1092049977: MINIMUM PRESSURE VALVE

As an authorized distributor of Atlas Copco parts, we offer the Genuine Atlas Copco 1092049977 minimum pressure valve. We source this component directly from Atlas Copco (Shanghai) Trading Co., Ltd. , guaranteeing that you receive a 100% genuine, new, and original part for your air compressor system.

Product Introduction

The Minimum Pressure Valve (MPV) is a critical component in screw air compressors. Its primary function is to maintain a minimum level of pressure within the air-oil separator tank during startup and unloading operations.

According to industry technical resources, the MPV ensures that the system pressure does not drop below a preset threshold (typically around 0.45 MPa / 4.5 Bar). This action guarantees proper lubrication oil circulation by utilizing the system’s natural pressure differential. Furthermore, this valve includes an independent check valve function; immediately upon compressor shutdown or unloading, it blocks the reverse flow of compressed air from the air receiver back into the compressor, preventing the oil system from flooding and the screw elements from reversing.

Technical Specifications

The following technical data corresponds to the specific genuine part 1092049977 sourced directly from Atlas Copco (Shanghai) Trading Co., Ltd.

• Part Name: Minimum Pressure Valve
• Part Number: 1092049977
• Origin: China
• Tariff Code: 84818099
• Width: 344 mm
• Height: 106 mm
• Length: 192 mm
• Weight: 6989 grams (Approx. 6.99 kg)

Product Advantages

Genuine Quality Assurance
We purchase this valve strictly from Atlas Copco (Shanghai) Trading Co., Ltd. , which holds ISO 9001:2015 certification for quality management. This guarantees metallurgical integrity and precise machining tolerances that generic parts cannot match.

Enhanced Component Longevity
The internal spring mechanisms undergo a pre-load treatment process, ensuring stable opening pressure over thousands of cycles. By accurately maintaining the oil-air separator pressure, this valve prevents the high differential pressure that typically ruptures separator filters. Maintenance of the valve reliably extends up to 8,000 hours under standard conditions.

Energy Efficiency & System Protection
The optimized valve cavity design allows for a large flow area while minimizing pressure loss. In a rotary screw compressor, the minimum pressure valve stops the compressor from unloading entirely to zero pressure, keeping the oil circuit pressurized. This action saves energy during idle periods and ensures immediate lubrication upon loading, reducing wear on the airend.

Customer Reviews (Verified Purchasers)

★★★★★
“A perfect fit for our GA series compressor. The valve arrived in original Atlas Copco packaging with sealed documentation. Our system pressure stabilized immediately. Highly recommend this supplier!”

— Mining Operations Manager, South Africa

★★★★★
“We ordered this Minimum Pressure Valve (1092049977) to fix an oil blowback issue. Installation was straightforward. Three weeks of heavy usage and zero pressure drops. Genuine part delivered fast from China.”

— Maintenance Engineer, Thailand

★★★★★
“You can immediately feel the quality difference compared to our old valve. The sealing is tight, and the check valve works perfectly—no more reverse flow noise when unloading. Excellent service from ACD.”

— Facility Manager, Germany

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