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Designed Turned/Machined Parts

Plugs

Precision Breather Valves, Drain Plugs, and Filler Plugs for Demanding Applications

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Pressure regulation, contamination control, and leak-proof functionality

Versatile plug solutions: breather, filler, and drain types, built for longevity and reliability in automotive, hydraulic, and mechanical systems.

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Breather Valve

Our precision-engineered breather valve is designed to deliver efficient performance within a pressure range of 15 mbar to 100 mbar, ensuring precise ventilation and pressure regulation in critical systems. Crafted from high-quality, durable materials, this compact and robust component is ideal for a wide range of applications across the automotive, mechanical, and industrial equipment sectors, providing reliable functionality and long-lasting performance.

Comparison Table

Breather Valves vs. Conventional Plugs

Feature

PML Breather Valve

Standard Plug/Fitting

Pressure Range

15–100 mbar

Not Pressure Calibrated

Compact Form Factor

Yes

Varies

Sealing Integrity

Leak-proof

Standard Threads

Debris Filtering (Magnetic)

Optional in drain plugs

Not Available

Material Strength

High

Varies

Customization

Available

Limited

Corrosion Resistance

High

Moderate

Application Flexibility

Multi-industry

Limited Use

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Drain Plug & Filler Plug

At PML, we specialize in designing and manufacturing premium high-performance drain plugs and filler plugs, tailored to meet the rigorous demands of the automotive and mechanical industries. Our products are meticulously engineered to deliver unmatched performance, exceptional durability, and trusted reliability, ensuring optimal functionality for every application.

Manufacturing Process

Engineered for automotive and industrial equipment where durability, magnetic debris capture, and leak-free operation matter most.

1

Raw Materials

We use high-strength metals like stainless steel and treated alloy steels for extended life and corrosion resistance.

2

Magnet-Integrated Drain Plugs

Drain plugs are equipped with powerful magnets to attract and retain metallic debris, helping extend equipment life.

3

Machining & Threading

Precision machining ensures tight thread tolerance and compatibility with standard and custom fittings.

4

Surface Treatment

Anti-corrosion treatments are applied to withstand oils, fuels, and harsh environmental exposure.

5

Quality Assurance

Every plug is pressure-tested and inspected to meet OEM and international standards.

6

Packaging

Packaged with protective caps and labeling for secure transit and easy identification.

7

Dispatch

Delivered on time with customizable logistics and supply-chain integration.

Process Capability

Technical Specifications

FeatureBreather ValveDrain/Filler Plugs
Pressure Range15 – 100 mbarNA
Material OptionsStainless Steel, Alloy SteelSame
Thread ToleranceUp to ±0.005 mmUp to ±0.005 mm
SealingLeak-ProofLeak-Proof
Magnet IntegrationNoOptional
Size RangeCustomizableCustomizable
Surface TreatmentAnti-Corrosion CoatedAnti-Corrosion Coated
ApplicationsAutomotive, IndustrialAutomotive, Hydraulic, Gearbox

Advantages of PML’s Plug Solutions

1

Precision Pressure Regulation

Maintains optimal system pressure in sensitive components.

2

Debris Collection in Drain Plugs

Integrated magnet technology protects your system from internal damage.

3

High Corrosion Resistance

Treated surfaces stand up to oil, fuel, and harsh weather conditions.

4

Custom Fit & Finish

Adaptable to customer requirements across industries and machinery types.

5

Reliable Leak-Proof Operation

Engineered for critical safety and system integrity.

6

Versatile Application Use

From powertrains to pneumatics and fluid tanks, these plugs serve across sectors.

Industries Served

1

Automotive

2

Industrial Machinery

3

Pneumatic/Hydraulic Systems

4

Heavy Equipment

Trust Reliability & Quality

With over 60 years of manufacturing excellence, PML delivers Plugs trusted by OEMs and Tier 1 suppliers across sectors demanding robust performance.

ISO 45001

ISO 45001

Occupational Health and Safety (OH&S) management systems

ISO 14001

ISO 14001

Environmental Management Systems (EMS)

ISO 9001

ISO 9001

Quality Management Systems (QMS)

IATF 16949

IATF 16949

International Standard for Automotive Management Systems

AS 9100

AS 9100

Aerospace Quality Management System (QMS)

Frequently Asked Questions

Breather valves regulate internal pressure, allowing air to pass while preventing fluid leakage or contamination.

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Pioneering cutting-edge technology to develop reliable, high-performance magnetic components and engineering solutions.