Differential Pressure Gauge, Cryogenic Tanks

Model: PRLD

Supports cryotechnology; applicable for measuring low-temperature mediums
Oil-free is available for measuring special gases such as flammable and explosive gases
Commonly used to measure closed tank truck liquid levels for oil, liquid nitrogen, and other materials; also useful for filter monitoring

◼️ Fig.1: Differential pressure gauge model PRLD
◼️ Fig.2: With Option valve manifold with working pressure indication

Responsive after-sales service / Customizable
High quality / One-year warranty
The image is for reference; the actual product willbe based on your custom specifications.

Description

The PRLD is a high-performance differential pressure gauge specifically engineered for cryogenic tanks and closed tank trucks. It is ideally suited for monitoring liquid nitrogen, liquid oxygen, oils, and other low-temperature media. Featuring a static pressure rating of up to 50 bar and measuring ranges from 0–4 kPa to 0–400 kPa, it provides reliable solutions for liquid-level monitoring and filter condition detection. The instrument’s wetted parts comprise copper alloy flanges, a 304 stainless steel compression spring, and an NBR separating diaphragm, all housed within a rugged 304 stainless steel case with a polycarbonate window. Rated IP65 and equipped with an adjustable pointer, the PRLD is available in oil-free versions for flammable or explosive gases. Optional accessories include valve manifolds, oxygen-service versions, switch contacts, and process adapters, making it a robust and versatile solution for cryogenic and industrial tank applications.

Specifications

Nominal size	6"
Scale range	0 ... 4 kPa to 0 ... 400 kPa
Static pressure	Max. working pressure 50 bar on either side (according to the scale range)
Accuracy	±2.5% F.S.，±1.6% F.S.，±1.0% F.S.
Process connection	2 x G 1/4 (F), centre distance 37 mm
Wetted part	Measuring cell flanges: copper alloy Compression spring: 304 SS Separating diaphragm: NBR Transmission parts: 304 SS
Case/ring	304 SS
Window	Polycarbonate (PC)
Dial	Aluminum, black scale on white
Pointer	Adjustable pointer, black aluminum
Movement	304 SS
IP rating	IP 65
Medium temperature	-40°C … +60°C with oxygen -40°C … +80°C
Ambient temperature	-40°C … +60°C with oxygen -40°C … +80°C
Accessories (Options)	Valve manifold (wetted) with 4" or 6" working pressure indication, switch contacts, oxygen application, adapter for process connection