Anti-pollution non-return valve HONEYWELL - 1/2" (15 mm)
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Description
Connection size: 1/2" (internal thread)
Agent: water
Working pressure: max. 25 bar
Weight: 0.125 kg
Working temperature: up to 70oC
Features:
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tightness at 3 cm reverse water column
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DVGW approvals for valve insert
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easy installation
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versatile application
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any mounting position
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no hydraulic shocks
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reliable, tested
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causes low pressure loss
Design:
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housing
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valve insert with DVGW certificate
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caps
Materials:
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brass housing
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valve insert made of high-grade plastic
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cap made of high-grade plastic
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NBR O-ring seal
Application:
The anti-pollution check valve EA-RV284 is used as an EA class protection according to PN-EN 1717 against backflow. It is installed in drinking water installations in places exposed to contact with liquid classified in category 2. It can be used as main protection on the water supply network connection, installed directly behind the water meter.
Operating principle:
The anti-pollution check valve has a movable sealing mushroom, which is pushed away from the seat closer or farther depending on the flow rate. When the flow drops to zero, the spring moves the mushroom to the seat causing sealing and preventing backflow. The valve tightness, in accordance with the guidelines in the standards, is ensured at 3 cm reverse water column.
|
Connection size R |
1/2" |
|
Weight (approximately) [kg] |
0.125 |
|
Dimensions [mm] |
|
|
Connector |
1/4" |
|
kvs value |
4.1 |
|
Nominal flow at |
1.6 |
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