Overview of Z43WF manual flat gate valve: Z43WF manual slab gate valve is suitable for natural gas, petroleum, chemical, environmental protection, urban pipelines, gas pipelines and other transportation pipelines, venting systems and steam storage devices, as opening and closing equipment. Suitable for long-distance pipelines for natural gas extraction and purification.
Item NO.:
XUVAL77-107Lead Time:
45DaysProduct Orgin:
CHINABrand:
XUVALShipping Port:
ShanghaiPayment:
100%TTColor:
SilveryMOQ:
10Z43WF non-guide plate gate valve
Structure description:
1. The valve seat is a rigid floating seat inlaid with PTFE or filled PTFE sealing ring, which has a double sealing effect. The valve seat is pre-tightened by the O-ring at the end, and the active cold effect of the floating seat achieves simultaneous sealing of the inlet and outlet. This double sealing structure completely isolates the cavity of the valve body from the channel, and the valve can be inspected and repaired under working conditions to remove the residue in the body cavity.
2. The ram is a rectangular parallel plate with a through hole with the same diameter as the channel (with diversion hole), or without a hole (without diversion hole). When fully opened, the channel is smooth and straight. , Flow resistance coefficient is low, pressure loss is small, the gate and valve seat are always in contact with each other when opening and closing, you can test the particle dirt attached to the sealing surface, and the sealing surface can be protected from being directly washed by the medium
3. The valve stem and the gate are connected by a "T" groove
4. The flange of the flat valve adopts metal flexible graphite gasket, and the flange of the round valve adopts O-ring seal;
5. There is an oil seal device on the sealing surface. In an emergency, the grease injector can be tightened to inject the sealing grease to ensure the reliability of the seal;
6. The valve is fully enclosed, and there is an opening indicator on the upper end of the valve cover, which can indicate the opening and closing state and height of the valve at any time;
7. The surfaces of parts such as rods, seats and gates are all subjected to special heat treatment (mos2)
8. Both the bottom of the valve body and the upper part of the valve cover are equipped with pressure relief devices, which can discharge dirt and increase pressure caused by temperature rise;
9. Turn the handwheel clockwise to close, and vice versa to open.
Features of Z43WF manual flat gate valve:
1. The sealing structure of the valve seat should be elastic and pre-tightened, and the upstream and downstream sealing seats are sealed at the same time. The valve seat and the seal are always face-to-face sealing.
2. The valve seat has a self-cleaning function, and is not directly washed by the air flow during the opening or closing of the valve. The valve seat should be made of lubricated, non-wearing material.
3. The failure of the valve actuator will not affect other parts of the valve. Repair and replacement work can be carried out without removing the valve.
(1) Yoke sleeve-The aluminum bronze yoke sleeve is equipped with needle-shaped thrust bearings to reduce the operating torque.
(2) Stem-thread length up to the bracket; pins and spot welding; stable.
(3) Pressure seal-simple structure, equipped with segmented retaining ring and silver-plated low carbon steel gasket, which is helpful for disassembly and realization of bonnet sealing.
(4) Valve seat ring-The welded seat ring is perpendicular to the flow channel, which is easy to maintain.
(5) Actuator-These valves can be equipped with electric, hydraulic or pneumatic actuators. Standard manual handwheels are configured below DN300, and helical gear operating mechanisms are configured above DN350.
(6) Yoke-The fully assembled yoke has passed the seismic test and is easy to maintain and install the actuator.
(7) Gland-two-piece, self-adjustable gland to avoid being ejected.
(8) Integral rear seat-hard surface, long service life.
(9) Disc-The spring-loaded disc can be adjusted by itself, reducing the torque demand of the actuator.
(10) Integral stop-integrally cast bracket stop device to position the assembled bracket disc.
Z43WF manual flat gate valve executive standard:
Z44WF-16C
Z44WY-16C
KZ44WF-16C
Z544WF-16C
Z544WY-16C
KZ544WF-16C
Z6S44WF-16C
Z6S44WY-16C
KZ6S44WF-16C
Z9B44WF-16C
Z9B44WY-16C
KZ9B44WF-16C
Design specification
Structure length
Connecting flange
Test and inspection
Pressure-temperature
Product Identification
JB/T5298
JB/T5298
JB/79
JB/T5298
GB9131
GB/T12220
API6D
API6D
ANSI-16.5
API6D
ANSI B 16.34
MSS SP-25
Z43WF manual flat gate valve performance specifications:
Design grade
Test pressure at room temperature (MPa)
Applicable temperature ℃
Applicable medium
Case
Left seal
Left seal
Low pressure seal
"G" type
"D" type
Normal type
"Sulfur-resistant" type
"Basic" type
Nominal pressure PN (MPa)
1.6
2.4
1.76
1.76
0.6
-29~50
-45~21
-2~121
Medium with total content of H2S and CO2 greater than 500mg/m2
Oil and gas, water, etc.
2.5
3.75
2.75
2.75
0.6
4.0
6.0
4.4
4.4
0.6
6.4
9.6
7.04
7.04
0.6
Pound class Lb
150
3.0
2.2
2.2
0.6
300
7.7
5.6
5.6
0.6
Main external dimensions and connection dimensions:
Product number
Nominal diameter DN
PN1.6MPa
L
D
D1
D2
b
Z-∅d
H
D0
Weight (kg)
25
127
115
85
65
14
4-14
280
200
9
32
140
135
100
78
16
4-18
1322
200
12
40
165
145
110
85
16
4-18
380
250
16
50
178
160
125
100
16
4-18
415
250
26
65
190
180
145
120
18
4-18
470
300
38
80
203
195
160
135
20
8-18
540
300
46
100
229
215
180
155
20
8-18
605
350
62
125
325
245
210
185
22
8-18
785
350
96
150
350
280
240
210
24
8-23
925
350
132
150
350
280
240
210
24
8-23
925
350
132
200
400
335
295
265
26
12-23
1125
350
220
250
450
405
355
320
30
12-25
1350
450
355
300
500
460
410
375
30
12-25
1485
500
490
350
550
520
470
435
34
16-25
1705
550
810
400
600
580
525
485
36
16-30
1875
600
930
450
650
640
585
545
40
20-30
2185
800
1230
500
700
705
650
608
44
20-34
2335
800
1727
600
800
840
770
718
48
20-41
2680
1000
2514
Product outline structure diagram:
Packing & Delivery :
Packing Details:all by seaworthy plywood case and packed strongly by packing belt as below
Delivery Details:Generally it is 5-10 days if the goods are in stock. or15-30 days if the goods are OEM or not
enough subject to the order quantity. But anyway, normally, we are able to make sure the delivery will not exceed 45days.
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