GB Y-Strainers

Product Core Parameters

Manufactured by Bolaisi, the GB Y-Strainers (Model: GL41W-16P) are fully forged of stainless steel with flange connection for easy installation. As universal filtering equipment for industrial pipeline systems, it meets the filtration demands of medium conveying under multiple working conditions, featuring stable overall performance and long service life.

Product Overview

GB Y-Strainers are essential core filtering devices in fluid conveying pipeline systems. The Bolaisi GL41W-16P GB Y-Strainer is commonly installed at the front inlet of key pipeline equipment such as pressure reducing valves, relief valves, constant water level valves and other control valves.

Adopting mature and optimized structural design, it boasts low flow resistance, excellent sealing performance, convenient disassembly & sewage discharge and stable operation. Internal filter screens are available in customized specifications to meet diverse filtration standards: 18~30 mesh for water filtration, 10~100 mesh for gas filtration, and 100~480 mesh high-precision screens for oil filtration. A full range of specifications fully satisfies purification requirements across industries, effectively protecting downstream valves and the entire pipeline system for long-term stable operation.

Main Applications

1. Pre-protection for Precision Equipment

Installed at the front end of precision fluid equipment including water pumps, pressure reducing valves, hydraulic control valves and testing instruments, it efficiently intercepts solid particle impurities. It prevents component abrasion, valve jamming, pipeline blockage and other faults, greatly extending the service life of overall equipment and reducing operation & replacement costs.

2. Purification of Multiple Media

Effectively filters out sediment, rust and impurities in water, suspended particles in oil products, and dust & debris in gas media. It continuously purifies pipeline fluids to avoid secondary contamination, ensure medium cleanliness and meet basic production and conveying standards.

3. Stable Operation of Pipe Network Systems

It avoids abnormal working conditions caused by impurity accumulation, such as pressure drop fluctuation and flow imbalance. It stabilizes pipe network pressure and production process parameters, and improves the operational safety and working stability of the entire pipeline system.

4. Wide Cross-industry Application

With strong universal compatibility, this product is widely used in pipeline systems of water supply & drainage, HVAC, fire protection, petrochemical, electric power & metallurgy, gas transmission, light industry and other fields, serving as a general supporting filtering device for industrial and civil pipelines.

Working Principle

Bolaisi stainless steel GB Y-Strainers operate on the physical sieving and filtration principle, realizing continuous filtering through an automatic self-supporting structure with simple operation and easy maintenance.

Impurity Filtration Process

Medium flows unidirectionally into the Y-shaped cavity and passes through the inclined stainless steel filter screen at a steady speed. Solid impurities larger than the mesh aperture are trapped inside the screen via graded sieving, while clean medium penetrates the screen and is delivered to downstream pipelines to complete the filtration process.

Sewage Discharge & Maintenance Process

As impurities accumulate on the filter screen and gradually raise pipeline pressure drop, close the upstream and downstream control valves, then open the bottom valve cover or drain plug. The filter screen can be taken out for high-pressure cleaning, maintenance or direct replacement. After reset and installation, the strainer can be put back into continuous operation, ensuring time-saving and efficient inspection and maintenance.