Precision Coolant Pressure Control Valves for Metal Machining – RSG GmbH

Superior Coolant Management in High-Speed Metalworking

Coolants composed of oil or emulsions are essential in high-speed metal machining. Precision-controlled coolant pressure ensures optimal lubrication at the tool, enabling exceptional surface finish and dimensional accuracy on high-value workpieces. RSG Regel- und Steuergeräte GmbH specialises in advanced pressure control valve technology, tailored to meet these exacting demands.

Benefits of Regulated Coolant Pressure in Machining Applications

Achieve Precision and Surface Perfection

Consistent coolant pressure delivers:

Maximum lubrication at tool contact points

High dimensional accuracy and repeatability

Enhanced surface quality on workpieces

Superior chip evacuation from blind holes

Prevent Tool Wear and Improve Equipment Longevity

Controlled pressure helps cool the cutting edge effectively, minimizing thermal stress and prolonging the life of tools. It also reduces the risk of premature tool wear, especially under demanding machining cycles.

RSG 785 Series – High-Precision Pressure Limiting Valves

RSG's 785 Series pressure limiting valves offer precise, stable pressure regulation, independent of coolant flow volume. These valves are critical for processes where flow varies, such as during:

Tool changes

Spindle start/stop cycles

Feed rate adjustments

Key Features of RSG Pressure Control Valves

Continuous coolant pressure regulation

Pressure-limiting and return-line configuration (bypass)

Protection for pumps and pipes from overpressure

Zero fluctuation performance during variable demand

Valve Variants to Suit Every Application

RSG provides a comprehensive range of pressure control valves, adaptable to diverse system setups and voltage requirements.

Manual Pressure Control Valves

RSG 785H Series (10–200 Bar) – AISI 303 Stainless Steel

90° angle configuration for space-saving installation

Manually adjustable via external air pilot

RSG 780H Series (5–120 Bar) – Galvanised Steel Coaxial Design

Robust design for industrial applications

Manual pressure adjustment via air pilot

On/Off Solenoid-Controlled Valves

RSG 785P Series (3–200 Bar) – 90° Solenoid Valve Integration

RSG 780P Series (5–120 Bar) – Coaxial Solenoid Version

Solenoid options: 24VDC, 230VAC (50/60 Hz), 12VDC, 24VAC, 110VAC

Enable automatic shut-off control of coolant flow

Proportional Electro-Pneumatic Valves for Dynamic Systems

RSG 785E Series (12–200 Bar) – 90° Electro-Pneumatic Valve

RSG 780E Series (5–120 Bar) – Coaxial Electro-Pneumatic Valve

Controlled via analogue signal (0–10V)

Ideal for soft-start operations and low-pressure recirculation

24VDC supply for automated coolant management

Energy Efficiency & Compatibility with Frequency-Controlled Pumps

RSG pressure control valves seamlessly integrate with frequency-controlled positive displacement pumps, enabling:

Rapid pressure adjustment

Burst protection for sensitive components

Reduced power consumption

Lower thermal input into coolant systems

Ideal for Oil and Emulsion-Based Coolants

These valves are specifically designed to operate with oil and emulsion coolants commonly used in:

CNC machining centres

Milling and turning operations

Deep-hole drilling systems

Why Choose RSG GmbH for Coolant Pressure Control?

With precision engineering, versatile valve designs, and seamless integration capabilities, RSG GmbH offers cutting-edge solutions for metalworking industries focused on quality, efficiency, and equipment longevity.

Need help selecting the right valve? Contact our technical specialists today for expert support.