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Athena Double Eccentric Butterfly Valve Manufacturer | EN593 Water Valve Supplier
Double Eccentric Flange Butterfly Valve

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

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...
Hydraulic Control Valve

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...
Ball Check Valve

Ⅰ Business area: fluid control products, technology and environmental protection products. Ⅱ Advanced CNC machining centers, professional process ce...
Metal Seated Gate Valve

RKS fluid was founded in 1997. We are a production workshop for both foundry and machining, research & development center, and quality inspection cent...
Resilient Seated Gate Valve

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
Resilient Seat Butterfly Valve

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

News

The Difference Between A Lug and Wafer Butterfly Valve

2019-02-12 16:59:28

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.

Wafer type butterfly valve installation instructions and steps

2019-01-03 16:27:13

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.

How Does a Pressure Reducing Valve (PRV) Work?

2024-10-15 16:58:28

Manual valve operation method

2019-04-01 11:50:16

The manual valve is a valve operated by the handle and the hand wheel, and is a commonly used valve on the equipment pipeline.

Twenty-five Taboos for Valve Installation

2019-09-06 10:23:57

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...

Valve common standards and differences

2019-05-07 17:37:21

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

2022-10-17 16:09:38

Resilient-seated gate valve with bolted cover connection; made of ductile iron materials and with epoxy coating, designed as both clockwise and anti-c...

Butterfly Valve Seat & Seal Ring Replacement Method

2021-02-01 18:14:53

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's the working principle of Kieselguhr Filter?

2019-07-01 13:05:32

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

New designed PTFE RPTFE sealing replaceable seat high performance butterfly valve

2022-04-24 10:39:22

MINOTAUR series replaceable seat high performance butterfly valve

Contact us

RKSfluid Flow Control Company

Web: www.rksfluid.com
Tel: +86 24 2318 0188
Fax: +86 24 2318 0788
Mail: info@rksfluid.com

Triple Eccentric Butterfly Valve performance advantage

2023-01-30 16:49:14

The appearance of triple eccentric butterfly valve broadens the application field of butterfly valve, from can only be used in normal temperature and pressure water system, to can be used in high temperature and high pressure water, gas, oil and other media pipelines.
Triple eccentric butterfly valve performance advantages:

1. Set adjustment and cutting in one, strong control.
The design of the new triple eccentric butterfly valve adopts double safety structure, In order to prevent the disc deformation, stem dislocation and sealing surface occlusion caused by the influence of fluid pressure and temperature, two independent thrust rings are installed on the upper and lower sides of the disc respectively, so as to ensure the normal operation of the valve under any working conditions.
In order to prevent the valve stem from breakage and flying out of the valve, the valve stem flying out of the two parts of the design of their own independent mechanism.

2.No dead zone design, small opening torque.
Triple Eccentric Butterfly Valve plate shape for the oval body, its surface surfacing hard alloy, excellent wear resistance, floating U-shaped stainless steel valve seat with automatic center adjustment function.
When the valve is opened, the elliptical cone sealing surface valve plate is first removed from the U-shaped elastic seat, and then rotated;
When closed, the valve plate rotates. Under the action of eccentric shaft, the valve plate automatically adjusts the center to the elastic valve seat, and puts pressure on the valve seat to deform until the valve seat is closely matched with the elliptical conical sealing surface of the valve plate.
When the valve is switched on and off, the disc does not scratch the valve seat, and the torque of the valve stem is directly transmitted to the sealing surface through the disc, and the opening torque is small, thus eliminating the common jumping phenomenon when opening the valve, that is, eliminating the dead zone.
This no-dead zone design makes the three eccentric butterfly valve can almost enter the adjustable area from 0 opening to 90 opening, and its control ratio can be as high as 1001 or more, 2 times of the general butterfly valve.

3.Zero leakage, high temperature and high pressure resistance.
The biggest characteristic of the three eccentricity is that the sealing structure is fundamentally changed. It is no longer position sealing, but torsion sealing. That is, it does not rely on the elastic deformation of the seat, but completely depends on the contact surface pressure of the seat to achieve the sealing effect.

This sealing structure makes the three eccentric butterfly valve can be hard sealed VI level, to achieve true zero leakage.

At the same time, because of the selection of metal seat and the structural characteristics of face seal, the problem of high temperature and high pressure resistance is solved.

In addition, Triple eccentric butterfly valve due to the use of body seat structure, so that the valve structure is more compact, and reduce the valve seat direct contact with the medium opportunity, reduce the degree of valve seat erosion, but also effectively prevent the influence of small solid in the medium and thermal expansion may cause sealing surface bite, thus extending the service life of the valve seat.

New triple eccentric butterfly valve not only the body seat can be replaced, and the butterfly plate sealing surface and the butterfly plate is independent, the butterfly plate sealing surface can also be replaced, so that the maintenance cost is greatly reduced.