Ductile Iron Check Valve DN1400 Quality Guarantee China

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Technical Date	Material Specification
Nominal Diameter	DN40-DN1000	Valve Body	Cast Iron or Ductile Iron
Nominal Pressure	PN10/PN16	Valve Disc	Cast Iron or Ductile Iron or Stainless Steel
Operation Temperature	-40°C~225°C
Flange Driling Standard	EN 1902-2 PN10/16	Seal Material	EPDM OR NBR
Suface Treatment	Painting	Valve Spring	Stainless Steel

Standard or Nonstandard:	OEM	Structure:	Check	Pressure:	High Pressure, Low & high pressure
Power:	Manual	Material:	Casting, Ductile iron	Temperature of Media:	Medium Temperature
Media:	Water	Port Size:	2"-48"	Place of Origin:	Shanxi, China (Mainland)
Model Number:	WINDUS-BV-160409416	Brand Name:	WINDUS	Application:	General, Industry & Metropolis water treatment
Product name:	API 594 Cast Iron Double Door Wafer Check Valve	Dimension Range:	3"~48"	Certification:	UL, NSF61
Testing equipment:	Hydrolic testing machinging	Process:	Sand casting, machining, rubber lining	Port:	Tianjing, qingdao, Dalian,Shanghai
Place of Origin::	Shanxi, China (Mainland)

Packaging Details:

Plywooden case, metal pallet, iron frame

API 594 Cast Iron Double Door Wafer Check Valve

Type	API 594 Cast Iron Double Door Wafer Check Valve
Material	Body: gray iron ASTM A126 class B, ductile iron (optional) ASTM A536 grade 65-45-12 Disc:Stainless steel, AL Bronze alloy, ductile iron Seat: EPDM, buna-N
Main Process	Resin sand casting
Surface finish	Epoxy paint
Heat treatment	NONE
Weight Range	10~200 kg
Dimension Range	2"~48"
Application	Industry & Metropolis water treatment
Certification	UL, NSF61
Packing Detail	plywood box
Delivery time	30 days after order
Equipment	NC Lathing machine, NC Boring machine, Drilling machine
Testing equipment	Hydrolic testing machinging
Inspection	hydro test, shell test, seal test
Production capacity	10/60/100
Market	US
MOQ	1
Port	TianJing,qingdao,shanghai,beijing

Ductile Iron Check Valve DN1400 Quality Guarantee China

Q: Can the swing check valve stand upright?: Swing check valve, vertical mount, horizontal loading can be.Ordinary lift check valves shall not be erected. Lift check valves with springs can also be mounted.

Q: Does the tap water return to the water?: 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: What is the material of H41W-16's check valve?: According to: JB/T 308-2004 "valve type programming method"H check valve4 flange connection1 lift through straight through valve passageW sealing cover for body material16 nominal pressure PN16When the nominal pressure is less than or equal to PN16, do not mark the material code of the valve body, the valve body material is gray iron

Q: The difference between the plunger type check valve and the lift check valve: The two elastic seals are separated by a collar and secured to the sealing ring around the plunger by the load exerted by the valve cover nut on the valve cover. Elastic ring can be replaced, you can use a variety of materials, the valve is mainly used for "open" or "off", but with a special form of plunger or special ring can also be used to adjust flow.

Q: How can the PPR pipe be connected to the check valve?: The check valve and the PPR pipe are connected by two flanges to the clamp, and the clip type check valve and the two pipes (flanges) are clamped together directly with bolts.

Q: Use of fire pump adapter even before you install a check valve: Multifunctional pump combination device usually comes with safety valves and check valves, usually in the flange pipe interface or who is interface settings simple check valve, safety valve is white, but does not apply to the north, the northern cold, need to separate the pipes below plus a check valve, a higher temperature of the South may be suitable for direct use of non frozen.

Q: How many kinds of structure are there in the check valve?: 3 butterfly check valve structure similar to butterfly valve, its structure is simple, flow resistance is small, water hammer pressure is smaller;4, diaphragm type check valve has a variety of forms, are used as the opening and closing the diaphragm, due to its good waterproof performance, simple structure, low cost, rapid development in recent years, but the use of diaphragm valve temperature and pressure by the diaphragm material limited;

Q: How do I install the pump outlet check valve?: Installation of pump outlet check valves: swing check valves are generally mounted on horizontal pipes: for DN~80mm check valves, they can also be mounted on vertical or upward sloping pipes. The straight through lift check valve shall be installed on the horizontal pipe; the vertical lift check valve must be installed on the vertical pipe, and the medium shall be from bottom to top.

Q: An introduction to the check valve: The check valve, also known as reverse flow valve, check valve, back pressure valve, one-way valve. This kind of valve is automatically opened and closed by the force produced by the flow of the medium of the pipeline itself. It belongs to an automatic valve.

Q: What is the reason that the check valve does not stop water?: 7, when installing check valve, should pay special attention to medium flow direction, should make medium normal flow direction and the direction of the arrow on the valve body is consistent, otherwise it will cut off the normal flow of media. Valve should be installed at the bottom of the pump suction pipe.The general formula 8, lift check valve should be installed in horizontal pipe, vertical lift check valve and bottom valve is usually installed in a vertical pipe on the road, and the bottom-up flow of media.9, the check valve closes, will produce water hammer in pipeline pressure, will lead to serious damage to the valve and piping or equipment, especially for the big pipe or high pressure pipeline, it should pay attention to those who use check valve.

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