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RKS fluid was founded in 1997. We are a production workshop for both foundry and machining, research & development center, and quality inspection cent...
Swing check valve is mounted with a disc that swings on a hinge or shaft. The disc swings off the seat to allow forward flow and when the flow is stop...
Features： Fully bore globe pattern design, lowest head loss while fully open Keep stable working condition even the flow rate close to zero High sens...
Ⅰ Business area: fluid control products, technology and environmental protection products. Ⅱ Advanced CNC machining centers, professional process ce...
RKS fluid was founded in 1997. We are a production workshop for both foundry and machining, research & development center, and quality inspection cent...
Series: SASQUATCH series soft seal gate valve Port size: DN50 - DN900 (NPS2-NPS36) Pressure rating: PN10, PN16 Temperature: 0℃~80℃ Connection: Flange Certificate: CE ,WRAS,API,OHSAS18001:2007,ISO9001:2015
Series: HYDRA Series Resilient Seat Butterfly Valve Temperature: -29℃ ~ +120℃ Pressure: PN6, PN10, PN16(Class 150) Port Size: DN32-DN2400(NPS1 1/4-NPS96) Power: Manual, Electric, Pneumatic, Hydraulic
Butterfly valves have been around for a long time, and are used for a variety of applications. They made their first appearance during the 1930s, and have been utilized by several industries ever since. Often made out of cast iron, butterfly valve's name is based from the functionality of its disc.
The wafer butterfly valve is one of the most common types of valves in industrial pipelines. The structure of wafer butterfly valve itself is relatively small. It is only necessary to put the butterfly valve in the middle of the flange at both ends of the pipe, and use the stud bolt to pass through the pipe flange and the pair.
Valves are the most common equipment in chemical companies. It seems easy to install valves, but if they are not implemented in accordance with the re...
The manual valve is a valve operated by the handle and the hand wheel, and is a commonly used valve on the equipment pipeline.
DIN standard now uses EN standard structure length
EN 558-1 PN flange connection valve construction length (instead of DIN 3202), EN 558-2 CLASS flange connection valve construction length (instead of BS2080), EN 12982 butt weld end valve construction length (instead of DIN 3202), DIN standard The length of the structure including the length of the API valve is basically the same as the length of the GB...
Resilient-seated gate valve with bolted cover connection; made of ductile iron materials and with epoxy coating, designed as both clockwise and anti-c...
The butterfly valve disc is a key component of the butterfly valve, which acts on closing and opening and closing. Butterfly valve seat and butterfly ...
What is Kieselguhr Filter? What's the working principle of Kieselguhr Filter? The kieselguhr filter (Candle filter / Cake Filter) which we for customized for fluorine chemical plant six more lithium fluoride phosphate phosphorus process have been installed and working for two years
MINOTAUR series replaceable seat high performance butterfly valve
Ball valve selection instructions
Ball valves are suitable for low temperature, high pressure, high viscosity media. Most ball valves can be used in media with suspended solid particles and can also be used in powdered and granular media depending on the material requirements of the seal.
The full-channel ball valve is not suitable for flow regulation, but it is suitable for occasions requiring quick opening and closing, which is convenient for emergency cutoff of accidents; usually, the sealing performance is strict, wear, shrinkage passage, quick opening and closing action, high pressure cutoff (large differential pressure).
Ball valves are recommended for pipes with low noise, gasification, low operating torque and low fluid resistance.
The ball valve is suitable for light structure, low pressure cut-off, corrosive medium; ball valve is also the most ideal valve for low temperature and deep cooling medium, and the low temperature medium pipe system and device should use the low temperature ball valve with bonnet.
When the floating ball valve is selected, the valve seat material should bear the load of the sphere and the working medium. The large-diameter ball valve needs a large force during operation, DN≥200mm ball valve should be in the form of worm gear transmission; the fixed ball valve is suitable for occasions with larger caliber and higher pressure.
In addition, the ball valve used for process highly toxic materials and combustible medium pipeline should have fireproof and anti-static structure.
Gate valve selection instructions
In general, the gate valve should be preferred. In addition to suitable for steam, oil and other media, the gate valve is also suitable for media containing granular solids and high viscosity, and is suitable for valves for venting and low vacuum systems.
For media with solid particles, the gate valve body should have one or two purge holes. For low temperature media, low temperature special gate valves should be used.
Check valve selection instructions
Check valves are generally suitable for cleaning media and should not be used for media containing solid particles and high viscosity. When≤40mm, it is advisable to use a lifting check valve (only allowed to be installed on horizontal pipes). When DN=50~400mm, it is advisable to use a swing-type lifting check valve (can be installed on both horizontal and vertical pipes, such as Installed on a vertical pipe, the flow of the medium is from bottom to top).
When DN≥450mm, buffer type check valve should be used; when DN=100~400mm, the clamp type check valve can also be used. The swing type check valve can be made into a high working pressure, and the PN can reach 42MPa. Depending on the material of the housing and seal, it can be applied to any working medium and any operating temperature range.
The medium is water, steam, gas, corrosive medium, oil, medicine, and the like. The media operating temperature range is between -196 and 800°C.
Globe valve selection instructions
The shut-off valve is suitable for pipelines with less demanding fluid resistance, that is, pipelines or devices with little consideration for pressure loss, and high-temperature and high-pressure medium, suitable for medium pipes such as steam with DN<200mm.
Small valves can be used with shut-off valves, such as needle valves, instrument valves, sampling valves, pressure gauge valves, etc.
The shut-off valve has flow regulation or pressure regulation, but the adjustment accuracy is not high, and the pipeline diameter is relatively small, and a shut-off valve or a throttle valve should be used.
For highly toxic media, a bellows-sealed shut-off valve should be used; however, the shut-off valve should not be used for mediums with high viscosity and media containing particles, and should not be used as valves for venting valves and low vacuum systems.
