DHA-1 type
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The DHA-1 type positive pressure relaxer (PAPA) is a device for measures against positive pressure generated in the drain pipe.
In the drain pipe, positive pressure is generated in addition to negative pressure due to the flow of drainage.
The generation of positive pressure may cause the trap to be ruptured or the equipment to be ejected.
By installing a positive pressure relaxer (PAPA), various positive pressure obstacles that occur in the drainage system can be alleviated.
In addition, since the vent valve (AV-2C type) can be combined with the main body, the problems caused by positive pressure and negative pressure can be solved at the same time.

Major features

  • It relieves the positive pressure generated in the drainage pipe of the building.
  • Since it is possible to connect and install up to 4 units, it is possible to deal with a wide positive pressure problem in the building.
  • By combining with a vent valve, the problem caused by positive and negative pressures that occur in the drainage pipe in the building can be solved.
  • Since it can be installed horizontally, it can be installed under the floor.
  • No maintenance required.

specification

Product code DHA1-P
Valve type Positive pressure relaxer for drainage
End connection Plug-in adhesive
Applicable pipe Hard vinyl chloride pipe (VP pipe / VU pipe)
Applicable pipe diameter 75
Mounting posture Upright or horizontalWhen combined with the AV-2C type vent valve, install it upright within 5 ° from the vertical direction.

Download materials

Download materials

Common to all product symbols

DHA-1 Catalog

DHA-1 price list

DHA-1 outline drawing

DHA1-P

DHA1-P reference diagram

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Notation on catalogs and websites

RD44N-F □

Contains characters that indicate pressure classification and options.

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