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HAWIDO - REGULATING VALVES Instruction for Pressure Sustaining for hydraulic third-party control Type 1402 ND40 to ND200 Keep this instruction manual at the location of the valve...
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Example of a nameplate Once the commissioning work has been completed, enter the following data and always specify this additional information concerning the valve type, pressure and flow ratios, whenever you consult or have reason to question the manufacture or supplier: ………………...
PRESSURE SUSTAINING STAINLESS STEEL DRAWING 3.4 C ONTROL VALVE PRESSURE SUSTAINING STAINLESS STEEL PARTS LIST 3.5 C ONTROL LINE AND ACCESSORIES 3.6 P OSITION INDICATOR DRAWING 3.7 P OSITION INDICATOR ARTS LIST ANNEX 1. T ORQUE TABLE HAWLE IN EUROPE...
2 to 40º C General safety guidelines The Hawle HAWIDO regulating valve is designed for use in drinking water supply systems. Please consult the manufacturer before using it with other media. Material damage or injury to persons can occur if the HAWIDO is not installed, commissioned, operated or maintained according to these instructions or to codes of practice.
Recommended installation Before the installation, all pipe work must be blown or flushed through to prevent any foreign material such as pieces of wood, stone etc. from entering the valve. Regulating valves are normally fitted with the valve cover upwards. It is recommended that shut-off valves be fitted on both sides plus a dirt trap on the inlet side.
B. Commissioning Functional diagram (1402) Components: Main valve 1200 Ball valve (A, B, C) Filter Orifice One-way flow restrictor Control valve Pressure gauge Position indicator Electrical position indicator (optional) Valve opening limiter (optional) ND: External pressure (lower than p1 or HD) HD: Higher pressure Preparation Before commissioning the valve, check that the gate valves on the inlet and outlet sides of the valve are...
Venting Proceed as follows: Slowly open the inlet gate valve until water flows into the valve. The valve fills with water and the air escapes via the vent holes. When the valve venting procedure has caused all the air to be expelled from the control lines, retighten the headless screws.
Setting the reaction speed If the HAWIDO does not operate quietly, or pressure surges occur in the supply network, this can be corrected by adjustment one-way flow restrictor (5). Procedure: Loosen the locknut. Screw in the setting screw clockwise with a screwdriver until the valve operates quietly, and then retighten the lock nut.
D. Putting out of service and Maintenance Putting out of service The operating valve must first be hydraulically shut off as follows: Slowly close the gate valves after and before the valve Slowly close the ball valves (2A, 2B, 2C) The valve is taken out of operation and the maintenance can be accomplished.
Checking the valve • Remove the position indicator from valve cover. • Check that the valve spindle moves easily by raising and lowering it with the threaded rod. • Install the optical position indicator. Putting the valve back into service •...
-10- Checking the operation of the one-way flow restrictor • Undo the locknut • Screw in the set screw and then unscrew it as far as it goes • Screw in again a few turns. This process must be easy and with little resistance Putting the valve back into service •...
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-19- Coil AC voltage 0620 Indicate the voltage 0620 xxx xxx Coil Coil DC voltage Indicate the voltage 0621 xxx xxx Appliance socket 0630 for electric coil 0630 000 000 Appliance socket for electric coil Plug module for solenoid valves Type 0653 024 008 0652, 0653 LBV 24 DC = 8-14S incl.
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-20- Tools and accessories 1199 000 000 1199 1199 000 010 Spindel stroke tester Key for assembling the seal holder 1199 000 020 1199 of the pilot valve Tool for seal holder Ratchet with attachment for the one 1199 000 030 1199 way flow restrictor Ratchet with...
-23- E. Annex Torque table When assembling the main valve and the pilot valve, all bolts are checked with a torque wrench according to the following list. Grease the bolts before mounting ! Strenght class Diameter Hexagon bolt Tightening torque Reference Max.
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