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DOROT.QR. 68-510.IOM.EN.0324
Installation, Operation & Maintenance
Control Function Quick Pressure Relief (QR)
Pressure Relief Using 68-510 Pilot Valve
Applicable Series:
1.
Function Description
The DOROT Quick Pressure Relief Valve ('QR') is activated by pressure of the pipeline. The valve opens
instantly when pipeline pressure exceeds set safe level, thus relieving excess pressure on the network.
When pressure levels return to normal, the valve closes slowly, at an adjustable pace.
2.
Technical Features
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Media: Water; natural, non-aggressive fluids
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Pressure rating: PN16 or PN25 (250psi or 360 psi) per specific valve-model
-
Temp. range:
-
Max. flow velocity for intermittent operation: 8 m/sec (26 ft/sec)
Notes:
-
In case the designed/actual operating conditions are not suitable for the above defined standard
features, please contact Aquestia Applications-Engineering.
-
Refer to specific valve model publications for further details.
3.
Safety Guidelines
-
Injury or damage to the system/surroundings may occur if installation, commissioning, operation or
maintenance instructions are not followed correctly, or if applicable codes of practice and
regulations are ignored.
-
Dorot valves are designed for use in fresh water-systems. Please consult Aquestia Applications-
Engineering in case other media is to be used.
-
Be sure to depressurize the valve, prior to any disassembly of valve or control-trim parts.
-
Electrical works (e.g. connection of solenoid-valves, limit-switches etc.), must be executed by a
certified electrician.
-
Errors in the layout-design, installation or operation may affect valve performance and may be a risk
to the system and operators/users. Please note, the system layout, installation and commissioning of
valves is the responsibility of the system designer, installer and/or user.
-
In any case of doubt and prior to taking any further action, please contact Aquestia representative
for assistance.
Control Function Quick Pressure Relief (QR)
S300, S100
S300: 2 – 80ᵒC (35 - 176ᵒF)
S100: 2 – 60ᵒC (35 - 145ᵒF)
Sizes:
300 8"-32"/200-800mm, 100 8"-24"/200-600mm
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Related Manuals for Aquestia DOROT S300 QR Series
Summary of Contents for Aquestia DOROT S300 QR Series
- Page 1 Please note, the system layout, installation and commissioning of valves is the responsibility of the system designer, installer and/or user. In any case of doubt and prior to taking any further action, please contact Aquestia representative for assistance.
- Page 2 DOROT.QR. 68-510.IOM.EN.0324 Installation, Operation & Maintenance Control Function Quick Pressure Relief (QR) Installation Typical Installations Main header Pressure-Sustaining\Relief The valve can be installed in any position, although installation with the bonnet facing up is recommended for ease of maintenance. b. Flow direction should match the engraved arrow on the bonnet. For maintenance considerations, it is recommended that manual isolation valves (gate or butterfly) are installed, both sides with a strainer between the upstream isolation valve and the valve inlet (as shown in the diagram above).
- Page 3 DOROT.QR. 68-510.IOM.EN.0324 Installation, Operation & Maintenance Control Function Quick Pressure Relief (QR) Commissioning & Adjustment Turn adjusting bolt on Pilot Valve [a] clockwise, all the way. b. Open Ball Valve [b1] and close Ball Valve [b2]. Start the Pump or open Isolation Valve [A]. d.
- Page 4 Aquestia Ltd. reserves the right to make product changes without prior notice. To ensure receiving updated information on parts specifications, please contact us at info@aquestia.com. Aquestia Ltd. shall not be held liable for any errors. All rights reserved.
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