Vapor Pressure Test Apparatus | ASTM D323 & D1267 Compliant Fuel and LPG Testing Equipment

Reid Vapor Pressure Bath

KMCMCNQS

Brand: Koehler Instruments

Category: Petroleum Apparatus

Industry: Material Science & Chemistry, Petroleum & Petrochemicals

The Vapor Pressure Test Apparatus is a precision-engineered system designed to determine the vapor pressure of volatile petroleum products and liquefied petroleum gases (LPG) in accordance with ASTM D323 and ASTM D1267.
This unified setup includes all required components—test cylinders, pressure gauges, and constant temperature bath—to ensure accurate, repeatable measurements of vapor pressure for both liquid fuels and LPG samples under controlled conditions.

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The Vapor Pressure Test Apparatus determines the vapor pressure of gasoline, volatile crude oil, and LPG samples under standardized temperature and pressure conditions.
The apparatus combines the test setups required by ASTM D323 (for liquid petroleum products) and ASTM D1267 (for liquefied petroleum gases) into a single, versatile system that meets multiple testing needs within refinery, fuel quality, and research environments.

For liquid petroleum products, the system employs one- or two-opening test cylinders, pressure gauges, and a constant temperature bath with precise temperature regulation.
For LPG testing, it utilizes two-opening test cylinders, bleeder valve assemblies, pressure gauges, flexible tubing, and the same constant temperature bath to maintain test temperature stability.

Constructed with corrosion-resistant materials and temperature-stable components, the apparatus ensures safety, accuracy, and repeatability across a wide range of petroleum testing applications.
The bath’s microprocessor or analog controller provides exceptional temperature stability, while the pressure measurement system guarantees high accuracy and compliance with international standards.

Conforms to ASTM D323 (Liquid Fuels) and ASTM D1267 (LPG) test methods
Includes constant temperature bath, test cylinders, pressure gauges, and required fittings
Dual compatibility – suitable for both liquid and gaseous petroleum products
Accurate temperature and pressure control ensures reproducible results
Stainless steel or brass construction for long service life and corrosion resistance
Flexible tubing and bleeder valve assemblies provided for LPG testing
Digital or analog bath temperature control with ±1°C stability
Safety relief features to prevent overpressure during testing
Compact and rugged design suitable for refinery and field laboratories

Accurate, safe, and compliant vapor pressure measurement.
The Vapor Pressure Test Apparatus (ASTM D323 / D1267) provides precise vapor pressure evaluation for gasoline, crude oil, and LPG samples using a unified constant temperature bath and pressure measurement system.
Whether testing volatile fuels or liquefied gases, the apparatus delivers exceptional repeatability, temperature stability, and standardized compliance across industries.
Trusted by refineries, petroleum QA labs, and R&D centers, it ensures data accuracy, operational safety, and testing efficiency for fuel volatility analysis.

Parameter	Specification
Conformance Standard	ASTM D323 (Liquid Products); ASTM D1267 (LPG)
Cylinder Type	One- or two-opening (ASTM D323); Two-opening with bleeder valve (ASTM D1267)
Pressure Range	0–200 psi (13.8 bar) or as per specification
Pressure Gauge Accuracy	±0.5% of full scale
Temperature Range	Ambient to 60°C (140°F)
Temperature Stability	±1°C
Bath Capacity	18–20 L water or heat transfer fluid
Temperature Control Type	Analog or digital microprocessor
Bath Medium	Water or glycol mixture
Electrical Requirement	115V 60Hz or 220–240V 50/60Hz, Single Phase
Safety Features	Over-temperature cutoff, pressure relief system

Parameter	Specification
Dimension (L×W×H)	16 × 12 × 21 in (41 × 30 × 54 cm)
Net Weight	26–30 lb (11.8–13.6 kg)

Parameter	Specification
Shipping Weight	45–48 lb (20.4–21.8 kg)
Volume	6–10 cu. ft.

Determination of vapor pressure of gasoline, volatile crude oil, and fuel blends (ASTM D323)
Measurement of vapor pressure of liquefied petroleum gases (LPG) (ASTM D1267)
Refinery and fuel quality control testing
Storage and transport safety evaluation of petroleum products
R&D testing for volatility and fuel composition studies
Compliance verification for ASTM, IP, and ISO fuel specifications

Reid Vapor Pressure Bath

Reid Vapor Pressure Bath

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