Shree Chamunda Brass Products

Precision Grub Screw for Pressure Gauge Flow Control

Brass Damping Screw (4mm)

Headless 4mm brass damping (restrictor) screw used in pressure gauges to regulate inlet flow, reduce pulsation, and stabilize readings—durable, corrosion-resistant, and precision threaded.

The Brass Damping Screw, also known as a Grub Screw, Set Screw, Throttle Screw, or Restrictor Screw, is a critical micro component used in pressure gauges to control fluid flow and stabilize readings. Installed flush inside the gauge body (inlet port), it restricts incoming air/liquid flow to reduce pulsation and protect the internal mechanism from sudden pressure fluctuations. Manufactured from premium brass, it offers excellent corrosion resistance, durability, and reliable performance in demanding industrial environments.

Key Features

Customization available

Flow restriction control to minimize sudden pressure surges
Protects gauge pointer and internal mechanism from pressure shocks
Corrosion resistant brass suitable for harsh and humid environments
Compact headless design for flush installation without affecting external assembly
High precision threading for secure fit and consistent performance

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Material

Premium Brass

Size

4 mm

Applications

Where this product is commonly used — from standard assemblies to custom requirements.

Pressure Gauge Inlet ControlFlow RestrictionPulsation DampeningEquipment Protection

Pressure Gauge Flow Control

Installed in the inlet port to restrict and control incoming fluid or air flow.
Helps regulate flow for improved measurement stability.

Pulsation Dampening

Reduces the effect of sudden pressure fluctuations from pumps, compressors, and high-pressure lines.
Protects the gauge mechanism from pressure shocks and vibration.

Stable Gauge Readings

Minimizes pointer vibration for clear, steady, and accurate readings.
Improves repeatability during monitoring and calibration checks.

Equipment Protection

Helps extend service life of gauges by preventing mechanical stress on internal components.
Recommended for applications with frequent pressure surges.

Why Choose This Product?

Built for accurate fitment, consistent finishing, and reliable performance in real‑world applications.

Benefits

Enhances accuracy and stability of pressure gauges
Protects sensitive internal components from pressure fluctuations
Durable, long-lasting brass construction
Ideal for industrial and precision instrumentation applications

Technical Specifications

Standard technical information. Custom specs are available on request.

Product Name

Brass Damping Screw

Size

4 mm

Material

Premium Brass

Type

Grub Screw / Set Screw (Restrictor)

Drive Type

Allen Key or Slotted

Application

Pressure Gauge Inlet Control

Mounting Style

Headless, flush fitting inside gauge body

Function

Flow restriction / pulsation damping for stable readings

Also Known As

Grub Screw · Set Screw · Throttle Screw · Restrictor Screw · Damping Screw

Product Name	Brass Damping Screw
Size	4 mm
Material	Premium Brass
Type	Grub Screw / Set Screw (Restrictor)
Drive Type	Allen Key or Slotted
Application	Pressure Gauge Inlet Control
Mounting Style	Headless, flush fitting inside gauge body
Function	Flow restriction / pulsation damping for stable readings
Also Known As	Grub Screw · Set Screw · Throttle Screw · Restrictor Screw · Damping Screw

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Need Custom Brass Components?

We can manufacture components as per your drawings and specifications. Contact us for a free quotation.

Quick contact

+91 8849056292 / +91 8849045239 info@shreechamundabrassproducts.com