The top 5 main advantages of bellow seal slide control valve

1: small size, light weight
2: Accurate and stable control
3: Smooth operation, unstuck
4: Tight sealing performance to ensure long-term zero leakage
5: The bellows seal can be used for High corrosion, toxicity, harmfulness application mediums

The throttling part of the slide control valve is mainly composed of two skateboards, one is a fixed skateboard and one is a moving skateboard. There are a number of throttling slots on the skateboard. The moving skateboard is connected with the valve stem to move up and down, and the flow area of the slot is changed to achieve accurate flow regulation.
Innovative structural design makes the skateboard body volume is small, light weight, low energy consumption, focusing on solving the traditional control valve volume, bulky and energy consumption and other problems, straight stroke action mode, good adjustment performance, is a high-performance, high-tech, instrumentation, energy-saving and low-carbon control valve.

Compared with single-seat valve, sleeve valve, ball valve, butterfly valve in the application of large diameter conditions, slide control valve has the following outstanding advantages.

Advantage 1: small size, light weight, reduce the installation and maintenance of large diameter valves
The slide control valve is greatly reduced in size and weight than the traditional control valve, for example, the height of the pneumatic film skateboard valve of DN600 and PN40 is 980mm and the weight is 120kg, while the height of the sleeve valve of the same caliber is 2500mm and the weight is higher than 2800kg.
All slide control valve  do not need to use large lifting equipment when installed in the field, and do not need to remove the actuator during inspection and maintenance, only need to loosen the 4 screws on the valve body gland, you can launch the entire slide assembly for inspection and maintenance.

Advantage 2: Accurate and stable control
Ball valves and butterfly valves are often used in large diameter adjustment conditions, and the opening is often small, the control is unstable and inaccurate, and can only be used for rough adjustment.
The slide control valve is a straight stroke valve, the horizontal flow channel design, the fluid flow is stable, the design has linear and equal percentage of two flow characteristics, the control is accurate and stable.

Advantage 3: smooth operation, unstuck
Ball valve, butterfly valve in the operation process, often appear torque increase, open card lag phenomenon, sleeve valve if applied to the occasion of large temperature change, also prone to sleeve and spore stuck phenomenon, stuck valve can not operate normally, or cause obvious leakage, the adjustment system can not operate normally.
The slide control valve adopts the structure of two sliding plates, free retractable design, can automatically adjust the expansion or contraction size of high or low temperature application, there will be no stuck situation, and the operation is smooth.

Advantage 4: good sealing performance to ensure long-term zero leakage
The traditional large-caliber valve due to the driving force is large, the parts are subjected to large stress, easy to wear phenomenon, after a period of operation is prone to leakage problems, including the leakage of the filler and the leakage of the valve core seat, can not guarantee long-term sealing performance, due to the increase of leakage, the adjustment performance will become worse and worse, or even can not be adjusted.
Skateboard valve skateboard assembly adopts metal-to-metal hard seal structure, sealing surface is hardened, the conventional leakage of the skateboard valve is less than 1/10 of CLASS IV, optional CLASS V for cutting occasions, sealing performance is maintained in factory status for a long time.

Advantage 5: The bellows seal can be used for High corrosion, toxicity, harmfulness application mediums

Under the condition of large diameter dangerous medium, if the ball valve and butterfly valve are selected, the bellows seal cannot be configured, resulting in security risks. If you choose a single-seat valve, sleeve valve and other straight stroke regulating valve, you can configure the bellows seal, but because the stroke is very long, the bellows are in the process of operation, the amount of tensile compression deformation is large, the bellows are easy to break, and the long-term service life cannot be guaranteed.
When the large-diameter slide valve is configured with the bellows seal, due to the short stroke, the amount of tensile compression deformation of the bellows is very small, and the full stroke action can reach 100,000 times, which can achieve long-term safety control.

Based on the above advantages, the large-diameter slide control valve is more and more recognized by users, and the use of user feedback is focused on small size, accurate and stable control, no leakage, maintenance-free, etc., which reduces the installation and maintenance work of field personnel and various expenditures.

Technical parameters of large diameter slide control valve

Diameter: DN300~DN800
Pressure: PN16~40, Class150~300
Body material: stainless steel (CF8, CF8M, CF3, CF3M, duplex stainless steel),
Hastelloy, titanium alloy, Monel alloy, nickel alloy, etc
Medium temperature: -253℃~+816℃
Actuator: pneumatic actuator, electric actuator

The technical parameters of the micro-flow slide control valve

Nominal diameter: DN6~DN15
Nominal pressure: PN16~400, CLASS150~2500
Medium temperature: -253℃~+816℃
Body material: stainless steel, all kinds of alloy
Leakage grade: ANSI CLASS IV&V
Flow coefficient Cv: 1×10-6~0.01
Connection mode: thread, sleeve, welding, flange
Driving mode: pneumatic, electric

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