high quality ductile iron cast iron flanged swing check valve

high quality ductile iron cast iron flanged swing check valve System 1

high quality ductile iron cast iron flanged swing check valve

Ref Price:: $30.00 - 200.00 / set

Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 50 set

Supply Capability:: 4000 set/month

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Quick Details
Standard or Nonstandard:	Standard	Structure:	Check	Pressure:	Medium Pressure, 1.0Mpa, 1.6Mpa,2.5Mpa,4.0mpa
Power:	Manual	Material:	Casting, cast steel,WCB, stainless steel, ect.	Temperature of Media:	Normal Temperature
Media:	Water	Port Size:	DN15-DN300	Place of Origin:	Tianjin, China (Mainland)
Model Number:	Bell	Brand Name:	CMAX	Application:	General
Name:	high quality ductile iron cast iron flanged swing check valve	Connection:	Flange	Temperature:	≤425℃
Standard:	GB,BS,ANSI,JIS,DIN,etc	OEM:	Acceptable	Color:	Customized
Certification:	ISO,CE	Warranty:	12 month

Quick Details
Standard or Nonstandard:	Standard	Structure:	Check	Pressure:	Medium Pressure, 1.0Mpa, 1.6Mpa,2.5Mpa,4.0mpa
Power:	Manual	Material:	Casting, cast steel,WCB, stainless steel, ect.	Temperature of Media:	Normal Temperature
Media:	Water	Port Size:	DN15-DN300	Place of Origin:	Tianjin, China (Mainland)
Model Number:	Bell	Brand Name:	CMAX	Application:	General
Name:	high quality ductile iron cast iron flanged swing check valve	Connection:	Flange	Temperature:	≤425℃
Standard:	GB,BS,ANSI,JIS,DIN,etc	OEM:	Acceptable	Color:	Customized
Certification:	ISO,CE	Warranty:	12 month

Product Feature:

1, the disc lift check valve disc, seat around tunnel axis rotation, due to the channel into a streamline in the valve, flow resistance is smaller than l butterfly check valve, suitable for low velocity and flow not often change the large diameter of occasions, but should not be used for oscillating flow, its sealing performance than lift.Butterfly check valve points single type, double disc type and for the most part three, the three forms mainly by the valve diameter, the purpose is to prevent the backflow medium flow or stop, decrease hydraulic shock.

2, lift check valve: disc revolve around pin in the seat of the check valve.Disc check valve has simple structure, can only be installed in horizontal pipe runs, sealing is good.
3, lift check valve: disc sliding along the center line of the body of the valve.Pipeline check valve is a new kind of valve, its small size, light in weight and good processing technology, is one of the check valve development direction.But the fluid drag coefficient is slightly superior to swing check valves.

high quality ductile iron cast iron flanged swing check valve

Main performance parameters:
Nominal pressure	PN1.6/2.5/4.0Mpa
Suitable temperature	≤425℃
Applicable medium	Water, oil, gas, corrosive medium, etc
Main components	valve body, valve cover, valve, gasket
main material	Cast iron, ductile iron, carbon steel, stainless steel

Type	DN(mm)	Dimension(mm)
Type	DN(mm)	L	D	D1	D2	z-Φd	H
HH41W-16Y	15	130	95	65	45	4-Φ14	90
	20	150	105	75	55	4-Φ14	105
	25	160	115	85	65	4-Φ14	115
	32	180	135	100	78	4-Φ18	120
	40	200	145	110	85	4-Φ18	130
	50	230	160	125	100	4-Φ18	140
	65	290	180	145	120	4-Φ18	150
	80	310	195	160	135	8-Φ18	170
	100	350	215	180	155	8-Φ18	185
	125	400	245	210	185	8-Φ18	195
	150	480	280	240	210	8-Φ23	225
	200	600	335	295	265	12-Φ23	250
	250	650	405	355	320	12-Φ25	270
	300	750	460	410	375	12-Φ25	300
HH41W-25Y	15	130	95	65	45	4-Φ14	90
	20	150	105	75	55	4-Φ14	105
	25	160	115	85	65	4-Φ14	115
	32	180	135	100	78	4-Φ18	120
	40	200	145	110	85	4-Φ18	130
	50	230	160	125	100	4-Φ18	140
	65	290	180	145	120	8-Φ18	150
	80	310	195	160	135	8-Φ18	170
	100	350	230	190	160	8-Φ23	185
	125	400	270	220	188	8-Φ25	165
	150	480	300	250	218	8-Φ25	225
	200	600	360	310	278	12-Φ25	250
	350	650	425	370	335	12-Φ30	270
	300	750	485	430	390	16-Φ30	300
HH41W-40Y	15	130	95	65	45	4-Φ14	90
	20	150	1058	75	55	4-Φ14	105
	25	160	115	85	65	4-Φ14	115
	32	180	135	100	78	4-Φ18	120
	40	200	145	110	85	4-Φ18	130
	50	230	160	125	100	4-Φ18	140
	65	290	180	145	120	8-Φ18	150
	80	310	195	160	135	8-Φ18	170
	100	350	230	190	160	8-Φ23	185
	125	400	270	220	188	8-Φ25	195
	150	480	300	250	218	8-Φ25	225
	200	600	375	320	282	12-Φ30	250
	250	650	445	385	345	12-Φ34	270
	300	750	510	450	408	16-Φ34	300

high quality ductile iron cast iron flanged swing check valve

Q: Automatic water tower water reflux, plus a check valve not supposed: Check the direction of the installation is correct, check valve quality is good, you can install two check valve. Check valve refers to rely on the flow of the media itself and automatically open and close the valve flap, used to prevent media backflow valve, also known as check valve, one-way valve, counter flow valve, and back pressure valve. The check valve belongs to an automatic valve, whose main function is to prevent the backflow of medium, prevent the reverse of pump and drive motor, and release the container medium.

Q: Check valve can not stop water, how to solve?: See if there is anything dirty inside! See if the valve is broken!

Q: Why can't the check valve on the air pipe be used when the wind speed is less than 8 meters?: First of all, you must understand the working principle of the check valve, indeed, as you said, you can adjust the position of the hammer by adjusting the position of the drop hammer.If you are in their own design and production, consider the thickness of the blade, drop hammer size, weight, and other parameters considered.Hope to be of help to you!

Q: How much is the 6 point check valve for the water pipe at home?: Different places, different prices, it is estimated that 20-30 copper. Complete check is impossible, and the effect depends on the actual situation,

Q: How can the lift vertical check valve be distinguished from the lift horizontal check valve?: 1, vertical lift check valve should be installed on the vertical pipe. 2, lift type horizontal check valve should be installed in the horizontal pipe.Vertical lift check valve, also known as vertical check valve;Lifting horizontal valve check valve, also known as horizontal check valve.Lift check valve: check valve sliding along the vertical centerline of valve body, lift check valve can only be installed on horizontal pipe,Disc can be used in high pressure small bore check valve. The valve body of the lift check valve is the same as the cut-off valve (which can be used with the stop valve), so it has a large coefficient of fluid resistance. The structure is similar to the cut-off valve, the valve body and the disc are the same as the cut-off valve. The lower part of the upper valve and the valve cover processing guide sleeve, the valve in the valve lift free guide simple simple light driven, when the medium downstream, the valve by the media force open, when the media stopped flow, the valve by the self vertical landing on the seat, preventing the media from the upstream effect.Through lift check valve, the direction of inlet and outlet of medium is perpendicular to the direction of valve seat passage;Vertical lift check valve, the direction of its medium inlet and outlet passage is the same as that of valve seat passage, and its flow resistance is smaller than straight through.

Q: Installation position of household water meter check valve: Generally installed after the water meter.The main reason: if the water point is higher than the water meter installation position, once the pipe network in the absence of water, the remaining water in the pipeline will flow in the direction of the water meter in turn. This will cause the water meter to reverse and cause damage to the water meter.A check valve is installed after the water meter, so that the situation can be avoided.

Q: What is the purpose of installing a check valve in the air pipe before the fan?: Check valveRefers to rely on the flow of the media itself and automatically open and close the valve, used to prevent media backflow valve, also known as check valve, one-way valve, counter flow valve, and back pressure valve. The check valve belongs to an automatic valve, whose main function is to prevent the backflow of medium, prevent the reverse of pump and drive motor, and release the container medium.?

Q: Tap water tank with vertical and horizontal check valve.: Look at your pipe installation position, if it is vertical, of course, the vertical check valve is good, if it is horizontal, of course, choose a horizontal check valve.The function of the check valve is to ensure the flow of the fluid in one direction. The moving parts are usually pressed against the seat to form a seal. Small pressure must be applied to moving parts to open the valve. Once opened, fluid power is generated to allow the valve to open or increase opening. Before the valve closes, fluid flow must stop. Fluid power generated by fluid flow prevents all valves from closing. The spring can be used or not to control the opening and to close it. Some check valves rely solely on gravity to provide closing force. Valves that rely on gravity must be installed according to the manufacturer's instructions. If horizontal pipes are laid, the slope of a short distance local pipe must be changed.The swing check valve is powered by gravity. When the valve is opened, the force required to control the valve opening is increased. If the balance between disc weight and fluid dynamic force is incorrect, the valve will not be fully opened. Increasing flow speed may cause unexpected corrosion or erosion damage, so gravity driven valves must be used to meet operating conditions.When the valve is fully opened, the disc or piston stroke must be limited by the stopper. Fully open valve, but not limited, the valve is easy to vibration. Vibration may cause hinge pins or pistons to wear rapidly. Valves using springs may suffer from early spring faults (caused by fatigue). Vibration may be caused by vortices or disturbances. When the fluid has some viscosity, the fluid damping can control the vibration. Valves with springs may be fitted with different rigid springs. If the full stroke stops, including extrusion, to prevent backlash after rapid opening, this can be an effective vibration damper.

Q: Ask questions about the installation of check valves after water meters: Generally installed after the water meter. The main reason: if the water point is higher than the water meter installation position, once the pipe network in the absence of water, the remaining water in the pipeline will flow in the direction of the water meter in turn. This will cause the water meter to reverse and cause damage to the water meter. A check valve is installed after the water meter, so that the situation can be avoided.

Q: What are the main types of check valves?: Two, noun explanation:The opening and closing parts depend on the flow of the medium and the power is turned on or off by itself. The valve that prevents the backflow of the medium is called a check valve. Check valves belong to the automatic valve, mainly used for one-way flow of media channels, allowing only medium to flow in one direction, to prevent accidents.

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