Pressure Control Valves SPB 08

  • NG # 04079-HW-coax-024

The SPB 08 Pressure Control Valve is an externally controlled proportional bypass valve designed for precise pressure regulation of gaseous and liquid media up to 200 bar. Its compact body with G 3/8 threaded ports, rapid response time, and robust protection rating make it suitable for demanding industrial applications where accurate pressure control and system protection are essential. The valve accepts electrical setpoint signals for stepless pressure adjustment and is built for continuous duty operation under varied environmental conditions.

Manufactured By :
COAX
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Overview

The SPB 08 belongs to the SPB series of pressure control valves offered by muller co‑ax. These valves serve as pressure limiting devices (bypass valves) that maintain a stable system pressure by returning excess fluid to the reservoir. The SPB design enables continuous and proportional pressure control across the full regulation range, making it advantageous in systems that require variable pressure levels rather than just a single preset value.

Key features include a compact G 3/8 threaded connection, fast settling time, and extensive protection and duty ratings suitable for a wide range of industrial fluid applications. Typical usage scenarios include hydraulic circuits, coolant pressure systems, and machine tool applications, where maintaining precise pressure is critical to performance, safety, and component longevity.

The SPB 08 supports external control signals for stepless pressure adjustment and offers flexibility in seal and body materials based on media and application requirements. Protection class IP65 and a robust insulation rating further enhance its suitability for industrial environments.

Specification

General

  • Valve type: Pressure control (bypass) valve, externally controlled proportional valve
  • Application: Pressure regulation for gaseous and liquid media
  • Design: Stepless pressure regulation via control signal

Pressure and Flow

  • Pressure regulation range: 10 – 200 bar
  • Orifice: DN 8 mm (nominal)
  • Max. flow rate: Approximately 1.1 m³/h

Connections

  • Ports: Threads G 3/8
  • Electrical connection: Plug with 7 contacts, suitable for wire diameter 6‑8 mm

Operating Conditions

  • Media temperature range: 0 °C – 60 °C
  • Ambient temperature range: 0 °C – 50 °C
  • Settling time: < 200 ms

Performance and Protection

  • Insulation rating: H 180 °C
  • Protection class: IP65
  • Energized duty rating: ED 100 %

Control / Signals

  • Control types (typical options): 0‑10 V or 4‑20 mA setpoint signals (via external proportional pilot valve)*
    *Specific signal options depend on configuration.

Materials and Seal Options

  • Body materials: Commonly brass / galvanized steel (application dependent)*
  • Seal materials: NBR, FPM, other materials available depending on design*

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