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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...
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Stainless steel solid-liquid separation candle filter
Series: Candle Filter Filter core length: 800~2500 Filter cylinder dimensions: 550~2200 Filter cake specification:15~60mm Filter core number: 7~205 Filter area: 0.9~144.8㎡ Application: Biopharmaceutical, Chemical Industry, Food and beverages, Metal processing
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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
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...
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.
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...
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 ...
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...
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
Resilient Seated Gate Valve
- Valve Type: Resilient-Seated Gate Valve
- Size: Non-Rising Stem: DN40-DN1000; Rising Stem: DN40-DN600
- Pressure Rating: PN10/PN16/PN25
- End Connection: Flanged
- Operating Temperature: 0℃ to +80℃
- Material: Ductile Iron
- Medium: Raw water, Drinking water, Sewage
- Design Standard: BS5163/DIN3352/AWWA C515
- Face to Face: BS5163, DIN3202 F4, DIN3202 F5,AWWAC515
- Flange Standard: EN1092-2, ASME B16.10, AS4087
- Product Details
RKSfluid Resilient-Seated Gate Valves are designed for on-off isolation in water supply and water treatment systems. Featuring a ductile iron body and an EPDM- or NBR-encapsulated ductile iron wedge, the valve provides reliable shutoff for raw water, drinking water and sewage applications, subject to material compatibility.
The full-bore design supports low flow resistance when fully open. Epoxy powder coating protects the internal and external surfaces against corrosion, while the multi-O-ring stem sealing arrangement helps maintain sealing performance and supports online replacement of the upper stem O-rings under specified conditions.
Available in rising-stem and non-rising-stem configurations, these flanged valves can be selected according to pipeline dimensions, pressure rating, installation requirements and applicable project standards.
Key Features
- Full-Bore Design: Provides low flow resistance when fully open.
- Resilient Wedge Sealing: Ductile iron wedge encapsulated with EPDM or NBR for water pipeline isolation.
- Corrosion Protection: Internal and external epoxy powder coating.
- Multi-O-Ring Stem Sealing: Six O-rings in the bonnet arrangement; the upper three can be replaced under pressure when the valve is fully open, following the approved maintenance procedure.
- Protected Bonnet Connection: Recessed bonnet gasket design helps resist displacement during pressure surges.
- Enhanced Wedge Design: Designed to reduce damage to the rubber sealing surface during operation and help extend service life.
- Flexible Configuration: Rising-stem and non-rising-stem options available.
Need a Resilient-Seated Gate Valve for Your Project?
Contact RKSfluid with your required size, pressure rating, stem configuration, medium, and applicable standards. Our team can help confirm the suitable valve configuration and dimensional requirements for your water supply or water treatment project.
Send us your specifications to request a quotation.
FAQs
A rising stem design allows the stem position to indicate valve opening and closing, while a non-rising stem design keeps the stem within the valve body. The choice depends on available installation space, operating requirements and project specifications.
RKSfluid Resilient Seated Gate Valves are available from DN40 to DN1000 for non-rising stem designs and DN40 to DN600 for rising stem designs. Pressure ratings include PN10 and PN16, with additional PN25 options depending on size and configuration.
These valves are designed for raw water, drinking water and sewage applications. The resilient seat provides reliable sealing for water pipeline systems when the valve is selected according to the required pressure, temperature and medium.
Depending on the configuration, the valve can be designed according to BS 5163, DIN 3352 or AWWA C515. Face-to-face dimensions may follow BS 5163, DIN 3202 F4/F5 or AWWA C515.
RKSfluid Resilient Seated Gate Valves can be configured according to project requirements, including EN 1092-2, ASME B16.10 and AS 4087 flange requirements. The flange standard should be confirmed before ordering.
The valve body is made of ductile iron, while the disc uses ductile iron with NBR or EPDM sealing. The appropriate sealing material should be selected according to the medium and operating conditions.
Yes. They are widely used in water supply and water treatment systems, particularly where reliable shut-off and low-maintenance operation are required. They are suitable for raw water, potable water and sewage applications.
Selection should consider DN size, pressure rating, stem type, flange standard, medium, temperature and installation space. For EPC projects, the applicable design standard and pipeline specifications should also be confirmed.
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