Reid Vapor Pressure Bath

Description

Conforms to ASTM D323, D1267 and related specifications. One-opening and two-opening types. Hydrostatic Test (two-opening type): Withstands 1000psi (6894kPa) gauge hydrostatic pressure per ASTM D1267 specifications. Polished stainless steel test cylinders for vapor pressure tests of liquid petroleum products, volatile crude oil and liquefied petroleum gas (LPG). Consists of upper chamber and lower chamber in required 4:1 volume ratio. O-ring gaskets provide tight seal between chambers and at gauge coupling.

One-opening type is for gasoline and other products having a Reid Vapor Pressure below 26psi (180kPa). Two-opening type is for liquid products having a Reid Vapor Pressure above 26psi (ASTM D323) and for LPG (ASTM D1267). Lower chamber of two-opening apparatus includes straight-through ball valve and 1⁄4" needle valve. For LPG testing, order two-opening type apparatus and accessory bleeder valve assembly. Includes Threaded 1⁄4" Gauge Coupling and O-ring Seals.

Wireless Reid Vapor Pressure Data Acquisition System Windows®-based electronic pressure measurement software designed for ASTM Reid Vapor Pressure test methods. Monitors up to eight pressure vessel channels, graphing pressure and RVP data in real-time for each channel. Each channel can be run independently and configured for the pressure ranges of 0-50, 0-200, and 0-1000 psi. Pressure values can be reported in psi or kPa. Software automatically exports results into Microsoft® Excel for data analysis and storage.

4/6-Unit Reid Vapor Pressure Bath Constant temperature water baths designed for Reid Vapor Pressure determinations of liquid petroleum products and liquefied petroleum gases (LPG). Immerses vapor pressure apparatus at the proper depth per ASTM specifications. Controls bath temperature with ±0.2°F (±0.1°C) precision. Microprocessor PID control provides quick temperature stabilization without overshoot, and the bath is protected by an over-temperature control circuit that interrupts power should the bath temperature exceed a programmed cut-off point. Dual LED displays provide actual and setpoint temperature values in °C/°F format. Double-wall construction with fiberglass insulated stainless steel tank. A sturdy 1" (25mm) flange permits flush-mount benchtop installation for easy access to the bath interior. Built-in holders suspend test cylinders at the required depth. Equipped with overflow stand pipe/drain.

21-Unit Reid Vapor Pressure Bath Constant temperature water bath immerses twenty-one test cylinders for vapor pressure tests on liquid products and liquefied petroleum gas (LPG). Electronic level control automatically maintains the proper immersion depth per ASTM specifications. Heating system employs a 6kW stainless steel heat exchanger with a heavy duty circulating pump to provide rapid heat-up, even heat distribution and ease of servicing. Convenient digital setpoint and display permits rapid selection of any bath liquid temperature within the operating range. A built-in over-temperature limit control protects against accidental overheating. Bath interior and internal components are constructed of heavy gauge stainless steel. Control panel is shielded by a hinged acrylic cover. Includes sturdy angle-iron base with corrosion resistant polyurethane finish. Order pressure gauges and cylinders separately.

Test Method

Vapor pressure is a critical factor in the handling and performance of liquid petroleum and liquefied petroleum gas (LPG) products. The vapor pressure of automotive gasolines is subject to governmental regulation for pollution control purposes.

Features

4/6-Unit Reid Vapor Pressure Bath:
Conforms to ASTM D323, D1267 and related specifications
Free-standing or flush-mount benchtop installation
Microprocessor programmable high accuracy temperature control
21-Unit Reid Vapor Pressure Bath:
Conforms to ASTM D323, 1267 and related specifications
Digital electronic temperature control
Automatic water level control maintains proper immersion depth

Specifications

Conforms to the specifications of: ASTM D323, D1267; GPA 2140; IP 69, 161, 410; ISO 3007, 4256; DIN 51616, 51754; FTM 791-1201

Capacity:

4 Unit: 1 to 4 vapor pressure apparatus, one- or two-opening type
21 Unit: 21 vapor pressure test cylinders

Temperature Range: 212°F (100°C)

Temperature Control Stability: ±0.2°F (±0.1°C)

Heater Range: 0-6000W

Bath Medium:

4 Unit: 13.7 gal (51.9L) water
21 Unit: 58 gal (219.5L) water