Industry

DOROT S300 QR

Diaphragm-actuated, Rigid Seal, Quick Pressure Relief Globe Valve

DOROT S300 QR, is a Diaphragm-actuated, Rigid Seal, Quick Pressure Relief Globe Valve, activated by the pressure of the pipeline. The valve opens instantly once pressure in the pipeline exceeds a safe preset level; relieving excessive pressure in the system. When the pressure returns to normal, the valve closes slowly, at an adjustable pace.

Go to S300 Basic Valve
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Product Page (PDF)

EN

ES

FR

IOM (PDF)

QR 68-510 - S300 S100 (8-32 in) EN

QR 68-510 - S300 S100 S500 (1.5 - 6 in) EN

BIM Models

Technical Specifications

Size Unit

Size range

DN40 - DN1000 (1½”- 40")

Pressure rating

PN16, PN25

Working temperature

0ᵒ – 80ᵒ C

End connection type

Threaded, Flanged, Grooved

Standard construction materials

Body and Cover

Stainless Steel

Internal Parts

Stainless Steel

 

Seals + Diaphragm

EPDM

* Other optional materials available upon request

DOROT S300 QR

DOROT S300 QR

DOROT S300 QR

DOROT S300 QR

Features & Benefits

Superior seat design, guided by the unique LTP (Linear Throttling Plug)
  • Enables regulation to ‘near-zero’ flow as standard for all valve sizes
  • Provides high reliability and operational stability
Stainless Steel control port sleeves
  • Protects against corrosion and blockage, reducing time and cost on maintenance
Self-cleaning inline filter
  • Cuts down on frequency of inspections and maintenance, significantly reducing labor costs
Low cavitation index
  • Eliminates conditions leading to cavitation over a wide operating pressure range
No dynamic O-rings
  • Superior design reduces ongoing maintenance due to leakage or breakdowns
Safety air release
  • Easily removes air from the control valve chamber, to ensure stability and optimal system performance

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