GATE VALVE KNIFE DUCTILE IRON DN50-DN2000

GATE VALVE KNIFE DUCTILE IRON DN50-DN2000

Ref Price:: $50.00 - 1,000.00 / pc

Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 1 pc

Supply Capability:: 9999 pc/month

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Quick Details

Standard or Nonstandard:	Standard	Structure:	Gate	Pressure:	Medium Pressure
Power:	Manual	Material:	Casting	Temperature of Media:	Normal Temperature
Media:	Water	Port Size:	DN50-DN2000	Place of Origin:	Tianjin China (Mainland)
Brand Name:	CMAX	Nominal diameter::	DN50-DN2000	Working pressure::	PN10/PN16/PN25
Valve Design::	MSS-SP81	Face-to-face::	MSS-SP81	Flange accommodation::	ANSI;DIN ;BS ;JIS;GB
Test Standard::	MSS-SP81;API 598

Description:
Nominal diameter: DN50–DN2000
Working pressure:PN6/PN10/PN16/CL125/CL150
Valve Design: MSS-SP81
Face-to-face: MSS-SP81;
Flange Standard: ANSI;DIN ;BS ;JIS;GB
Test Standard: MSS-SP81;API 598;

Nominal Diameter DN		DN50-2000	DN50-2000	DN50-2000	MM
Nominal Pressure PN		0.6	1.0	1.6
Test Pressure	Seal test	0.67	1.1	1.1	Mpa
	Sheel test	9	1.5	1.5
Working Tempertaure		-29~235			℃
Suitable Medium		Cement, Paper Pulp,Sewage,Water, Oil etc.

No.	Part	Material
1	Body	Ductile Iron,WCB,SS
2	Disc	SS201,SS304,SS316,SS316L
3	Shaft	SS420, SS304,SS316,SS316L
4	Seat	EPDM,NBR,Viton,Metal
5	Stem nut	BRASS
6	Filler	PTFE
7	Yoke	Carbon steel, SS304,SS316;

GATE VALVE KNIFE DUCTILE IRON DN50-DN2000

Q:greater than DN50 of the pipeline butterfly valve?: Heating butterfly valve is flanged connection. Pressure capacity is stronger than gate valve and stop valve. For connection safety, do not use gate valve and stop valve wire connection

Q:What does the gate valve SZ45X-1.0 stand for?: Z- stands for gate valves, 4 for flange connections, 5 for wedge wedge single gate, X for rubber seals, and 1.0- for PN1.0MP

Q:What do gates, Z15T-10, Z15W-16T, Z45T/W-10, Z41T-10 mean?: Z15T stands for manual, internal thread connection, dark wedge single gate. The sealing surface is made of copper alloy. The nominal pressure is PN1MPa;Z15W-16T for manual, internal thread connection, dark wedge type single gate, the valve body material is copper alloy, the valve seat sealing surface material directly processed by the valve body, nominal pressure is PN1.6MPa;Z45T/W-10 stands for manual, flange connection, dark wedge single gate. The valve body is made of copper alloy, and the valve seat face material is directly machined by the valve body. The nominal pressure is PN1MPa;Z41T-10 stands for manual, flange connections, plain wedge single gate, sealing surface material is copper alloy, nominal pressure is PN1MPa.According to domestic valve model standards, the valve model is by the valve type, gate valve drive mode, gate valve connection, gate valve structure, sealing material, valve body material code to indicate

Q:What is the difference between cut-off valve and gate valve?: Simply put, the cut-off valve is one-way, only into, do not give up, the valve is two-way

Q:Notes on flat gate valves: internal structureThe 1 seat O ring seal and preload floating seat structure, so that import and export of two-way valve seal plate; and the structure of the normal valve opening and closing torque only 1/2, can easily open and close valves2. when fully open, the channel is smooth and straight, the flow resistance coefficient is extremely small, and there is no pressure loss. The pipeline can be cleaned through the hair bulb3 the packing structure with the ability of self sealing, without frequent adjustment, opening and closing very lightweight, and reliable seal, the stuffing box is arranged at the auxiliary seal oil into the structure, absolutely reliable sealing performance, thereby achieving zero leakage; solve the shortcomings of the general valve packing leakage of the most vulnerable4., when the flat gate valve is closed, it can automatically unload the inner cavity high pressure, and ensure the safe use5., fully enclosed structure, good protection performance, can adapt to all-weather requirements6., the valve seat sealing structure should be elastic, preload, upper and lower sealing seat at the same time sealed structure. The valve seat and the seal are always face to face sealed.The 7. seat has self-cleaning function and is free of direct airflow during valve opening or closing. The seat shall be made of lubricated, non wearing material.8. valve actuator failure will not affect the other parts of the valve, maintenance and replacement work can be carried out without removing the valve.9. yoke sleeve aluminum bronze yoke sleeve with pin type thrust bearing to minimize operation torque.10. stem - thread length until bracket; dowel and spot welding; stability.11. pressure seal - simple construction, with sectional retaining rings and silver plated low carbon steel gaskets, helps to remove and achieve the best bonnet seal.12. seat ring - welded seat ring is perpendicular to the flow channel and is easy to maintain.

Q:What kind of valve is gate valve? Is it different from the cut-off valve?: Gate valve and the role of the cut-off valve, are playing a role in isolation. The difference is that the gate valve and the cut-off valve are constructed differently. Fluid from the gate valve flow and flow direction is straight, there is no change in direction, but in the cut-off valve is from the bottom of the valve flow into the flow from the upper part of the spool.

Q:What is the difference between the cut-off valve and gate valve, the general will use the cut-off valve instead of gate valve: Yes. Globe valves and gate valves are indeed common in certain piping and operating conditions.

Q:What does gate valve do?: Gate valve structure, upstairs said about the same, but it can only rough adjustment flow, you may drive it to 30%, he will flow through 65% traffic, you can drive him to 70%, he also flow through 75% traffic. However, the fluctuation is small and can be used for rough adjustment of flow. What's more, half open and half closed are some of the effects on their life span.

Q:The legend of gate valve and stop valve: The working principle is different. The stop valve is an upward stem type, and the handwheel rotates and rises with the stem. Valve is hand wheel rotation, stem upward movement. Flow is not the same, the gate valve requires full open, the cut-off valve is not the same. The gate valve has no inlet and outlet direction requirements, and the cut-off valve has the required inlet and outlet!Gate valve and stop valve are shut-off valve, is the most common two valves.From the exterior, the gate valve is shorter than the cut-off valve, especially the bar valve needs a higher height space. Valve sealing surface has a certain degree of self sealing capacity, its spool depends on the media pressure tight contact with the valve seat sealing surface, to achieve tight leakage. Wedge gate valve spool angle is generally 3~6 degrees, when forced to shut down excessive or temperature changes of the valve core is easy to die. Therefore, high temperature and high pressure wedge gate valve, in the structure have taken certain measures to prevent spool stuck. The valve in the opening and closing valve and valve seat sealing surface contact and mutual friction is always so easy to wear sealing surface, especially in close off the valve, the valve before and after the great pressure, sealing surface wear is more serious.

Q:What does gate z41t-10 150 mean?: According to JB/T308-2004 "valve type programming method"Z gate valve4 flange connection1 Ming wedge single gateT sealing cover material is copper alloy10 nominal pressure PN10PN16 below no marked valve body code, body material is gray cast iron150 nominal size DN150

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