49816283C Pilot Check Calve Unloader

The Ratiekc 49816283C Pilot Unloader Check Valve is a dedicated replacement part built for gas-powered air compressors that need reliable pressure regulation. Combining an in-line unloader check valve with a built-in relief valve, it manages airflow and tank pressure without requiring multiple separate fittings. It serves as a direct swap for equipment owners dealing with worn or malfunctioning stock valves.

Machined from high-strength brass, the valve offers natural resistance to heat, wear, and aging during heavy operation. It is built to match original equipment dimensions and functionality. The component comes factory calibrated with an on and off operating range of 145 to 175 PSI, allowing your compressor system to cycle properly under standard working loads.

Port connections are standard for compatible setups, featuring a 5/8-inch inverted flare inlet, a 1/2-inch female NPT tank connection, and a 1/8-inch female NPT throttle control valve port. It is compatible with Ingersoll Rand T30 gas-powered models alongside several specific part numbers including 16V886, 16V887, 20Y778, 3FRU2, and 4M310.

Because this valve has fixed port sizes and a pre-set pressure rating of 145-175 PSI, it is not a universal fit for every compressor setup. Buyers must verify that their machine matches the listed part numbers and connection sizes before installation, as mounting hardware and additional adapters are not included in the single-valve package.

Verdict: This brass pilot unloader check valve is a practical, direct-fit replacement for owners maintaining compatible Ingersoll Rand T30 gas air compressors. It provides standard factory pressure settings and durable construction to keep your equipment running smoothly.

• Part Number: 49816283C
• Material: High-strength brass
• Inlet Port: 5/8-inch inverted flare
• Tank Connection: 1/2-inch female NPT
• Throttle Control Port: 1/8-inch female NPT
• Factory Setting: 145-175 PSI (On / Off)
• Included Items: 1x 49816283C check valve
• Product Service: 3 years

A great fit if you:

• Own an Ingersoll Rand T30 gas-powered compressor needing valve maintenance
• Require a valve pre-calibrated for 145-175 PSI operation
• Need a direct match for part numbers like 16V886, 20Y778, or 3FRU2
• Want durable brass construction with an integrated relief valve

Consider something else if you:

• Have an electric air compressor with different connection sizes
• Need custom or adjustable operating pressure thresholds outside 145-175 PSI

What compressor models work with this valve?
It is compatible with Ingersoll Rand T30 gas-powered air compressors and corresponds to part numbers including 16V886, 16V887, 16V890, 16V891, 20Y778, 20Y779, 20Y780, 3FRU2, 3FRU3, 3FRU4, 4M310, 4M361, 6TFH6, 6WA84, and 783RD7.

What are the connection sizes on this unit?
The valve features a 5/8-inch inverted flare inlet, a 1/2-inch female NPT tank connection, and a 1/8-inch female NPT throttle control port.

What is the factory pressure setting?
The valve is pre-set at the factory with an on and off operating range of 145 to 175 PSI.

What material is this valve made from?
It is constructed from high-strength brass designed for wear resistance, heat resistance, and aging resistance.