Reid Vapour Pressure Apparatus
Product Code : EL-FTLE-10901
Quick Answer: The Reid Vapour Pressure Apparatus measures the vapor pressure of automobile and aviation gasoline, petroleum products, and crude oils, per ASTM D323 and D1267, a critical factor in the handling, performance, and pollution-control regulation of these fuels. The RVP Bath controls temperature to ±0.2°F (±0.1°C) precision, holds up to four vapor pressure cylinders, and displays actual and set-point temperatures on dual LED readouts. RVP Gauges (accurate to ±0.5% of scale range) and RVP Cylinders (one-opening for products below 26 psi, two-opening with ball and needle valves for LPG above 26 psi) are sold separately.
The Reid Vapour Pressure Apparatus measures the vapor pressure of automobile and aviation gasoline, petroleum products and crude oils. Vapor pressure is a critical factor in the handling and performance of liquid petroleum and liquefied petroleum gas products, and the vapor pressure of automotive gasoline is subject to governmental regulation for pollution control purposes; the RVP bath provides high accuracy programmable temperature control and conforms to ASTM D323, D1267 and related specifications.
RVP Bath controls temperature with ±0.2°F (±0.1°C) precision, and determines vapor pressure of gases by immersion of vapor pressure cylinders at the proper depth per ASTM specifications. Dual LED displays provide actual and set-point temperature values in °F/°C format. Holds up to four pressure cylinders. Bath is made of a double-wall construction with fiberglass insulated stainless steel tank. A sturdy 1′ (25mm) flange permits flush-mount bench-top installation for easy access to the bath interior.
RVP Gauges have a large easy-to-read 4-1/2″ (11.4 cm) diameter dial. Accurate to ±0.5% of scale range. Gauges feature an aluminum case with brass handle, blow-out back, and 1/4″ NPT(M) connection. Sold separately.
RVP Cylinders have polished stainless steel construction. Use one-opening cylinder to test gasoline and other products having a vapor pressure below 26 psi. Two-opening cylinder is for liquid petroleum products and liquefied petroleum gas products (LPG) with a vapor pressure above 26 psi. The two-opening cylinder includes straight-through ball valve and a needle valve. For LPG testing, order the bleeder valve assembly for use with the two-opening cylinder. Sold separately.
Standard: ASTM D323, D1267
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Last Updated: September 2026
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