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Z43WF non-guide plate gate valve

Z43WF non-guide plate gate valve

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.:

    XUVAL77-107
  • Lead Time:

    45Days
  • Product Orgin:

    CHINA
  • Brand:

    XUVAL
  • Shipping Port:

    Shanghai
  • Payment:

    100%TT
  • Color:

    Silvery
  • MOQ:

    10
Products Details

Z43WF 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:

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)

Z44WF-16C

Z44WY-16C

KZ44WF-16C


Z544WF-16C

Z544WY-16C

KZ544WF-16C


Z6S44WF-16C

Z6S44WY-16C

KZ6S44WF-16C


Z9B44WF-16C

Z9B44WY-16C

KZ9B44WF-16C

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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