Butterfly Valve
We are a butterfly valve manufacturer. Our main products api6d/ api600 / api 6a gate, ball, globe, check valve, forged steel valve and butterfly valves,our metallurgy include, carbon steel, stainless steel, alloy steel, duplex and super duplex stainless steel, and exotic alloys such as inconel.
Why Choose Us
Our Factory
Founded in the year 2004 with testing and assembly facilities in malaysia, milano,italy and houston , texas ,our team of 100 detailed orientated and dedicated workers provide superior workmanship.
Production Technology
Our manufacturing capacity has over 193, 000 square feet of workspace, 105 sets of machines that can easily assemble, overlay, and machine valves from ½"- 60" inch classes ranging from 150lb to 2500lb.
Production Standards
Valpro delivers worldwide, and proudly adher to all international standards such as astm, ansi, din, bs, nace and mss.
Our Service
Introduce our products to customers and assist customers in engineering planning and system demand analysis, so that our products can meet the needs of users to the greatest extent.
Lightweight And Compact
Butterfly valves are great for several applications because they are very lightweight and provide reasonable flow control in a compact design. You will generally want to use a metal-seated valve for more extreme fluid processing, while a soft-seated butterfly valve is best for applications with low pressures and temperatures. The butterfly disc takes up little space but offers enough strength for most pump systems.
Simple And Cost Effective
Butterfly valves are very simple in design and have minimal maintenance requirements. They are easy to install and operate. Plus, they are typically much less expensive than a ball valve of the same size. They do not require much torque to operate effectively and can be automated for energy-efficient operation.
Quick And Efficient
The 90-degree turning radius allows for quick sealing upon actuation, which provides more accurate flow control with minimal effort to turn the valve on and off. Different butterfly valves are to consider, including zero-offset, double-offset, and triple-offset. The pressure will usually determine which type you need. The higher the offset, the more pressure the valve can handle.
Pressure Control
In addition to precision flow control, butterfly valves are excellent for pressure control. They experience minimal pressure drop during operation before the fluids recover energy quickly after leaving the valve. This keeps the pump system running efficiently with consistent fluid pressures.
Types of Butterfly Valve
Flanged Butterfly Valve
A flanged butterfly valve is a type of valve featuring a disc that rotates around a central axis, controlling flow through a pipe by opening or closing. It is characterized by flanged ends that allow for easy installation between pipe flanges, ensuring a secure connection.
U Type Butterfly Valve
U-type butterfly valve adopts the top mounted structure, which reduces the connecting bolts of the valve body under the condition of high pressure and large diameter, enhances the reliability of the valve,and can overcome the influence of the system self weight on the normal operation of the valve.
Bare Stem U Type Butterfly Valve
Bare stem u-type butterfly valve adopts the top mounted structure, which reduces the connecting bolts of the valve body under the condition of high pressure and large diameter, enhances the reliability of the valve,and can overcome the influence of the system self weight on the normal operation of the valve.
Centerline Flange Butterfly Valve
Flange centerline butterfly valve is usually used for regulating flow and cutting off fluid on water supply and drainage and gas pipelines such as food,medicine,chemical industry, petroleum,electric power,light textile and papermaking with temperature ≤ 120 ℃ and nominal pressure ≤ 1.6mpa
Soft Seal Butterfly Valve
Soft seal butterfly valve, as a component used to realize pipeline system cut-off and flow control, has been widely used in many fields such as petroleum, chemical industry, metallurgy, hydropower and so on. In the well-known butterfly valve technology, its sealing form mostly adopts sealing structure.
Lining Butterfly Valves
Lined butterfly valve uses the butterfly plate rotating with the valve stem as the opening and closing part to realize the opening, closing and adjustment of the valve. At the same time, the butterfly valve has the advantages of small volume, light weight and simple structure.
Metal Seal Butterfly Valve
Metal seal butterfly valve,also known as flap valve,is a simple regulating valve,which can also be used for on-off control of low-pressure pipeline medium. The hard seal butterfly valve is mainly used to cut off the throttle valve on the pipeline.The opening and closing parts of the butterfly valve are disc-shaped butterfly plates, which rotate around their own axes in the valve body to achieve the purpose of opening and closing or adjustment.
Offset Butterfly Valve
Butterfly valves are offered in triple offset, concentric lining design in a wide range of carbon, stainless steel, duplex stainless steel, alloy and other special materials.Vp’s butterfly valves are manufactured according to api 609 design.
Handle Butterfly Valve
Handle butterfly valve has the advantages of simple structure, small volume and light weight, and is only composed of a few parts. Moreover, the valve can be opened and closed quickly only by rotating 90 °, and the operation is simple. At the same time, the valve has good fluid control characteristics.
The Material of Butterfly Valve Body, Bonnet, And Disc
Gray Cast Iron: Gray cast iron is suitable for water, steam, air, gas, oil, and other media with a nominal pressure of pn≤1.0mpa and a temperature of -10℃～200℃. The commonly used grades of gray cast iron are ht200, ht250, ht300, ht350.
Malleable Cast Iron: Suitable for water, steam, air, and oil media with a nominal pressure of pn≤2.5mpa and a temperature of -30～300℃. Commonly used grades are kth300-06, kth330-08, kth350-10.
Nodular Cast Iron: Suitable for water, steam, air, and oil with pn≤4.0mpa and temperature of -30～350℃. Commonly used grades are qt400-15, qt450-10, qt500-7.
Carbon Steel (Wca, Astm A216 Wcb, Wcc): Suitable for nominal pressure pn≤32.0mpa, suitable for medium and high-pressure valves with a working temperature between -29 and +425℃, of which 16mn and 30mn working temperature is -29～595℃, commonly used to replace astm a105. Commonly used grades are wc1, wcb, zg25, and high-quality steel 20, 25, 30, and low alloy structural steel 16mn.
Low-temperature Carbon Steel (Lcb Astm A352 Lcc): Suitable for media with nominal pressure pn≤6.4mpa, temperature≥-196℃ ethylene, propylene, liquid natural gas, liquid nitrogen, etc. The commonly used grades are zg1cr18ni9, 0cr18ni9, 1cr18ni9ti, zg0cr18ni9.
Alloy Steel (Wc6, Astm A217 Wc9), Suitable for high temperature and high-pressure valves of non-corrosive medium with a working temperature between -29～595℃; wc5 and wc9 are suitable for working temperature between -29～650℃ high temperature and high-pressure valves for corrosive media.
Austenitic Stainless Steel (Astm A351), Suitable for valves with corrosive media whose working temperature is between -196～+600℃.
Monel Alloy (Astm A494): Mainly suitable for valves with hydrogen fluorine medium.
Cast Copper Alloy (Astm A494): Mainly suitable for valves for oxygen pipelines with operating temperatures between -29 and 595°c.
FAQ
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