Brass Reducing Bush

Wrong thread matchups or low-grade bushes often cause leaks, thread stripping, or reduced pressure in systems. Our Brass Reducing Bush handles thread transitions using tight-tolerance threads and reinforced walls.

Inlet Thread Size

1/4″ – 2″ (NPT, BSPT, BSPP, Metric)

Outlet Thread Size

1/8″ – 1.5″ (Must be smaller than inlet; custom combinations available)

Thread Type

Male (M) / Female (F) – NPT, BSPT, BSPP, Metric

Material Grade

C36000 (Free-Cutting Brass) / CW617N (EN Standard)

Pressure Rating

150 PSI – 600 PSI (10.3 – 41.4 bar) (size-dependent)

Product Description

It supports NPT, BSP, BSPT, and Metric in both inlet and outlet, with full flexibility across 1/4 inch to 2 inch ranges. High Cv values and leak-resistant thread depths ensure performance in air, oil, and fluid systems.

Temperature Range

-20°F to 400°F (-29°C to 204°C) (non-flammable fluids)

Overall Length

0.5″ – 2.5″ (depends on inlet/outlet size)

Hex Size

0.4″ – 1.25″ wrench flats (for installation grip)

Internal Flow Diameter

0.15″ – 1.5″ (tapered or stepped based on reduction)

External Diameter

0.35″ – 2″ (varies with thread sizes)

Thread Engagement Length

0.2″ – 1″ (taper-dependent; custom for leak-proof sealing)

Finish/Coating

Natural Brass / Electroless Nickel (ENP) / Chrome / Custom Coatings

Standards Compliance

ASTM B16, ASME B1.20.1 (NPT), ISO 228 (BSP), DIN, JIS, Custom Certifications

Weight

0.03 lb – 1.5 lb (size/material dependent)

Wall Thickness

0.08″ – 0.25″ (reinforced for high-pressure applications)

Flow Coefficient (Cv)

0.8 – 12.0 (adjustable for reduced flow requirements)

Technical Advantages

Standard reducers often fail under torque or expose too much thread length, causing seal breakdown. Our bushes use calibrated hex flats, controlled thread engagement, and stepwise internal profiles to support reduction needs. Each unit comes with options for ENP or Chrome finish based on fluid type and wear conditions. Thread depth and wall thickness vary by application pressure, ranging from 150 to 600 PSI.

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Need reliable Flanges for your next project? Get in touch with us today, and we’ll help you find exactly what you need!

Industry Applications

Hydraulic Manifolds

Adapts larger inlets to smaller lines while handling over 400 PSI without thread fatigue.

Pneumatic Distribution Panels

Offers exact internal diameter and Cv control for stable downstream airflow.

Water Treatment Skids

Resists dezincification and thread seizure under wet or fluctuating pressure conditions

Compressed Air Tools

Maintains seal even after frequent tool changes or repositioning in tight locations.

Refrigeration Units

Handles low temperatures and internal pressure swings without wall cracking or leaks.

Diesel Generator Assemblies

Adjusts reducer sizes without compromising vibration resistance or thread grip.

Adapted for Fittings That Need Rework-Free Integration

Many assemblies demand a balance of thread depth, coating, and size tolerance without secondary machining. These bushes simplify installation by offering adjustable engagement lengths and tool-friendly hex sizes.

Even compact spaces or high-flow systems can get customized combinations for tight layouts or Cv targets. Whether metric-to-imperial or parallel-to-tapered threads, every fit is matched as per your assembly constraints.

Having Doubts? Our FAQ

Check all our Frequently Asked Question

Can you match a specific thread combination not listed in your standard range?

Yes, we can machine any inlet-to-outlet thread pair, including mix-and-match between Metric, BSPT, BSPP, and NPT. Just confirm your thread class, pitch, and sealing requirement. We adjust the engagement length and profile as per your spec.

What if our assembly needs a minimum internal flow or Cv value?

We can set internal step, taper, or bore profile to meet your Cv or flow target. Tell us the media type and target flow rate. We’ll adjust inner dimensions without compromising wall strength.

Is it possible to control the wrench flat size for tight-space installations?

Yes, we can increase or reduce hex width or shift flats based on access limits in your housing or panel. Our machining setup allows fine-tuning of overall length and hex profile. This avoids clashes during installation without post-machining.

Can we get the part with nickel or chrome finish to match fluid compatibility or design aesthetics?

We offer Electroless Nickel, Chrome, or custom finishes depending on media, temperature, and appearance goals. If your system requires extra corrosion protection or visual consistency, we adapt coating thickness and finish type. Each finish is applied after threading to avoid fit issues.

Do you support quantity flexibility for R&D or pilot runs before bulk order?

Yes, we support small batches with full customization so you can validate fit and performance. Once approved, we scale to bulk without changing specs. This helps reduce any first-article mismatches or delays during production.

Get Clarity with Our Manufacturing Insights

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Components Built for Critical Performance

Engineered Products for Critical Applications

Brass Reducing Bush

Inlet Thread Size

Outlet Thread Size

Thread Type

Material Grade

Pressure Rating

Product Description

Temperature Range

Overall Length

Hex Size

Internal Flow Diameter

External Diameter

Thread Engagement Length

Finish/Coating

Standards Compliance

Weight

Wall Thickness

Flow Coefficient (Cv)

Technical Advantages

Let's Get Started

Industry Applications

Adapted for Fittings That Need Rework-Free Integration

Related products

Brass Reducing Sockets

Brass Male/Female Adapters

Having Doubts? Our FAQ

Get Clarity with Our Manufacturing Insights

We'd love to Manufacture for you!

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

Other Locations

GENERAL ENQUIRIES

Get Your Quote Now

Brass Reducing Bush

Get Latest Price

Brass Reducing Bush

Get Latest Price