DN50 Cast Iron Rubber Gate Valve with long stem

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Size:DN40mm-600mm

Design standard: DIN 3352/BS 5163/AWWA C509/JIS B2043

Test standard: DIN3230/BS 6755/AWWA C509/JIS B2003

End flange standard: DIN 2533 PN16/BS 4504 PN16/ANSI 150LB/JIS B2212 10K

Face to face standard: DIN 3202 F4/DIN 3202 F5/BS 5163/ANSI 16.10/JIS B2002

Body: Ductile iron/GGG50/A536

Wedge: Ductile iron+EPDM/Ductile iron+NBR

Stem: Brass/SS416/2Cr13

Bonnet: Ductile iron/GGG50

Handwheel: Ductile iron/GGG50

The products are widely used in water source projects, urban water supply and drainage, sewage treatment, eletric power, petroleum, petrochemical, heat supply, shipbuilding, medicine and metallurgy industries. Equipment are used for regulating or cutting off media in pipelines. Suitable media include water sewage, sea water, air, foodstuff and oil. Suitable for gear operators, electric and pneumatic control actuators.

DN50 Cast Iron Rubber Gate Valve with long stem

Q: What is the standard length of GB steel gate valve?: 1, product standardsGeneral purpose valves, flanged connections, iron gate valves, GB/T 12232-2005General requirements for steel valves GB/T 12224-2005"Steel flat gate valves for pipelines" JB/T 5298-91Inspection and test of valves. JB/T 9092-1999Standard for safety evaluation of drinking water distribution equipment and protective materials GB/T 17219-1998

Q: What's the difference between open rod gate and dark rod gate valve?: 4, the dark pole gate valve height smaller size; Ming rod gate valve requires a larger installation space;5, the structure of the rod gate valve is beneficial to the lubrication of the valve stem, and the degree of opening and closing is obvious. The stem thread of the dark rod gate valve is not only unable to lubricate, but also directly accepts the medium erosion and is easy to damage. Therefore, the open bar gate valve is used more widely

Q: Stainless steel gate valve DN150 200300 weight, who knows?: The weight of DN150/200/300 is 134/192/379kg. Of course, different manufacturers may vary in weight, but not much.It's not that heavy at all

Q: What does gate valve do?: Valve in the pipeline can only be fully open and fully closed off, can not be adjusted and the throttle. Gate valve is a valve used in a wide range, generally more than 50mm caliber DN block device is selected it, sometimes cut off very small aperture devices are used to gate valve, gate valve is used as cut-off media, when in full flow through the whole, when the media is running a minimal pressure loss. Gate valves are normally used in situations where they do not need to be frequently opened and closed, and the gate is fully open or fully closed. Not used as an adjustment or throttling. For high speed moving medium, the gate can cause the vibration of the gate under the condition of partial opening, and the vibration may damage the sealing surface of the gate and the valve seat, while throttling will cause the gate to suffer the erosion of medium.

Q: What do you mean by forged steel gate valves 800LB DN20 SW?: Is the forged steel gate 800LB is DN20 on SW welding pressure

Q: Is the gate valve flanged?: The most commonly used gate valves are threaded connections, flanged connections, and welded connections.Like the outer thread connection, the clamp connection, the card sleeve is seldom used.

Q: What is the wedge type gate valve wedge is what mean: It can be used on high pressure gate valve. Wedge gate and elastic wedge gate, gate and double gate. A, elastic ram. A circular groove is machined on the vertical bisector surface of the gate so that the gate plate has a certain elasticity. It is this elastic deformation, the gate is closed, the compensation gate sealing surface and the valve seat sealing surface between the wedge angle deviation, the arrival of good agreement, to ensure the sealing. Resilient gate valve sealing surface reliable. Applicable to a variety of pressure and temperature of small and medium-sized gate valve, requiring medium containing solid particles to less, in order to prevent congestion in the gate ring groove, affecting the flexibility of sealing.

Q: What is the difference between the cut-off valve and the gate valve?: Selection of stop valve:There are two ways to install the valve, one is the media flow from the top of the spool, the advantage is that when the packing is not under pressure, the pressure can be replaced before the valve packing, there is a long service life characteristics. Another is the media from the bottom of the spool into, and its shortcomings are driving torque is large, is 1 times above the flow, the stem by the axial force of large, easy to bend the stem. Generally suitable for small caliber manual stop valve, to stop the valve closed, the media acting on the spool of force is not greater than 350kg limit. Electric cut-off valve is generally used to enter the media from the top way.Selection of gate valve and stop valve:Valve than the valve structure is simple, better sealing, manufacturing and maintenance to be convenient; shortcomings are fluid resistance, power, and opening and closing efforts. Gate valve, stop valve are fully open, fully closed valve, suitable for making cut off, it is not suitable for use as regulating valve. The application process should pay attention to the characteristics of the valve when selecting. Small pipes and better sealing performance generally use cut-off valve; in the steam system and large diameter pipeline, due to fluid resistance is small, suitable for use gate valve.

Q: Gate valve z11h/y-16 what does that mean?: Product Name: internal thread gate valveItem number: Z11HProduct specification: DN15-50Product pressure: 1.6MPa-2.5MPaMaterial: cast iron, cast steel, stainless steelInternal thread gate valve nominal pressure 2.5Mpa, applicable temperature range -20-232-350, applicable medium: water, oil, gas and certain corrosive liquid (W.O.G), thread type G.NPT.BSPT.BSP.DIN259/2999.

Q: The legend of gate valve and stop valve: When the valve is installed, the medium can enter from the bottom of the valve core and enter the two way from the top. Medium from the spool into the advantages of the valve closed when the packing is not under pressure, can extend the service life of the packing, and can be pressure in front of the valve in the case of replacement of packing work. Medium from the spool into the bottom of the shortcomings of the valve driving torque is larger, about 1.05~1.08 times above the entrance, the stem by the axial force of large, easy to bend the stem. To this end, the media from below to enter the way, generally only applicable to small caliber manual stop valve, to the valve closed, the media acting on the spool of force is not greater than 350kg limit. Electric cut-off valve is generally used to enter the media from the top way. The disadvantage of the medium entering from the top is just the opposite of the way it is entered below.Compared with the gate valve, the utility model has the advantages of simple structure, good sealing performance, and convenient manufacture and maintenance. The disadvantage is that the liquid resistance is large, and the opening and closing force is large. Gate and globe valves are fully open closed type valve, cut off or connected as the medium use, not as a control valve.The range of application of stop valves and gate valves is determined by their characteristics. In the smaller passages, the cut-off valve is used when required for better shutoff; in the steam pipe and the large diameter water supply pipe, the gate valve is generally used because of less fluid resistance.

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