Check Butterfly Valve Suppliers and Manufacturers

The butterfly-shaped buffer check valve is composed of a valve body, a valve clack, a buffer device and a micro-regulating valve. The product has the characteristics of novel structure, small volume, small fluid resistance, stable operation, reliable sealing, abrasion resistance, good buffer performance and the like, and is mainly used for industrial water supply and water pump outlet of the sewage treatment plant, and the medium in the pipe network is prevented from flowing reversely. The destructive water hammer is automatically eliminated, so that the water pump and the pipeline are not damaged The butterfly type buffer check valve can be divided according to its structure and installation mode. 1. The disc of the butterfly buffer check valve is disc shaped and rotates around the rotating shaft of the seat passage. Because the inner channel of the valve is streamlined and the flow resistance is smaller than that of the lifting butterfly check valve, it is suitable for large caliber situations with low velocity and irregular flow, but not suitable for pulsating flow, and its sealing performance is not as good as that of lifting type. Butterfly check valve is divided into three types: single valve type, double valve type and multi half type. These three forms are mainly divided according to valve caliber, in order to prevent the medium from stopping flow or backflow, and to reduce the hydraulic impact. 2, butterfly buffer check valve: disc sliding along the vertical center line of the valve body check valve, the internal thread check valve can only be installed on the horizontal pipe, in the high pressure small caliber check valve disc can use a ball. Butterfly check valve body shape is the same as globe valve (can be used with globe valve), so its fluid resistance coefficient is large. The structure is similar to the globe valve, and the valve body and disc are the same as the globe valve. The upper part of the disc and the lower part of the cover are machined with a guide sleeve, and the disc guide can be lifted and lifted freely in the guide simple of the valve. When the medium flows down, the disc is opened by the medium thrust, and when the medium stops, the disc falls on the seat from drooping, which plays the role of preventing the media countercurrent. The direction of the medium inlet and outlet channel of the straight butterfly check valve is perpendicular to the direction of the valve seat channel, and the direction of the medium inlet and outlet channel of the vertical lifting check valve is the same as that of the valve seat channel, and its flow resistance is smaller than that of the straightway type.

Various sizes of Gate- Globe- Check- Butterfly- and Ball valves Carbon steel, stainless steels and high alloy

FOB Price: US $20.0 - 2,000 / Set Min.Order Quantity: 1 Set/Sets Ductile iron DN80 Wafer Type Buttefly Disc Check Valve Supply Ability: 20000 Ton/Tons per Year Ductile iron DN400-400 Buttefly Disc Check valve.supply is large Port: TIANJIN XINGANG/SHANGHAI PORT/NINGBO PORT Payment Terms: L/C,T/T,Western Union,MoneyGram,Amount less than 500$,we just accpt 100% payment. Quick Details Standard or Nonstandard: Standard Structure:Check Pressure: Low Pressure Power: Manual Material: Ductile iron Check valve Temperature of Media: Medium Temperature Media: Base Port Size:DN40-DN400 Place of Origin: Hebei, China (Mainland) Model Number: DH77X wafer butterfly check valve Brand Name:  PYL Application: General Name of product: Ductile iron DN80 Wafer Type Buttefly Disc Check Valve Material of product: Ductile iron check valve IItem Number: DH77X Type of product: wafer butterfly check valve Pressure of product: PN10/pn16 Size of product: DN40-DN400 Authenication of product: ISO9001$14001 Medium: Water./non-corrosive liquid Factory History: Since 1996s Natural of company: Manufacture Packaging & Delivery Packaging Details: Woven bag, wooden box, wooden pallet with plastic film, container (we can change the shape of the packaging according to customer requirements) Delivery Detail: Shipped in 30 days after payment Main parts and materials of Ductile ironGrey Iron DN80-400 Wafer Type Butterfly Disc Check Valve Part. Name Material Valve Body/Bonnet Stainless Steel Ball/Stem 2Cr13 Seal ring F4 stainless steel The main vlalve products of our company include (1) ANSI gate valve, DIN gate valve, GOST gate valve, Soft sealing gate valve, Knife gate vave, Flat gate valve (2)Wafer type butterfly valve, flange type butterlfy valve, single eccentric butterfly valve, double eccentric butterfly valve, Three eccentric buterrfly valve (3)Check valve, lift check valve, swing check valve, wafer type check valve, spring check valve (4) ball valve, tee ball valve, 4 way ball valve, welding ball valve (5)strainer, filter, Y type strianer Materials WCB A216 ; Q235,ST37 ; LBC/LCC ; WC6/WC9 ; WCC ; CA15 A217 ; M-30C ; H.B/H.C ; HT250/GG25 ; GGG40 ; SS304 ; SS304L ; SS316 ; SS316L THE MAIN TYPE AND MATERIAL OF OUR VALVE Every valve must be tested before the delivery, the test including strength test and the enclose testing We also provide OEM services to customers in order to produce the strongest support. If you have any questions or you are interested in our products,please don't hesitate to cantact us!!!

Castiron butterfly valves Castiron butterfly valves from DN50-DN500. Packed in cartons and cartons in polywood box.

Cast iron butterfly valves, butterfly check valves DN50-DN500. Butterfly valves packed in plastic bags and packed in plywood box.

Trim : Cast Iron/Ductile Iron/SS 304/ SS 316 Rating : 150#, soft seated and metal seated Concentric wafer type: Size 40 mm – 600 mm Lug type : Size 40 mm to 600 mm Eccentric flanged end : Size 50 mm – 1200 mm Double Eccentric flanged end : Size 50 mm – 1200 mm Triple Eccentric – Size 50 mm – 1200 mm

KS-JIS Cast Iron Butterfly Valve is a kind of valve conforming to the specification of Korean and Japanese Industrial Standard (KS-JIS), which is usually used in industrial fluid piping system to regulate fluid flow and realize fluid shut-off. Made of cast iron material, this valve is characterized by corrosion resistance, simple structure, and flexible operation, and is suitable for a wide range of media and working environments.

KS-JIS Cast Iron Butterfly Valve is a kind of valve conforming to the specification of Korean and Japanese Industrial Standard (KS-JIS), which is usually used in industrial fluid piping system to regulate fluid flow and realize fluid shut-off. Made of cast iron material, this valve is characterized by corrosion resistance, simple structure, and flexible operation, and is suitable for a wide range of media and working environments.

KS-JIS Cast Iron Butterfly Valve is a kind of valve conforming to the specification of Korean and Japanese Industrial Standard (KS-JIS), which is usually used in industrial fluid piping system to regulate fluid flow and realize fluid shut-off. Made of cast iron material, this valve is characterized by corrosion resistance, simple structure, and flexible operation, and is suitable for a wide range of media and working environments.

KS-JIS Cast Iron Butterfly Valve is a kind of valve conforming to the specification of Korean and Japanese Industrial Standard (KS-JIS), which is usually used in industrial fluid piping system to regulate fluid flow and realize fluid shut-off. Made of cast iron material, this valve is characterized by corrosion resistance, simple structure, and flexible operation, and is suitable for a wide range of media and working environments.

Trim : 13% Cr. / SS 304 / SS 316 / SS 304 L / SS 316 L / Alloy 20 Class 150# : Size 2” – 28” Class 300# : Size 2” – 20” Class 600# : Size 2” – 16” Class 900# : Size 2” – 10” Class 1500# : Size 2” – 8”

Why are check valves important? What is the purpose of the check valve? If you need fluid to flow through a pipe in one direction, you can't do without them. Check valves are designed with a two-way system with openings that allow fluid to pass through. After the flow has passed, the valve closes to prevent backflow. Check valves can also close automatically if downstream pressure is excessive. Common uses of check valves: Water and waste pumping systems Water pipe Sewage treatment system Heating system Fire hose Marine and naval industries Oil and gas pipelines Flush toilet device There are many different types of check valves, including rotary check, lift check, piston check, and ball check.

What Is a Check Valve? Check valves are usually installed in the pipeline to prevent backflow. A check valve is basically a one-way valve in which the flow can flow freely in one direction, but if the flow turns, the valve will be closed to protect the piping, other valves, pumps, etc. If the flow is diverted without a check valve installed, a water hammer may occur. Water hammer often occurs with extreme force and can easily damage pipes or components. Check Valve Definition A check valve is a fundamental component in fluid systems, playing a crucial role in regulating the flow of liquids or gases. This simple yet essential device prevents backflow and maintains the desired direction of fluid movement. Understanding the function and types of check valves is essential for engineers, manufacturers, and anyone involved in fluid control systems. How Does a Check Valve Work? Check valves operate on a straightforward principle: allowing fluid to flow in one direction while preventing reverse flow. The valve consists of a movable mechanism, often a disk or a flap, and a body with an inlet and an outlet. When the fluid flows in the intended direction, the mechanism opens, enabling the fluid to pass through. However, when there is a reversal in flow, the mechanism closes, preventing the fluid from going backward.