Cast Steel Trunnion Mounted Flange Ball Valve DN300

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Product Description:

Basic Info.
Connection Form:Flange
Channel:Straight Through Type
Structure:Floating Ball Valve
Type:Floating Ball Valve
Material:Carbon Steel /Stainless Steel
Application:Industrial Usage, Water Industrial Usage, Household Usage

Specification:

Size:1/2"-12"

Model:Q47F/Q347F

Pressure:150Lb-600Lb

Applicable Medium:  steam, water,  oil,etc

Material: WCB(GS-C25) WC6, WC9, LCB, CF8M, CF3M,ETC.

Operation:Lever,worm,electric,pneumatic

Standard:

Design and Manufacture: API 6D, ASME B16.34 ,DIN3352

Face To Face Dimension: ASME B16.10,API 6D

Flange Connection Dimension: ASME B 16.5

BW Connection Dimension: ASME B16.25

Test And Inspection: API 598, API 6D

Fire-safe Design: API 607/6FA

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Q:What are the main types of gate valves?
sealing surface configuration can be divided into wedge gate valve and parallel gate valve, wedge gate type valve can be divided into: single gate type, dual gate plate and the flexible gate type; parallel gate valve can be divided into single and dual gate gate plate.
Q:What does the gate valve 150# mean?
150Lb (American Standard pressure value corresponding to the PN2.0)
Q:What's the meaning of the gate valve model z41x 16Q?
Gate valve (Z) flange connection (4) wedge type single gate (1) rubber soft seal (X) -16 pressure) (Q)
Q:What gate DH10016, AM
The first Z represents the gate valve (the initial consonant of the Chinese phonetic alphabet for the gate); the second 2 represents the drive mode of the valve, that is, electro hydraulic drive.
Q:What are the specifications of the gate valves? Does the work pressure need to be marked separately?
5- dark pole single wedge gate valve, 6- dark bar wedge gate valve 7-, dark bar parallel gate valve, parallel gate valve 9- dark bar;5, sealing materials or lining materials were used R- T- austenitic stainless steel, copper alloy, X- rubber, S- plastic, N- nylon, F- fluorine plastic, H-Cr series stainless steel, hard alloy Y-, J- rubber, M- Monel alloy, Tc- ceramics;6, the body material code Z- K- gray cast iron, malleable cast iron, Q- ductile iron, copper and T- alloy, C- steel, P- chromium nickel stainless steel, R- stainless steel chromium nickel molybdenum, chromium molybdenum vanadium steel V-.For example: electric, flanged, rod wedge gate valve, sealing surface material by direct processing, nominal pressure PN0.1MPa of the valve body is made of grey cast iron gate valve: Z942W-1 electric wedge gate valve.
Q:Why does the centrifugal pump start and stop in the case of closing the gate valve?
Centrifugal pump to close the gate valve in the case of the start: the centrifugal pump power increases with its flow rate, when the flow is zero (valve closed), the minimum power to operate. Start the valve off from the angle of the motor. If the valve is started, the motor itself to start the current is larger, coupled with the power of the pump is also large, easy to cause the motor over-current trip, serious will burn the motor.
Q:Acid resistant alkali valve gate valve
A products have few connections and good overall steel quality.B closure speed is fast.C opening limit mechanism is convenient, flexible and precise.
Q:Gate valve Z41H-16Q generally used for what place?
It is a standard flanged gate valve with engineering pressure 1.6MPa. Generally used in chemical processes, of course, can also be used for municipal and civil engineering. The valve is generally used for cutting occasions fully open or fully closed, is not suitable for flow regulation.
Q:What is the difference between the cut-off valve and the gate valve?
What is the difference between gate valve and stop valve?:Gate valve and globe valve structure is different, the valve structure for hand wheel, with the stem rotating together to do the opening and closing movement. Valve structure is rotating handwheel, stem do lifting movement. The flow is different, the gate valve requires full open or full closed state, the cut-off valve does not need. The valve has the flow direction requirements, and the gate valve has no inlet and outlet requirements!Sealing performance comparison:Valve length is shorter than the cut-off valve, higher than the cut-off valve, the valve should pay attention to the installation of high elevation. The gate valve can be tightly closed with the sealing surface by the pressure of the medium so as to achieve the effect of not leaking.
Q:What is the wedge type gate valve wedge is what mean
According to the gate can be divided into the form of parallel wedge type. (1) wedge type gate. Wedge type gate the sealing surface of a certain angle with the vertical center line of the gate, the size of angle depends on the medium temperature and diameter size. General medium temperature is higher, and the greater the inclination angle is bigger, in order to prevent the temperature change when the gate is stuck, unable to open. Wedge gate sealing than the parallel well.

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