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CONTROL DEVICES Unloader Valve Mark 4: 1/2 in Outlet Size, 3/8 in Exhaust Size - Piloted Unloader Valves for Air Compressors
CONTROL DEVICESPiloted Unloader Valves for Air Compressors

CONTROL DEVICES Unloader Valve Mark 4: 1/2 in Outlet Size, 3/8 in Exhaust Size

The CONTROL DEVICES Unloader Valve Mark 4 is a piloted unloader valve for air compressors, featuring a 1/2 in outlet size and 3/8 in exhaust size. It is constructed from forged brass and has a maximum air flow of 40…

SKU 3G-OTH-154362

Also listed as: LGM400401CBA1 · LGM40 0401CBA1

Brand
CONTROL DEVICES
Item
Unloader Valve Mark 4: 1/2 in Outlet Size, 3/8 in Exhaust Size
Category
Piloted Unloader Valves for Air Compressors
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

CONTROL DEVICES
Manufacturer Part Number
LGM40-0401CBA1
Exhaust Size
3/8 in
Max Air Flow
40 cfm

Technical Documents

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CONTROL DEVICES Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CONTROL DEVICES Unloader Valve Mark 4 is a piloted unloader valve for air compressors, featuring a 1/2 in outlet size and 3/8 in exhaust size. It is constructed from forged brass and has a maximum air flow of 40 cfm. The manufacturer part number is LGM40-0401CBA1.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the CONTROL DEVICES Unloader Valve Mark 4 used for?

The CONTROL DEVICES Unloader Valve Mark 4 is a piloted unloader valve designed for air compressors. It releases trapped air between the compressor pump and check valve, allowing the motor to start unloaded. Common in industrial compressed air systems, it helps reduce startup torque and extends equipment life.

What are the specifications of the CONTROL DEVICES Unloader Valve Mark 4?

The CONTROL DEVICES Unloader Valve Mark 4 (MPN LGM40-0401CBA1) has a 1/2 in outlet size, 3/8 in exhaust size, and a maximum air flow of 40 cfm. It is constructed from forged brass for durability. This piloted unloader valve is suitable for air compressor applications requiring reliable pressure relief.

Where to buy the CONTROL DEVICES Unloader Valve Mark 4 worldwide?

You can source the CONTROL DEVICES Unloader Valve Mark 4 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide competitive pricing and reliable sourcing for this piloted unloader valve.

How to install the CONTROL DEVICES Unloader Valve Mark 4?

Install the CONTROL DEVICES Unloader Valve Mark 4 by connecting the 1/2 in outlet to the compressor discharge line and the 3/8 in exhaust to atmosphere. Ensure the valve is oriented per manufacturer guidelines. Use thread sealant on connections and test for leaks. For specific torque values, consult the compressor manual.

Used in

Common applications for CONTROL DEVICES
Compressed air systems — CONTROL DEVICES soft seat safety valves (SB75-0A150) for overpressure protection on air receivers
Regenerative blower installations — CONTROL DEVICES pressure and vacuum relief valves (NBR20-0T017) for blower protection
Engine-driven compressor packages — CONTROL DEVICES throttle controls (TC63-4KA000) for pneumatic speed regulation
Industrial pneumatic networks — CONTROL DEVICES hard seat safety valves (SN50-1A100) for high-temperature relief applications
Compressor tank maintenance — CONTROL DEVICES in-tank check valves (P3850-1EP) for backflow prevention
Instrument air systems — CONTROL DEVICES in-line check valves (M2525-1WA) for directional flow control

CONTROL DEVICES Products

3G Electric supplies CONTROL DEVICES piloted unloader valves for air compressors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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