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Quick Pressure-relief

Quick Pressure-relief

30/QR - Quick Pressure-relief Valve - Series 300

The Dorot Series 300 Pressure-Sustaining (’30-QR’) activates by the pressure of the pipeline. The valve opens instantly when the pressure in the pipeline exceeds the safe level, thus relieving excessive pressure from the network. When the pressure returns to normal, the valve closes slowly, at an adjustable pace.

  • Better performance:

- Regulates at a stable mode, regardless of valve-size, down to near-zero flow. Thus, eliminating the need for a special low flow plug-design (such as ‘V-port’) or a bypass valve.

- ‘Floating’, low-friction internal-trim design, guided by unique LPT® device.

  • Increased reliability:

- All control ports are fitted with SST sleeves for preventing corrosion-blockage

- Pre-shaped reinforced diaphragm – for easier assembly and improved longevity.

  • Reduced periodic inspection\maintenance labor:

- The control-trim is fitted with a self-flushing, inline control-filter.

- Easy in-situ adjustment and maintenance.

  • Versatility:

- A standard and simple single-chamber valve design, provides smooth operation.  Conversion to a double chamber is a patented option.

 

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QR - Quick Pressure-relief Valve - Series 100

The valve opens instantly when the pressure in the pipeline exceeds the safe level, thus relieving excessive pressure from the network. When the pressure returns to normal, the valve closes slowly, at an adjustable pace.

  • No slam operation
  • Simple and reliable design
  • Easy installation and maintenance
  • Low Resistance and high flow capacity
  • Protection for sewage as well as clean water pumping systems
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QR - QUICK-RELIEF SAFETY VALVE - SERIES 500

The valve opens instantly when the pressure in the pipeline exceeds the safe level, thus relieving excessive pressure from the network. When the pressure returns to normal, the valve closes slowly, at an adjustable pace.

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