Upstream Pressure Regulating Valves Series 700

An upstream pressure regulating control valve is a critical component in piping and fluid management systems, designed to regulate and maintain consistent upstream pressure in industrial processes. These control valves are essential for ensuring system stability, preventing overpressure conditions, and optimising performance across various applications. By controlling the pressure before it reaches downstream equipment, these valves help prevent damage, ensure safety, and enhance operational efficiency.

In industries where precise pressure control is necessary, the valve will automatically adjust to pressure variations, which ensures that processes continue running smoothly without disruptions caused by excessive fluctuations.

An upstream pressure regulating valve operates by automatically modulating the flow of fluid or gas, in response to upstream pressure changes. These valves can be classified as Pressure-Regulating Control Valves or Self-Acting Pressure Control Valves, depending on their design and function.

An upstream pressure regulating control valve consists of a valve body that houses components and manages the fluid flow, an actuator that opens and closes the valve based on pressure readings, and a pilot valve for enhanced accuracy. It also includes a diaphragm or piston that reacts to pressure fluctuations, a spring mechanism to maintain pressure settings, and a seat and plug to regulate the flow path, all working together to ensure consistent upstream pressure.

Upstream pressure regulating control valves are widely utilised across numerous industries where pressure stability is crucial. Some of the most common sectors include:

Chemical Processing & Petrochemicals – Used in chemical plants and petrochemical refineries to maintain safe and consistent pressure levels in corrosive and high-pressure processes.

Oil & Gas Industry – Regulates pressure and prevents sudden pressure surges in gas processing plants, crude oil refining, and LNG facilities.

Pharmaceutical Manufacturing – Ensures precise pressure control in drug production processes, including filtration, sterilisation, and reactions.

Food & Beverage Processing – Maintains pressure in pipelines carrying liquid ingredients, steam, or gases to optimise hygiene, prevent contamination, and improve efficiency.

Power Generation – Used in steam and hydroelectric facilities to regulate pressure in various systems to ensure stable turbine operation.

Yes, upstream pressure regulating valves are designed to handle some high-pressure applications, care needs to be taken as they are limited based on the design constraints of the valve depending on the type required. They are available in various pressure ratings, typically ranging from ANSI 150 to ANSI 300, with higher ratings available upon request.