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Mechanical disconnector with union connectors direct actuated, GA type according to EN1717, R295

Mechanical disconnector with union connectors direct actuated, GA type according to EN1717, R295

Product Description

Mechanical disconnectors of this type are suitable for the protection of drinking water systems as required by EN 1717 "The technical regulation of drinking water systems". Their purpose is to protect systems against back pressure, back flow and back syphonage of non-potable water into the public water supply network. Mechanical disconnectors can be used to provide protection up to and including liquid category 3 (slightly toxic substances). Mechanical disconnectors therefore offer better protection than check valves.

Technical Properties

Media

Cold drinking water

Liquid category (EN1717) class 3
Port connection internal threads
Mounting position horizontal
Nominal pressure PN10
Max. media temperature 40 oC
Body material red bronze RG5
Spring bonnet material synthetic material
Additional Descriptions
  • Low pressure drop and high flow rate
  • Optimal protection of the drinking water supply system
  • Enhanced protection against back pressure, back flow and back syphonage into the water supply network
  • Shut-off position visually indicated on the spring bonnet
  • Compact construction
  • Standardised discharge connection
  • All materials are KTW approved 
Maximum inlet pressure 10 bar

Related Material

Products

Product Type DN size
Port diameter
Minimum inlet pressure
Set pressure
Flow capacity Kvs
With internal threaded union connectors, 0,5 bar opening pressure

R295-1/2A
15 mm Rp 1/2 inch 1.5 bar 0.5 bar 4.5

R295-3/4A
20 mm Rp 3/4 inch 1.5 bar 0.5 bar 6

R295-1A
25 mm Rp 1 inch 1.5 bar 0.5 bar 8

R295-11/4A
32 mm Rp 1 1/4 inch 1.5 bar 0.5 bar 13

R295-11/2A
40 mm Rp 1 1/2 inch 1.5 bar 0.5 bar 18

R295-2A
50 mm Rp 2 inch 1.5 bar 0.5 bar 27
With internal threaded union connectors, 1,0 bar opening pressure

R295-1/2B
15 mm Rp 1/2 inch 2 bar 1 bar 4.5

R295-3/4B
20 mm Rp 3/4 inch 2 bar 1 bar 6

R295-1B
25 mm Rp 1 inch 2 bar 1 bar 8

R295-11/4B
32 mm Rp 1 1/4 inch 2 bar 1 bar 13

R295-11/2B
40 mm Rp 1 1/2 inch 2 bar 1 bar 18

R295-2B
50 mm Rp 2 inch 2 bar 1 bar 27
With internal threaded union connectors, 1,5 bar opening pressure

R295-1/2C
15 mm Rp 1/2 inch 2.5 bar 1.5 bar 4.5

R295-3/4C
20 mm Rp 3/4 inch 2.5 bar 1.5 bar 6

R295-1C
25 mm Rp 1 inch 2.5 bar 1.5 bar 8

R295-11/4C
32 mm Rp 1 1/4 inch 2.5 bar 1.5 bar 13

R295-11/2C
40 mm Rp 1 1/2 inch 2.5 bar 1.5 bar 18

R295-2C
50 mm Rp 2 inch 2.5 bar 1.5 bar 27
With internal threaded union connectors, 2,0 bar opening pressure

R295-1/2D
15 mm Rp 1/2 inch 3 bar 2 bar 4.5

R295-3/4D
20 mm Rp 3/4 inch 3 bar 2 bar 6

R295-1D
25 mm Rp 1 inch 3 bar 2 bar 8

R295-11/4D
32 mm Rp 1 1/4 inch 3 bar 2 bar 13

R295-11/2D
40 mm Rp 1 1/2 inch 3 bar 2 bar 18

R295-2D
50 mm Rp 2 inch 3 bar 2 bar 27

Accessories and replacement parts

Spare Parts

Image Description Product Type Downloads
Hexagon-plug with copper sealing-ring R1/4" (5 pcs.) S06M-1/4  
Union seal washer, 1/2" 5351200  
Union seal washer, 1 1/2" 5163000  
Union seal washer, 2" 5163100  
Valve insert complete, opening pressure 0.5 bar, for connection sizes 1/2" - 1" R295A-3/4A  
Valve insert complete, opening pressure 0.5 bar, for connection sizes 1 1/4" - 2" R295A-11/4A  
Valve insert complete, opening pressure 1.0 bar, for connection sizes 1/2" - 1" R295A-3/4B  
Valve insert complete, opening pressure 1.0 bar, for connection sizes 1 1/4" - 2" R295A-11/4B  
Valve insert complete, opening pressure 1.5 bar, for connection sizes 1/2" - 1" R295A-3/4C  
Valve insert complete, opening pressure 1.5 bar, for connection sizes 1 1/4" - 2" R295A-11/4C  
Valve insert complete, opening pressure 2.0 bar, for connection sizes 1/2" - 1" R295A-3/4D  
Valve insert complete, opening pressure 2.0 bar, for connection sizes 1 1/4" - 2" R295A-11/4D  
Seal ring set for connection sizes 1/2" - 1" 0901055  
Seal ring set for connection sizes 1 1/4" - 2" 0901056  
Union seal washer for connection size 1" 5166300  
Union seal washer for connection size 1 1/4" 5162900  
Check valve for connection size 1/2" RV282E-3/4A  
Check valve for connection size 3/4" RV282E-1A  
Check valve for connection size 2" RV282E-2  
Drain connection complete for connection sizes 1/2" - 1" 0901340  
Drain connection complete for connection sizes 1 1/4" - 2" 0901341  
Check valve for connection size 1 1/4" RV282E-11/4  
Check valve for connection size 1 1/2" RV282E-11/2  

Accessories

Image Description Product Type Downloads
Soldered union connectors (pack of 2) for diameter 15 mm ZT295A-1/2  
Soldered union connectors (pack of 2) for diameter 22 mm ZT295A-3/4  
Soldered union connectors (pack of 2) for diameter 25 mm ZT295A-1  
Soldered union connectors (pack of 2) for diameter 35 mm ZT295A-11/4  
Soldered union connectors (pack of 2) for diameter 42 mm ZT295A-11/2  
Soldered union connectors (pack of 2) for diameter 54 mm ZT295A-2  
Pressure gauge with housing diameter 63 mm, rear connection thread G 1/4, range 0 - 4 bar M07M-A4  
Pressure gauge with housing diameter 63 mm, rear connection thread G 1/4, range 0 - 10 bar M07M-A10  
Pressure gauge with housing diameter 63 mm, rear connection thread G 1/4, range 0 - 16 bar M07M-A16  
Pressure gauge with housing diameter 63 mm, rear connection thread G 1/4, range 0 - 25 bar M07M-A25