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Pneumatic Gate Valve
Model: Z641H
Nominal diameter: DN40 ~ 600mm
Nominal pressure: PN1.6 ~ 6.4MPa
Design Standards: API 600, API6D, ASME B16.34, GB / T 12234
Construction Length: ASME B16.10, API6D, GB / T 12221
Connection Standards: ASME B16.5, ASME B16.47, GB / T 9113, JB / T 79, HG / T 20592
Pressure test: API 598, GB / T 13927, JB / T 9092
Pressure - Temperature class: ASME B16.34, GB / T 12224

Features

1, the gate has two sealing surfaces, the sealing surface to form a wedge, wedge angle varies with the valve parameters, usually 5 °.

2, wedge gate valve sealing principle is based on the wedge gate on the two sealing surfaces and the valve body when the two sealing surfaces wedged in close combination, so as to achieve sealing performance.

3, wedge-type gate valve according to the stem-driven gate opening and closing of the different ways, can be divided into Ming rod valve (lifting rod gate valve) and dark rod gate valve (rotary rod gate valve).

4, wedge gate valve structure according to the different forms can be divided into flexible gate valve and rigid gate valve.

5, the valve body is molded, the valve body and the valve cover are bolted, the flange is wound with a gaskets gasket, the customer can also use the metal ring connection when there are special requirements.

6, the channel is smooth, the flow coefficient is small. Sealing surface erosion by the media and erosion of small.

7, the sealing surface of alloy steel or carbide, wear-resistant, anti-abrasion performance.

8, using flexible graphite packing, reliable sealing, light and flexible operation.

9, the medium flow is not restricted, does not disturb the flow, does not reduce the pressure.

10, the shape is simple, the structure of short length, manufacturing technology is good, a wide range of applications.


The main form of connection size

DN PN L H h A C G (kg)
40 PN16 250 675 255 120 200 29
PN64 31
50 PN16 250 685 255 120 200 32
PN64 40
80 PN16 280 800 340 120 200 42
PN64 310 160 240 52
100 PN16 300 850 370 120 200 80
PN64 350 160 240 90
125 PN16 325 1020 415 120 200 95
PN64 400 160 240 105
150 PN16 350 1085 455 160 240 110
PN64 450 280 360 130
200 PN16 400 1195 515 160 240 215
PN64 500 280 360 275
250 PN16 450 1460 580 160 240 320
PN64 550 280 360 380
300 PN16 500 1575 645 280 360 440
PN64 600 360 500
350 PN16 550 1890 810 280 360 520
PN64 650 360 440 580
400 PN16 600 2070 900 360 440 850
PN64 700 420 500 910
450 PN16 650 2350 975 360 440 890
PN64 750 420 500 1000
500 PN16 700 2500 1073 360 440 950
PN64 800 540 620 1200
600 PN16 750 2930 1302 360 440 1100
PN64 850 540 620 1300


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