caused by the valve body sealing surface and sealing surface of the wear and tear, while also avoiding the phenomenon of dead gateway board In order to coordinate the user to realize the operation automation, my factory not only supplies outside this serial products, but also provides support, including single cylinder block, to help users have a wide range of manual valve transform. My plant is installed in the cylinder block of the manual valve body covered with large, can pose a dual-use double-type pneumatic valve manually.
Principle of work and characteristic
GB Standard Pneumatic Knife Gate Valve
This series of products to O. 4 ~ O. 6MPa (gauge pressure) of compressed air purification as impetus to the Pistons, LED gate to make the vertical displacement in the fluid, open to achieve the purpose of opening the valve to close.
The double-decked air cylinder and buffer gear's principle of work, states as follows according to the gate valve work's four stage minute: (attaches inserts the schematic diagram, , , )
Remarks:
GB Standard Pneumatic Knife Gate Valve
1P stands for valves positioner; R— Pressure servomotor.
2The allowable pressure deviation is P2=0: The valve is on turning off situation, P reaches the highest level.
3If the maximum pressure is more than 1.0Mpa, we advice to weld hard or other suitable materials as the tapon and seat surface.
Enclosed sectors
Positioner, Gear Box, air filter and pressure reducers
Outside dimension
Note for Order-offering:
GB Standard Pneumatic Knife Gate Valve
If you would like to purchase our products, please kindly fullfill the Specification note form or please note the following information:
1, type of the purchased product
2, Pressure
3, dimension, fixed flow capacity KV
4, signal pressure, range of springs
5, index of the flow
6, turn-on and turn-offer methods of the needed valves
7, the temperature range of the media
8, materials of the valve body and valve core
9, note wether there is enclosed sectors and please state clealy the specification
10, nay other special characteristics
DN mm |
20 25 |
40 |
50 |
65 |
80 |
100 |
150 |
200 |
Dimension of the seat mm |
10 |
12 |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
Fixed flow capacity
Kv |
Straight line |
1.8 |
2.8 |
4.4 |
6.9 |
11 |
17.6 |
27.5 |
44 |
69 |
110 |
176 |
275 |
440 |
690 |
Percentage |
1.6 |
2.5 |
4 |
6.3 |
10 |
16 |
25 |
40 |
63 |
100 |
160 |
250 |
400 |
630 |
PN Mpa |
|
Travel mm |
10 |
16 |
25 |
40 |
60 |
Flow characteristcs |
Straight line percentage |
Terperature of the meidaº C |
-15~200(normal temperature )-40~+250\40~4509(middle range temperature) |
Size of flanges |
Casting iron flanges dimension according to JB78, casting steel flanges dimension according to JB79 |
Flanges type |
Flange sealing surface according to JB77: casting iron is flat ones and casting steel in rised face. |
Body material |
PN
Mpa |
0.6, 1.6 |
HT200 |
4.0, 6.4 |
WCB(ZG230~450)\ZG1Cr18Ni9Ti\ZG0Cr18Ni12Mo2Ti |
Trim material |
1Cr18Ni9Ti\0Cr18Ni12Mo2Ti |
Upper bonnet type |
Normal(normal temperature)heating type (middle range temperature) |
Adjustable range R |
50: 1 |
Connection of the air origin |
M16× 1.5 |
Type |
ZHA (B)-22 |
ZHA(B)-23 |
ZHA(B)-34 |
ZHA(B)-45 |
Effective area cm |
350 |
350 |
560 |
900 |
Travel mm |
16 |
25 |
40 |
60 |
Range of the spring Kpa |
20 ~100(standard); 40~200; 80~240; 20~60; 60~100 |
Item |
Index rate |
Item |
Index rate |
Basic deviation % |
Without positioner |
± 5.0 |
|
Air-driven turn-off |
Without positioner |
Start pint |
± 5.0 |
End point |
± 2.5 |
With a positioner |
Start pint |
± 1.0 |
End point |
± 1.0 |
Air-driven turn-on |
Without positioner |
Start pint |
± 2.5 |
End point |
± 5.0 |
With a positioner |
Start pint |
± 1.0 |
End point |
± 1.0 |
|
With a positioner |
± 1.0 |
Return deviation % |
Without positioner |
≤ 3.0 |
With a positioner |
≤ 1.0 |
Dead zone % |
Without positioner |
≤ 3.0 |
With a positioner |
≤ 0.4 |
Allowable leakage rate L/H |
1× 10 -4 ×
fixed valve capacity |
Fixed travel deviation % |
± 2.5 |
turn-on and – off method |
Act-uator type |
Spring range
Kpa |
Pres-sure of the air
Kpa |
Needed components |
DN(dimension of the seat)mm |
20 |
25 |
40 |
50 |
60 |
80 |
100 |
150 |
200 |
(10) |
(12) |
(15) |
(20) |
(32) |
(40) |
(125) |
(150) |
Driven off by the air |
ZHA
-22 |
20~100
20~100
40~200 |
140
250
500 |
P
P
PorR |
6.4
6.4
6.4 |
5.94
6.4
6.4 |
3.34
6.4
6.4 |
2.14
6.4
6.4 |
|
|
|
|
|
|
|
|
|
ZHA
-23 |
|
|
|
|
|
3.31
6.09
6.4 |
0.84
3.9
5.26 |
0.53
2.5
3.39 |
|
|
|
|
|
|
ZHA
-34 |
|
|
|
|
|
|
|
|
0.51
2.36
3.21 |
0.33
1.56
2.12 |
0.21
1.0
1.35 |
|
|
|
ZHA
-45 |
|
|
|
|
|
|
|
|
|
|
|
0.22
1.02
1.39 |
0.15
0.71
0.97 |
0.08
0.40
0.54 |
Driven on by the air |
ZHB
-22 |
20~100
40~200
80~240 |
P
PorR
P |
4.46
6.4
6.4 |
3.09
6.4
6.4 |
1.98
5.94
6.4 |
1.11
3.34
6.4 |
0.71
2.14
4.99 |
|
|
|
|
|
|
|
|
|
ZHB
-23 |
|
|
|
|
|
0.44
1.37
3.05 |
0.28
0.84
1.95 |
0.18
0.53
1.25 |
|
|
|
|
|
|
ZHB
-34 |
|
|
|
|
|
|
|
|
0.17
0.51
1.18 |
0.11
0.33
0.78 |
0.07
0.21
0.5 |
|
|
|
ZHB
-45 |
|
|
|
|
|
|
|
|
|
|
|
0.07
0.22
0.51 |
0.05
0.15
0.35 |
0.028
0.08
0.20 |
Sectors |
Material |
Temperature range |
Notes |
Body and upper-bonnet |
HT200 |
15~200º C |
|
WCB |
-20~425º C |
|
ZG1Cr18Ni9Ti |
-40~550º C |
|
ZG0Cr18Ni12Mo2Ti |
|
Valve core? and seat |
1Cr18Ni9Ti |
|
0Cr18Ni12Mo2Ti |
-400~550º C |
|
Packing |
PTFE |
-40~200º C |
|
Diaphragm |
Bunna rubberand and forced polyester fabric |
|
|
Spring |
60Si2Mn |
|
|
Diaphragm? bonnet |
A3 |
|
|
Address:
6# Lanjin Rd. Shacheng Industry Park, Wenzhou, Zhejiang, China
Business Type:
Manufacturer/Factory
Business Range:
Instruments & Meters, Manufacturing & Processing Machinery
Company Introduction:
Zhejiang Zhongte Pneumatic Valve Fitting Co., Ltd. Specializes in manufacturing pneumatic/electric actuators and control valves. Our company is located in Shacheng Industry Park called "Chinese valve city".
Our company was built in 1994 and covers an area of 5, 200 square meters. We have set up head office, sales department, technical department, purchase department, production department, QC department, supply department, and finance office in our company. We keep trying for ten years, and now Zhongte has grown to be a company with two subsidiary companies.
We have perfect process centre and quality inspection equipment. The process centre owns lathes, milling machines, and boring lathe numerical control machines for 40qtys. There are 5 imported vehicle process centers and many high quality numerical machines. At present, we mainly manufacture pneumatic actuators, pneumatic ball/butterfly valves, electric actuators, pneumatic/electric control valves, and other wise products. Our products are widely used in petroleum, chemical industry, electric power, metallurgy paper making, light industry, and pharmacy and food industry.
Our company absorbs advanced technologies. We use CAD, CAE, CAM, FEA and finite element analysis to design. Our products have attained ISO9001: 2000 international quality system certification.
We hope that we may return a good reputation by high quality products, reasonable prices and perfect service for customers′ support with the aim of a long-term cooperation based on equality and mutual benefits.