Self-Contained, Self-Actuating, Positive Operation
The QR-E valve utilizes Ogontz’s proven self actuating design in which hydrocarbon wax automatically opens the valve before the freezing point of water. Prior to your system freezing, the QR-E fully opens to provide for system drainage.
Automatic Freeze Protection
Designed for freeze protection, the QR-E is a tempered fluid-sensing valve. The QR-E sensing the fluid temperature and snaps fully open at 37°F, remaining open until manually reset.
Unit of Measure


Valve Type

N/A QR-E Automatic Railroad Freeze Protection Control Valve

NPT Thread Size

N/A 1-1/4 in

Port Size

N/A 1 in

Full Open Set Point Temperature

N/A 37 ºF

Maximum Operating Pressure

N/A 50 psig

Flow Coefficient (Cv)

N/A 17.8

Body Material

N/A Bronze

Dimensional Drawing

QR-E Schematic Figure

Net Weight

N/A 4.5 lb

The Ogontz Guarantee

N/A We will repair or replace on a no-charge basis, F.O.B. Willow Grove, PA, QR-E units returned to us within 12 months if found to be defective in material or workmanship.

Typical Applications

N/A The QR-E provides positive freeze protection on locomotive engine systems and drain storage tanks on passenger rail cars. The QR-E provides protectionfor all of the following: watercooled compressor heads, exposed chiller lines, sump systems, cooling towers and related piping, heat exchangers, or any application requiring positive drainage.