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Controllable anti-pollution check valve EA type with union connectors, RV281

Controllable anti-pollution check valve EA type with union connectors, RV281

Check valves of this type are for use as an independent means of preventing reverse water flow and for installing directly after a water meter on central water supply systems...

Product Description

Check valves of this type are for use as an independent means of preventing reverse water flow and for installing directly after a water meter on central water supply systems. They can also be used for industrial, commercial and similar systems where back pressure, back flow and back syphonage must be prevented. The classicfications of appliances to meet these requirements are specified in EN 1717. 

Technical Properties

Approvals
  • DVGW
  • SVGW
Media
  • Drinking water
Liquid category (EN1717) class 2
Port connection internal threads
Max. media temperature 65/ 90 oC
Body material brass
Additional Descriptions
  • Universal application
  • Suitable for installation in any position
  • Creates no shock pressure loadings
  • Union connectors simplify service
  • Low pressure loss
  • Fully approved for noise level protection to class 1.
  • All materials are UBA conform
Set pressure 0.05 bar
Maximum operating pressure 16 bar

Certifications and Awards

Related Material

Products

Product Type DN size
Port connection
Port diameter
Flow capacity Kvs
Internal threaded connection set

RV281-1/2A
15 mm internal threads 1/2 inch 4.5

RV281-3/4A
20 mm internal threads 3/4 inch 9.1

RV281-1A
25 mm internal threads 1 inch 17

RV281-11/4A
32 mm internal threads 1 1/4 inch 28

RV281-11/2A
40 mm internal threads 1 1/2 inch 38

RV281-2A
50 mm internal threads 2 inch 60
With soldered union connectors

RV281-1/2B
15 mm soldering 1/2 inch 4.5

RV281-3/4B
20 mm soldering 3/4 inch 9.1

RV281-1B
25 mm soldering 1 inch 17

RV281-11/4B
32 mm soldering 1 1/4 inch 28

RV281-11/2B
40 mm soldering 1 1/2 inch 38

RV281-2B
50 mm soldering 2 inch 60
With external threads

RV281-1/2E
15 mm external threads 3/4 inch 4.5

RV281-3/4E
20 mm external threads 1 inch 9.1

RV281-1E
25 mm external threads 1 1/4 inch 17

RV281-11/4E
32 mm external threads 1 1/2 inch 28

RV281-11/2E
40 mm external threads 2 inch 38

RV281-2E
50 mm external threads 2 1/2 inch 60

Accessories and replacement parts

Spare parts

Image Description Product Type Downloads
Disc guide, 1/2" 5534900  
Disc guide, 3/4" 5535100  
Disc guide, 1" 5531500  
Disc guide, 1 1/4" 5535300  
Disc guide, 1 1/2" 5535500  
Disc guide, 2" 5535700  
Spring, 1/2" 2061400  
Spring, 3/4" 2061500  
Spring, 1" 2061600  
Spring, 1 1/4" 2061700  
Spring, 1 1/2" 2062000  
Spring, 2" 2062400  
Valve disc complete, 1/2" 0900356  
Valve disc complete, 3/4" 0900357  
Valve disc complete, 1" 0900358  
Valve disc complete, 1 1/4" 0900359  
Valve disc complete, 1 1/2" 0900360  
Valve disc complete, 2" 0900361  
Hexagon-plug with copper sealing-ring R1/4" (5 pcs.) S06M-1/4  
Union seal washer, 1/2" 5351200  
Union seal washer (10 pcs.) for size 1" 0901445  
Union seal washer (10 pcs.) for size 1 1/4" 0901446  
Union seal washer(10 pieces), 1 1/2" 0901447  
Union seal washer, 1 1/2" 5163000  
Union seal washer, 2" 5163100