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900/910 Rapid Pressure Rise Relays (RPRR)
Qualitrol 900/910 Relais d'Augmentation Rapide de Pression (RPRR)
Detection and protection of potentially catastrophic sudden pressure changes
- NEW! - Universal mounting IP65 design
- Different mounting and calibration options for gas or oil applications
- The original mechanical sudden pressure relay with over 50 years of protecting transformers and other electrical equipment
Mechanical
Mounting
Vertical or horizontal (universal) in gas or oil space
Type de montage
Flange mount or thread mount
Dimensions
Flange mount
Four ½” diameter bolt slots equally spaced on a 4” bolt circle
Thread mount
2 ½” - 8 NPT tapered pipe male thread with 3” hex wrench flat
Materials
Bleed valve
Nickel plated brass
Finish
ANSI #70 Powder Coat (standard). C5M Powder Coat (option)
Hardware
Stainless steel
Housing and cover
Die cast aluminum
O-ring seal
Viton
Environmental
Ingress Protection
IP65(standard)
Ambient operating temperatures
-40°F to 180°F (-40°C to 82ºC) standard -67ºF (-55ºC) option
Resistance to vibration
Switch operation not affected when subjected to 50/60 Hz, or whole multiples thereof NOTE: Vibration amplitude of installed relay should be minimized
Min/max pressure (sensing bellows)
-14.7 to 20 PSIG
Electrical
Switch type
Snap action, SPDT
Switch rating (AC)
10 A @ 120, 240 & 480 VAC
Inductive power factor (AC)
0.75
Switch rating (DC)
½ A @ 125 VDC - resistive - ¼ A @ 250 VDC - resistive
Electrical connection
QUALITROL, ANSI or military style connector Direct wiring terminal box
Relais de pression scellé Qualitrol 909
For use with Qualitrol 900/910 series Rapid Pressure Rise Relays and other instruments to maintain momentary alarm and trip circuits.
Connecteurs détachables
These can be used on products such as Remote/Direct Mount Thermometers, Pressure Relief Devices, Rapid Pressure Rise Relays, Resistance Temperature Detector (RTD’s) and Liquid Level Gauges.
Produits connexes
Relais de pression scellé Qualitrol 909
For use with Qualitrol 900/910 series Rapid Pressure Rise Relays and other instruments to maintain momentary alarm and trip circuits.
Kit de Test sur Terrain Qualitrol Kit-013 Portable RPRR | Qualitrol Corp
Complete field test kit for performing confidence testing of Qualitrol 900/910 Rapid pressure rise relays (RPRRs)
Qualitrol FIX-601 Test de Terrain RPRR Test de Calibration d'Usine
Duplicates the production tests performed on all new Qualitrol Rapid pressure rise relays in the Qualitrol factory.
Qualitrol 930 Relais d'Augmentation Rapide de Pression (RPRR)
Multi-function, electronic pressure monitor with adjustable pressure sensitive sensors that provide rapid pressure rise detection.
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