In any industrial plant, pressure measurement is a critical point in the process control system. A poorly protected or inadequately isolated pressure gauge can become an operational risk, compromising industrial safety and leading to unplanned shutdowns with high economic impact.

Aware of this reality, ZAES presents the relaunch of its new series of gauge valves, also known as gauge valve, needle valve or manifold valve, designed to offer greater safety, reliable isolation and maximum durability in industrial pressure systems.

This new range consolidates ZAES as a specialised manufacturer of industrial instrumentation valves, in line with the international quality and safety standards required by the most demanding sectors.

What is a pressure gauge valve and why is it essential in industrial instrumentation?

A pressure gauge valve is an isolation device installed between the process line and the pressure measuring instrument. Its main function is to allow safe shut-off of the fluid prior to any technical intervention.

It allows:

  • Replace the pressure gauge without stopping the installation.
  • Perform periodic calibrations.
  • Execute controlled purges.
  • Check for faults.
  • Protect the operator from pressurised fluids.

In sectors such as energy, petrochemical, chemical, thermal generation, industrial gas or food industry, stopping a process means significant economic losses. For this reason, the pressure gauge isolation valve has become an indispensable component in any modern industrial instrumentation system.

Safety and reliability-oriented engineering

ZAES has developed this series under the criteria of structural robustness, absolute watertightness, mechanical precision and global compatibility.

AISI 316 carbon and stainless steel construction

Valves are available in:

  • Carbon steel: suitable for compressed air, water, oil, hydraulic systems and standard applications.
  • AISI 316 stainless steel: recommended for steam, corrosive fluids, chemical applications, food and pharmaceutical processes.

The reinforced body guarantees resistance to high pressures, vibrations and aggressive environments, ensuring a long service life even under demanding conditions.

Precision-machined metal locking seat

The locking system is designed to ensure:

  • Total watertightness.
  • Absence of leaks.
  • Progressive closure.
  • High wear resistance.
  • Reliable operation in repeated cycles.

In applications where process safety is a priority, the quality of the sealing seat is crucial to avoid incidents.

International compatibility: BSP and NPT

The new series is manufactured with:

  • BSP (G) thread, European standard.
  • NPT thread, American standard.

This dual compatibility facilitates integration into international installations and imported machinery, eliminating unnecessary adapters and reducing leakage points.

Ergonomic operation and progressive control

The drive handwheel has been designed to provide smooth and precise control, even in complex industrial environments. The progressive closing prevents pressure shocks that could damage the instrument or the process line, protecting the entire system.

Strategic benefits in industrial plants

The incorporation of pressure gauge valves brings clear operational advantages:

Secure instrument isolation
Allows the pressure gauge to be removed without direct exposure to the pressurised fluid.

Operational continuity
Production does not stop during maintenance or replacement.

Efficient purging
Eliminates air pockets that affect measurement accuracy.

Ease of calibration
Compatible with preventive and predictive maintenance programmes.

Risk reduction
First check point for overpressure or leakage in instrumentation systems.

Sectors where ZAES pressure gauge valves make the difference

Steam and thermal generation plants
Boilers, collectors and condensate systems.

Chemical and petrochemical industry
Processes with aggressive fluids requiring frequent maintenance.

Industrial gas networks
Applications where safe isolation is a priority.

Food and pharmaceutical industry
CIP and SIP processes with high sanitary standards.

Hydraulic and pneumatic systems
Presses, pumps, compressors and industrial machinery.

Refrigeration and general manufacturing
Pressure systems in continuous production environments.

Full integration with instrumentation solutions

ZAES pressure gauge valves are designed to be integrated with:

  • Industrial pressure gauges.
  • Pulsation dampers.
  • Steam siphon tubes.
  • Instrumentation fittings and accessories.

This makes it possible to set up a complete, homogeneous and safe pressure measurement line, reducing installation errors and maintenance times.

ZAES versus leading international manufacturers

With this new range, ZAES competes directly with leading manufacturers such as:

  • WIKA
  • Ashcroft
  • Badotherm
  • Winters Instruments

The strategic difference of ZAES lies in:

  • Flexible manufacturing.
  • Optimised delivery times.
  • Competitive value for money.
  • European design adapted to international standards.
  • Specialised technical support.
  • Wide range of industrial valves and pressure instrumentation.

ZAES offers not only a product, but a complete solution for the control and safety of pressurised systems.

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