Dual Let Down Valves

Compact valve for venting and reducing pressure fast

This unique design configuration combines the Let Down and Vent Valve, allowing for a very compact and efficient valve package. The dual valve design reduces the length of “dead leg” gas to an absolute minimum, greatly reducing related problems such as gas degradation in that area.

The Let Down body mounts directly to an Autoclave Reactor discharge or it can be spooled to the Tubular line. Each of the mounting methods provide equally superb performance.

Each of the two valves is equipped with Bafco Inc.™ Electrohydraulic Actuators, insuring quick opening of the Vent and precise stem position on the Let-Down Valve.

A complete hydraulic power unit is available along with field manifolds to insure long and dependable service.

Standard material for pressure-containing components such as body and inlet adapter is 4340 alloy steel forged to the special McCartney specification #43-72. This superior 4340 material has provided long and dependable service with exceptional resistance to fatigue failure for nearly 30 years. Each customer’s specific needs are considered in the valve trim design, including geometry and materials. Special attention is given to potential corrosion and erosion problems in the trim area. Each of the two valves can be configured to meet a customer’s specific process, mechanical, and material requirements.

All McCartney valves can be custom designed for pressures up to 60,000 PSIG (4138 Bar).