Y-Strainer: Essential Filtration Solution for Industrial Piping Systems

An indispensable device in medium transmission pipelines, the Y-Strainer is typically installed upstream of safety valves, pressure reducing valves, pressure relief valves, steam traps, constant water level valves, globe valves, and other equipment. Composed of a cylinder, stainless steel filter screen, sewage discharge component, transmission device, and electrical control system, it delivers reliable impurity removal with minimal maintenance. After the medium passes through the filter basket, contaminants are trapped. When cleaning is required after prolonged use, simply remove the detachable filter basket, clean it and the screen, then reinstall—making operation and maintenance extremely convenient.

How Does a Y-Strainer Work?

The Y-Strainer is commonly mounted at the inlet of pressure reducing valves, pressure relief valves, globe valves (e.g., the water inlet of indoor heating pipelines), or other equipment. Its core function is to remove impurities from the medium, protecting valves and equipment from damage and ensuring stable operation.

Key operational advantages:

• Advanced structural design with low flow resistance

• Easy sewage discharge without disrupting the entire system

• Robust filter basket (cylindrical shape) for enhanced durability compared to single-layer screens

• Removable flange cover at the Y-shaped connection for convenient periodic cleaning of accumulated debris

Y-Strainer Selection Guide

To ensure optimal performance, consider the following key factors when selecting a Y-Strainer:

1. Inlet/Outlet Diameter

• Principle: The diameter should not be smaller than the inlet diameter of the matching pump.

• Recommendation: Typically matches the diameter of the connected pipeline for seamless integration.

2. Nominal Pressure

• Determine the pressure rating based on the maximum possible pressure in the filtration pipeline to avoid leakage or structural failure.

3. Mesh Size

• Select based on the particle size of impurities to be intercepted, aligned with the medium's process requirements.

• Refer to the "Filter Screen Specifications" table (to be added) for particle size compatibility with different mesh counts.

4. Material

• Default: Choose the same material as the connected process pipeline for corrosion resistance and compatibility.

• Options: Cast iron, carbon steel, low-alloy steel, or stainless steel (for harsh operating conditions).

5. Pressure Drop Calculation

• For water applications, the pressure drop ranges from 0.52 to 1.2 kPa under rated flow rates (standard calculation conditions).

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Applications of Y-Strainers

As a high-efficiency filtration device in purification engineering, the Y-Strainer plays a crucial role in treating domestic sewage and industrial wastewater. Its outstanding design and performance advantages have made it a preferred choice across industries:

• Efficiently processes large volumes of domestic and industrial wastewater, enabling valuable water recycling and conservation.

• Core advantages in operation:

• Fully automatic operation (no manual intervention required)

• Maintenance-free design

• Large filtration area and high screen efficiency

• Long service life (especially stainless steel models)

• Customizable filtration precision

• Comprehensive product specifications

• One of the most effective devices for reclaimed water reuse projects (outperforming many other filtration systems).

• Ensures treated water meets national discharge standards while enabling sustainable recycling—reducing water waste and operational costs.