Gate Valve Ductile Iron Rising Stem Resilient Seated

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
200 m.t.
Supply Capability:
10000 m.t./month

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Item specifice:

Material: Cast Iron Pressure: High Pressure Temperature of Media: Normal Temperature
Power: Manual Media: Water OD(Outer Diameter: inch): 400
Size(inch): DN300 Pressure(LB): 400 Net Weight (kg): 177

Product Description:

1.Structure of Gate Valve Description:
Gate valves are primarily used to permit or prevent the flow of liquids, but typical gate valves shouldn't be used for regulating flow, unless they are specifically designed for that purpose. Because of their ability to cut through liquids, gate valves are often used in the petroleum industry. For extremely thick fluids, a specialty valve often known as a knife valve is used to cut through the liquid.This means that flow rate does not change evenly with stem travel. Also, a partially open gate disk tends to vibrate from the fluid flow.

2.Main Features of the Gate Valve:
The sealing surface of valve seat and gate is overlaid (surfaced) with hard alloy, resistant to corrosion and abrasion.
Valve seat, gate and stem are sealed with imported lip-shaped combined seal structure, so they are safe and reliable, and the switching torque of valves is low.
Simple and safe design of valve gate and seat, makes it easy to change without special tools.
Non-rubber seal effectively protects valve chamber from mud, sand and rock, etc.
Stem sealing can be changed under pressure.
Stem is designed to be rising stem and non-rising stem, with a clear sign for valve opening.
Drive mode falls into manual, hydraulic and gear.
Combining type falls into flange, thread and hub.

3.Images of the Gate Valve
 Gate Valve Ductile Iron Rising Stem Resilient SeatedGate Valve Ductile Iron Rising Stem Resilient Seated

4.Specification of the Gate valve
Working medium: water, non-corrosive liquid, saturated vapor (≤ 0.6MPa)
Operating temperature: -20 °C ≤ t ≤ 135 °C
Stem: non-rising stem
Body material:Brass/Gray Cast Iron
Connection:flanged
(1)Forged Brass Screw Gate Valve, Brass valve, Brass Gate Valve
(2)Forged body, cast iron handle
(3)Can be changed to allum. handle
(4)Cast Iron Wheel Handle, can be changed to allum. handle
(5)Screw Ended
(6)Material: CW614N, CW617N, C37700 as per request.
(7)Thread: BSP, NPT as per request
5.FAQ
1. What's are the characteristics of gate valve?
The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restriction is desired. The gate faces can form a wedge shape or they can be parallel.
2. What is the structure?
Bonnets provide leakproof closure for the valve body. Gate valves may have a screw-in, union, or bolted bonnet. Screw-in bonnet is the simplest, offering a durable, pressure-tight seal. Union bonnet is suitable for applications requiring frequent inspection and cleaning. It also gives the body added strength. Bolted bonnet is used for larger valves and higher pressure applications.

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Q:What is the difference between the adjustable range of valve 50:1 and 100:1?
Said is the valve bar, adjustable valve range refers to the adjustable ratio, that is, the maximum flow control valve can be controlled with the minimum flow ratio.The regulating ratio of the regulating valve is the ratio of the maximum flow and the minimum flow that the control valve can control.
Q:The difference between fire general valve and fire fighting special valve
Fire fighting valves are mainly signal valves and alarm valves and water indicators, etc., other gate valves, butterfly valves, pressure relief valves and filters are common valves.
Q:Remove the handle and lever the stem rotation with a wrench,
First you know what valve you need, or you know where to use the pipe material, so you do not need to understand the valve material.
Q:Where is the filling portion of the valve?
The valve stem and the body of the valve at the junction of the pressure cap, the pressure cap is filled inside.
Q:How do you understand the valve Z41X-16?
This is a standard set, the landlord himself to check the JB/T308 standard, Baidu library, some, and is free to download:JB/T 308-2004 valve type method of preparation clear EditionZ = gate valve4 = connection: flange1 = structural form: open rod single gateX = sealing surface material: Rubber16 = nominal pressure: 1.6MPa16 there is no letter behind it indicates that the body is made of cast iron
Q:How can the material be checked by valve approach? What experiments do you need?
First of all, to check material certification, and secondly, the material appearance, shape and size of the initial test, again on the alloy material according to the standard spectrum analysis, the valve to do pressure test.
Q:How to check if the gas valve is open?
The gas valve has a handle, and the handle is parallel to the pipe and is opened, and the vertical is closed. If there is no handle, there is a rectangular main handle on the valve, the principle is the same as above.
Q:How about leaking water pipe valve?
It depends on where the place is leaking.1, if it is household valveA, the valve and pipe connections at the leakage, in the connection, do not rub tape (the best counter clockwise direction, so that when the valve is connected, the more twisted the more tight) ;B, if the valve itself in the leak, there are ways, it is necessary to open the valve, in which to add sealed or O ring, but it is recommended to replace a more convenient.2, if it is industrial valvesA, industrial valves leaking, if not the valve itself in the leak, then in the valve and pipe connections to join the sealing ring,B, if the valve itself is leaking, it is best to return to the manufacturer for maintenance, if not convenient, then only the manufacturers to come here for maintenance.
Q:Valve connections - two how do different connections work?
The connection of two different connection forms is achieved by a transition conversion connector
Q:What does the "Z45T-16" valve mean?
Z - gate valve4 - flange connection5 - Dark pole, stem non lifting (gate valve structure)T - copper alloy, valve sealing face code16 - pressure code, 1.6MPaMaterial code for grey cast iron valves of nominal pressure less than or equal to PN16 shall be omitted in model preparation.May refer to JB/T 308 valve model compilation method

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