RKS fluid was founded in 1997. We are a production workshop for both foundry and machining, research & development center, and quality inspection cent...
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
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...
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 with bolted cover connection; made of ductile iron materials and with epoxy coating, designed as both clockwise and anti-c...
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
RKSfluid Three-Function Combination Air Valves are designed for air management in pressurized water pipeline systems. The valve combines automatic air release during normal operation with large-volume air exhaust during pipeline filling and air admission during draining or negative-pressure conditions.
| DN | A | C | H |
| 25 | NPT1" | 20 | 243 |
| 32 | NPT1¼" | 20 | 243 |
| 40 | NPT1½" | 20 | 243 |
| 50 | NPT2" | 20 | 243 |
Key Features
Three-Function Air Management
Combines automatic air release, large-volume air exhaust and air admission functions.
Ductile Iron Construction
Body and cover manufactured from EN-GJS-500-7 ductile iron.
Stainless Steel Internals
SS304 internal components provide corrosion-resistant construction for water service.
WRAS-Grade Materials
WRAS-grade rubber and epoxy coating materials are used for the specified configuration.
Heavy-Duty Protective Coating
RAL 5005 epoxy powder coating with a minimum coating thickness of 250 μm.
Need a Different Air Valve Configuration?
RKSfluid also supplies 4F & 3F Air Valve series for water supply, transmission, firefighting and irrigation systems.
Explore the 4F & 3F Air Valve Series →
For other sizes, pressure ratings, connections or project-specific requirements, contact the RKSfluid team for technical support and a quotation.
High-quality valves and filtration products with strict quality control is our commitment.
+86 138 8989 6699 
