Automatic Ball Drain Valve 1/2 Inch NPT

Timer-Controlled | Brass/SS Construction | Compressed Air Systems

1/2" NPT PN16 Rating Timer Controlled
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Product Overview

The Supreme Valves automatic ball drain valve is designed for reliable, unattended drainage of condensed moisture from compressed air systems. The 1/2-inch NPT connection allows direct installation into air receivers, compressor aftercoolers, and pneumatic distribution lines in industrial facilities throughout Iraq and the Middle East.

The timer-controlled mechanism provides adjustable drainage intervals (1 second to 45 minutes) and open duration (1 second to 10 seconds), allowing customization for specific system conditions. The brass body construction provides excellent corrosion resistance to water and common condensate contaminants, while optional stainless steel construction is available for aggressive environments.

Unlike manual drain valves that require daily operator attention, the automatic valve operates continuously without intervention, ensuring consistent condensate removal and preventing moisture-related problems in compressed air systems. This is particularly valuable for Iraq industrial facilities operating around the clock.

Applications

  • Air Receivers
  • Compressor Aftercoolers
  • Pneumatic Distribution Lines
  • Air Dryers
  • Filter Bowls

Technical Specifications

Parameter Specification
Size 1/2 Inch (DN15)
End Connection NPT Threaded (Male)
Body Material Brass CW617N / SS316
Ball Material Chrome-Plated Brass / SS316
Pressure Rating PN16 (232 PSI)
Temperature Range -10°C to +90°C
Timer Supply Voltage 110-240V AC (Universal)
Interval Adjustment 1 sec to 45 min
Open Duration 1 sec to 10 sec
IP Rating IP65 (Timer Module)
Media Compressed Air, Neutral Liquids

Features & Benefits

Adjustable Timer

Customizable interval (1 sec to 45 min) and open duration (1 sec to 10 sec) for optimal drainage based on system conditions and condensate generation rate.

Manual Override

Manual test button allows verification of valve operation without waiting for the timer cycle. Essential for commissioning and maintenance in Iraq facilities.

Reliable Sealing

Chrome-plated ball with PTFE seats provides bubble-tight shut-off and long service life even with dirty or oily condensate from compressor systems.

Easy Installation

Standard 1/2 inch NPT connection fits existing drain ports on air receivers and compressors. No special tools or modifications required.

Frequently Asked Questions

What is an automatic ball drain valve and how does it work?

An automatic ball drain valve is a self-operated valve that automatically drains condensation from compressed air systems at pre-set intervals. The valve uses a timer-controlled electric actuator that periodically rotates the ball to the open position, allowing accumulated water and oil to discharge. After a configurable duration (typically 1-30 seconds), the timer closes the valve automatically. This eliminates the need for manual draining of air receivers.

Why do compressed air systems need automatic drain valves?

Compressed air systems generate significant condensation as the air cools after compression. This moisture accumulates in air receivers, pipelines, and pneumatic equipment, causing corrosion, scale buildup, and operational failures. In Iraq's climate with high humidity, condensation is particularly problematic. Automatic drain valves ensure continuous removal of this condensate, maintaining system efficiency and protecting downstream equipment.

What is the difference between timer-controlled and zero-air-loss drain valves?

Timer-controlled (demand) drain valves open periodically based on a preset schedule, regardless of actual condensate levels. Zero-air-loss (level-controlled) drain valves use a float or conductivity sensor to only open when condensate reaches a specific level, minimizing compressed air loss. For Iraq industrial applications with variable production schedules, timer-controlled valves offer flexibility, while zero-air-loss valves are better for energy conservation in continuous operations.

Can the automatic drain valve be installed on existing air receivers?

Yes, automatic ball drain valves with 1/2 inch NPT connections are designed for direct installation into standard air receiver drain ports. The threaded connection allows straightforward retrofit onto existing equipment without modifications. For proper drainage, the valve should be installed at the lowest point of the receiver or system where condensate collects.

Export to Iraq & Middle East

Supreme Valves exports automatic drain valves throughout Iraq and the Middle East for industrial compressed air systems. Our valves are suitable for all major compressor brands and meet international quality standards. Complete documentation packages include material certifications and operating manuals for project commissioning.

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Purchase Options

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Materials of Construction (MOC)

Component Material Specification
Body & Bonnet Ductile Iron (ASTM A536 / EN-GJS-400-15)
Stem / Spindle SS 410 / SS 420
Seat / Trim EPDM / NBR / Bronze

Technical Specifications

Parameter Specification / Standard
Manufacturing / Design Standard EN 1171 / AWWA C509 / BS 5163
Testing Standard API 598 / EN 12266-1
Pressure Rating PN16 / PN25