Fleyenda Flow Products - China Actuated Valve Manufacturer

The working principle of the pneumatic lined fluorine ball valve is to rotate the valve core 90° to cut off and open the valve. It is suitable for use in highly corrosive working environments such as strong acids and alkalis. It adopts PTFE sealing material, which can achieve bubble-tight sealing, with small opening and closing torque and long service life.

Single acting and double acting pneumatic valves are available for selection.

Applications: food, environmental protection, light industry, petroleum, papermaking, chemical industry, textiles, power, and other industries in automatic regulation and remote control systems.

Customized stainless steel pneumatic ball valves equipped with NAMUR visual multi-function equipment. Spring return and double-acting pneumatic actuators, 1/2" to 10-inch ball valves are available. Stainless steel ball valve core channel shapes are rectangular, V-shaped and O-shaped. This product has a compact structure, small size, lightweight and easy installation Features.

It can be widely used in petroleum, chemical industry, metallurgy, power station, light industry and other fields to automatically adjust or regulate oil, water, gas, slurry or fibrous fluids.

L port or T port pneumatic 3 Way Thread Ball Valve, BSPP, BSPT, NPT thread standards, can be customized according to your working conditions. 304 or 316 stainless steel body construction, 2.5 to 8 bar input air pressure, 1/4 inch minimum female thread connection. Can withstand pressure range from 1.0 to 6.4MPa.

Double acting and single acting actuators are available. The air source interface fully complies with NAMUR standards, and the solenoid valve can be installed simply and conveniently. End Cap Bolts Internal and external stainless steel fasteners for long-term corrosion resistance.

Welcome to contact us customize pneumatic valves.

The body casting of stainless steel sanitary pneumatic ball valve adopts advanced technology introduced from Taiwan. The valve seat adopts PTFE elastic sealing structure by default, which ensures reliable sealing and easy opening and closing.

The valve stem adopts a bottom-mounted structure with an inverted seal. When the valve cavity is abnormally pressurized, the valve stem will not be impacted. A 90° switch positioning mechanism can be set up and locked as needed to prevent misoperation. Applicable to various pipelines with PN1.0～4.0MPa and working temperature -29～180℃.

Suitable for water, steam, oil, nitric acid, acetic acid, ammonia salt water, neutralized water and other media.

The valve body and valve seat sealing surface are built up using different hardness grades of Stellite cobalt-based hard alloy. The sealing of the stainless steel dark rod high-temperature corrosion resistant slide valve is reliable, with high hardness, wear resistance, high-temperature resistance, corrosion resistance, and good anti-scratch performance, leading to a long service life. It is extensively used in various fields such as chemical plants, power plants, metallurgy, petrochemicals, construction, drainage, municipal, and others.

The body is made of high-grade ductile iron, and its weight is about 20% to 30% lighter than that of traditional gate valves. The water hammer phenomenon is not easy to occur, and the service life is long. The carbon steel gate valve adopts PTFE sealing and is easy and flexible to operate. Easy to install and maintain. Rigid gates and elastic gates are available.

The Z41 flange rigid JIS gate valve uses a wedge-shaped gate as the opening and closing part. It is mainly used to connect and cut off the pipeline medium, and is not suitable for regulating the flow of the medium. Adopting a rising stem structure, the valve stem and gate plate rise and fall simultaneously during the opening process. When the gate valve is fully open, it is equivalent to a pipeline, with small flow resistance, simple structure and reliable use. It can achieve two-way sealing, the force required for switching is smaller than that of the stop valve, and the medium erosion has less impact on the sealing surface. Gate valves have a wide range of applicable pressures, temperatures and diameters, and are especially suitable for medium and large diameter pipelines.
It is widely used in oil, water vapor and other pipelines in petroleum, chemical industry, thermal power plants, etc.

WD71XN, WD371J rubber-lined, nylon wafer butterfly valve products adopt pinless connection technology. The valve plate is entirely covered with rubber or nylon to ensure complete isolation of the medium and metal, good wear resistance, and extended service life. The installation direction is not restricted by the flow direction of the medium. The product is suitable for seawater, sewage, oil, weak acid, alkali, salt and organic compounds, etc.

Stainless steel disc wafer butterfly valve has good corrosion resistance and durability. The butterfly plate has self-locking ability and can be stopped at any position, which can also improve the operating performance of the valve.
It is widely used as a regulating and intercepting device in fluid pipelines such as water supply and drainage, construction, air conditioning, sewage, chemical industry, food, medicine, textile and other industries.

D371FP and D371X worm gear butterfly valves are suitable for regulating flow and intercepting media in water supply and drainage pipelines such as food, medicine, textiles, and papermaking.
1. It is convenient and quick to open and close, labor-saving, dexterous has small flow resistance, can be installed at any position, and is easy to operate and maintain.
2. Unique structure and good low-pressure sealing performance.
3. The seals can be replaced, and the sealing material is resistant to aging, and weak corrosion, and has a long service life.
4. It can transport mud with minimal liquid accumulation at the pipe mouth.
5. Good adjustment, flow interception and non-return performance.

The epoxy resin coating of the wafer butterfly valve has good corrosion resistance, and the bonding strength with concrete is significantly reduced. It is suitable for industrial conditions in humid environments or corrosive media.

Stainless Steel Butterfly Valve
1. The connection between the butterfly plate and the valve stem adopts a pinless structure, which overcomes possible internal leakage points.
2. The outer circle of the butterfly plate adopts a spherical shape, which improves the sealing performance and extends the service life of the valve. It can maintain zero leakage after opening and closing under pressure for more than 50,000 times.
3. The seals are replaceable and the sealing is reliable and achieves two-way sealing.
4. The butterfly plate can be spray-coated according to user requirements, such as nylon or polytetrafluoroethylene.
5. The valve can be designed with flange connection and wafer connection.
6. The driving mode can be manual, electric or pneumatic.

Product name: Stainless steel turbine wafer PTFE hand operated butterfly valve
Connection method: wafer
Product specifications: DN50 65 80 100 125 150 200 250 300
Valve body material: stainless steel
Valve plate material: stainless steel
Sealing form: polytetrafluoroethylene

BLTD371X marine center spiral butterfly valve has novel design, unique structure, heavy and light, easy operation, rapid opening and closing; the sealing part can be adjusted and replaced, and the sealing performance is reliable. 

The products are widely used in water supply, drainage, and gas pipelines such as ships, medicine, chemicals, petroleum, electric power, textiles, papermaking, etc. to regulate flow and intercept media. They have the function of compensating for thermal expansion and contraction of pipelines.

Design standards are divided into national standards, Japanese standards, American standards, German standards, etc. 

D371X extended rod butterfly valve is mainly composed of valve body, valve shaft, valve plate, valve seat, extended rod and driving mechanism (handle, worm gear pneumatic device or electric device). The driving mechanism drives the rotating shaft and valve plate to rotate to achieve opening and closing. and the purpose of controlling traffic. The extension mechanism is mainly suitable for the operation of underground pipeline valves or inaccessible valves using an extension transmission device. The product is widely used in system pipelines such as water treatment, shipbuilding, chemical industry, petrochemical, smelting, medicine, food, etc.

The opening and closing part of the carbon steel butterfly valve is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve opening and closing or adjustment. The use of a scale indicator plate not only makes the butterfly plate self-locking, allowing the butterfly plate to stop at any position, but also improves the operating performance of the valve. It is widely used as a regulating and intercepting device in fluid pipelines such as water supply and drainage, construction, air conditioning, sewage, chemical industry, food, medicine, textile and other industries.
1. Opening and closing is convenient, fast, labor-saving, has small fluid resistance and is easy to operate.
2. Simple structure and good low-pressure sealing performance.

D341F, D341X flange soft-sealing PTFE butterfly valves have a novel design structure, small overall size and light weight; the butterfly plate adopts double eccentricity, opening and closing quickly, and the operation is light and labor-saving; there is no sliding friction between the butterfly plate and the sealing ring, and the sealing surface is wear-resistant , long service life, reliable sealing and easy adjustment.

D341F, D341X flange soft-sealing EPDM butterfly valves have a novel design structure, small overall size and light weight; the butterfly plate adopts double eccentricity, opening and closing quickly, and the operation is light and labor-saving; there is no sliding friction between the butterfly plate and the sealing ring, and the sealing surface is wear-resistant , long service life, reliable sealing and easy adjustment.

LTD71X lug-type 4 inch butterfly valve can be driven by manual, worm gear, pneumatic or electric. The structure is centerline type, and the sealing structure is soft seal. It has a simple structure, small size and light weight, and consists of only a few parts.

It only needs to be rotated 90° to open and close quickly, which is simple to operate. At the same time, the valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body. Therefore, the pressure drop generated by the valve is very small, so it has good flow control characteristics.

The products are widely used for regulating and intercepting pipelines in water treatment, shipbuilding, chemical industry, petrochemical, smelting, medicine and food industries.