Pilot-operated pressure regulator valve Before-valve control

Pilot-operated pressure regulator valve Before-valve control

The Pilot-operated pressure regulator valve ARL-Before-valve control is an integrated system consisting of a control valve, actuator, and a pilot specifically utilized for pressure setting. This unit is designed to effectively control differential pressure within pipelines conveying vapors, gases, and non-corrosive liquids. Operationally, when the before-valve pressure rises, the control valve is triggered to open. By utilizing the Pilot-operated pressure regulator valve ARL-Before-valve control, industrial systems benefit from a modular design and high-sensitivity pressure balanced structure.

Key Features:

• High Sensitivity: Equipped with built-in bellows and a pressure balanced structure for precise regulation.
• Reliable Performance: Features a compact, maintenance-free design that ensures consistent, long-term operation.
• Modular Design: Adopts a standard modular assembly, allowing for various combined control configurations.
• Versatile Actuation: Offers compatibility with both diaphragm and piston self-operated actuators.
• Efficient Flow: Designed with a “quick open” flow characteristic for rapid response to pressure changes.

Technical Specifications:

• Size: DN15-300 (1/2″-12″)
• Pressure Class: PN1.6, 4.0Mpa (ANSI 150, 300LB)
• Body Materials: WCB, CF8, CF8M, CF3M
• Body Type: Straight-through type
• Bonnet Type: Standard type and heat dissipation type
• Pressure Setting Range: 0.01~0.12, 0.08~0.25, 0.2~0.5, 0.45~1, 0.6~2.0
• Applicable Temperature Range: -30°C ~ 350°C
• Leakage Class: ASME B16.104 V (soft seal) and ASME B16.104 IV (hard seal)
• Pipe Connection: Flange type
• Set Value Error: ±4%

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