Model NO.: Gate Valve
Thread Position of Valve Rod: Outside Gate Valve
Usage: Regulation, Safety, Emptying, Drain, Temperature Control, Flow Control, Gate Valve
Standard: GB ANSI JIS DIN or as Required
Application: Industrial Usage, Water Industrial Usage, Household Usage
Position: Open Completely or Closed
Seal: Rigid Gate or Trace Valves
Trademark: An Pump
Transport Package: Gate Valve Seaworthy Wooden Case
Specification: CE, ISO, SGS
Origin: Hebei
HS Code: 8413709990
Gate valve
Gate valve opening and closing parts is the gate, the direction of movement of the gate and the fluid direction perpendicular to the gate valve can only be fully open and fully closed, can not be adjusted and throttling. The gate has two sealing surfaces, and the two most commonly used pattern gate valves are wedge-shaped, and the wedge angle varies with the valve parameters, typically 5 °. Wedge gate valve can be made into a whole, called the rigid gate; can also be made to produce trace deformation of the gate to improve its craft, to make up the sealing surface angle in the processing of the deviation, The plate is called a flexible gate. When the valve is closed, the sealing surface can only rely on the media pressure to seal, that is, rely on the media pressure to the gate of the sealing surface to the other side of the valve seat to ensure that the sealing surface of the seal, which is self-sealing. Most of the gate valve is forced to seal, that is, when the valve is closed, to rely on external force forced to the gate pressure to the valve seat to ensure that the sealing surface of the seal. Gate valve with the stem with a straight line for the movement, called the lift bar gate valve, also called the gate valve. Usually in the lift bar with trapezoidal thread, through the top of the valve nut and the valve body on the guide groove, the rotary motion into a linear motion, that is, the operating torque into the operating thrust. When the valve is opened, when the height of the gate is equal to 1: 1 times the diameter of the valve, the fluid channel is completely open, but this position can not be monitored during operation. The actual use of the stem is the vertex as a sign, that is, the location of the open, as its full open position. In order to consider the temperature changes appear locking phenomenon, usually in the open to the vertex position, and then back 1 / 2-1 circle, as the full valve position. Therefore, the valve fully open position, according to the location of the gate that is to determine the trip. Some gate valve, stem nut set on the gate, hand wheel rotation to drive the stem rotation, leaving the gate to lift, this valve is called the rotary bar gate valve, or called the dark bar gate valve.
First, use: fluid pipe control device, the basic function is to turn on or cut off the flow of pipe media.
Applicable to power plant equipment, oil smelting, chemical raw material synthesis, natural crude oil extraction, natural gas extraction, oil shale mining, oil and petroleum products storage and transportation network and petrochemical industry, municipal water supply, urban construction, sewage Facilities and other industries, industrial and urban water supply and drainage, high-rise building pressurized water, fire booster, long-distance transport, HVAC refrigeration cycle, bathroom and other hot and cold water cycle pressurization. Sewage, engineering, sewage reuse engineering, environmental protection engineering, urban drainage engineering specialized equipment, mining, metallurgy, chemical, machinery, textile, paper, shipbuilding and other industries, oil, acid and alkali, corrosive and very Temperature liquid or medium transport, emissions and so on.
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