L20 Pressure Lock Valve

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L20 (UCM – A3) PRESSURE LOCK VALVE The L20 Pressure Lock Valve is a solenoid operated check valve designed for hydraulic elevators and includes a self-closing manual lowering valve. Its purpose is....

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Product Details

L20 (UCM – A3) PRESSURE LOCK VALVE

The L20 Pressure Lock Valve is a solenoid operated check valve designed for hydraulic elevators and includes a self-closing manual lowering valve. Its purpose is to allow free flow of oil from the pump unit to the cylinder for upward travel and to prevent flow in the reverse direction from the cylinder to pump until an electrical signal is given to its solenoid.

The L20 is to be directly mounted on a Blain EV ¾” valve at the cylinder port without the need of any adapters. It can be either used as a standalone safety valve by docking on an existing Blain EV valve with separate tank line (for modernizing old installations) or can be used as an integrated safety valve together with Blain’s EVL valve without the need of separate tank connection.

Installed in the main cylinder line directly integrated with the main elevator control valve, the L20 can be employed as a safety back up valve to the down system of the main control valve to prevent unwanted down movement of the elevator should an electrical or mechanical malfunction occur in the main control valve (UCM case).

A Slack Rope Valve LK for roped elevators (e.g. 2:1 indirect transmission) is optional. It prevents the slack rope condition caused by the lowering of the ram when the car is suspended in the safeties or resting on the buffers.

Company Details

Hydraulics & Lifting Aids was incorporated in Visakhapatnam, Andhra Pradesh on January 19th, 1990. At that time, our primary focus was to provide the industrial market with hydraulic hose assemblies, lifting tackles and slings.
Over time, our product offering has expanded and diversified into:
Assembly of hydraulic as well as composite hoses
Manufacturing hydraulic cylinders
Customized design and assembly of hydraulic power packs
Manufacturing of specialized systems and solutions using hydraulics
Providing a wide range of hydraulic spares, material handling and aerial access equipment
From 2012, we commenced manufacturing and installing custom made hydraulic lifts for homes, offices and warehouses under the brand HLA Hydraulic Lifts.
Since inception, our commitment has been to provide our customers with the optimum solution by offering quality products and services. Our in-house knowledge in the field of hydraulics coupled with over 2 decades of experience has enabled us to reach and eliminate the root of the problem and minimize machine and system downtime. What started off as a solely trading firm, has now developed into a manufacturing as well as a service enterprise and we believe in constant and continuous improvement through the incorporation of new technologies and procedures. Dedication to quality, constant learning and a strong code of ethics are the basic principles which have been instrumental in the growth of Hydraulics & Lifting Aids.
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