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: Circulating water check valve, I want to ask is not greater than DN600, you can use HBH747H hydraulic butterfly valve closed butterfly valve, less than DN600 of HD43X slow butterfly butterfly check valve, what does hydraulic check mean? Need hydraulic?: Greater than DN600, you can use HBH747H hydraulic butterfly butterfly valve closed, less than DN600 with HD43X slow butterfly butterfly check valveThis is the usual selection, not necessary, there is no provision, but this choice is not wrong. There are, of course, other types of check valves.The hydraulic check valve is hydraulic, and the Baidu library contains instructions for the HB series and the HD series hydraulic check valves

Q: Butterfly check valve should be equipped with special flange for butterfly valve: No, with a special appearance Jansen point flange butterfly valve. It can barely be installed without special flanges

Q: How to use the check valve when the size of the pressure?: When using check valves, the magnitude of the pressure shall correspond to the pressure level of the pipe

Q: Ball shaped sewage check valve pictures and working principle of the structure.: 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: What does the H/F/P stand for in the check valve H41H/H41F/H41P?: Respectively, the valve seat sealing surface is made of alloy / fluorine plastic / stainless steel.

Q: How do I use the triangle and check valves?: The triangle valve is used for connecting taps and water equipment. Check valves are used to prevent backflow of water.

Q: Tap water tank with vertical and horizontal check valve.: Extrusion includes seat and plate or piston designed to prevent the valve slamming. Additional material added to the seat produces two extrusion zones. Try to squeeze the fluid out of these areas and slow down the valve during rapid closing. But there is a price to pay for that. The limited gap increase region is an ideal site for collecting small solid particles. The squeeze pressure protection for controlled closure, due to the collection of solids, may cause additional problems, unless the gap is sufficiently extruded, the solids can be ejected. A narrow seal may shatter a fragile solid, such as coal. The extrusion zone tends to expand the width of the available valve seat and reduce the ability of the valve to crush solids. This effect must be considered, taking into account all the characteristics of the related solids.

Q: How do I install the pump outlet check valve?: Order note: 1. Pump outlet check valveProduct name and model number 2. Whether or not to take accessories for our correct selection. Use pressure. Use medium temperature.Two, if the company has been selected by the design unitPump outlet check valve type, please pump outlet check valveThe model is ordered directly from our sales department.Three, when the use of the occasion is very important or the environment is more complex, please try to provide design drawings and detailed parameters, by our valve company experts for your audit checks. If you have any questions: please call us for advice:,We will do our best to provide you with quality service.

Q: Check valve in the water pump when the sound of vibration is very large, what is the matter?: For the gas wall boiler heating system, the water from the water booster pump mouth must be installed on the gate for gas wall boiler heating system, water plus appropriate pressure to turn off the gas wall furnace, built in water supply valve, heating system, water flow

Q: Can the exhaust air outside the wall be fitted without a check valve?: The backflow valve of the exhaust fan is usually installed. It is a method to prevent the air flow from returning to the fan when it is stoppedIf your fan is just outside the wall, you can't install it,But if it is a blast of contaminated air or a dilution of dangerous air flow, it is better to have it installedCheck 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.

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