Straight Through Diaphragm Valve

Corrosion
Resistant

Leak Tight
Sealing

Automated
Operation

Low Maintenance
Long Life

Alis Valves is a trusted Straight Through Diaphragm Valve Manufacturer & Supplier in India, offering high-performance diaphragm valves for handling abrasive, viscous, corrosive, and slurry media. Designed with a straight-through full bore flow path and flexible diaphragm, these valves provide minimal pressure loss, bubble-tight sealing, excellent corrosion resistance, and clog-free operation. They are widely used in mining, chemical processing, wastewater treatment, pulp & paper, pharmaceutical, food & beverage, and industrial process applications.

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Product Specifications and Overview

Size Range

DN15 to DN300 (½" to 12")

Pressure Rating

PN10, PN16 / ANSI Class 150

Body Material

Cast Iron, Ductile Iron, Cast Steel (WCB), SS304, SS316, SS316L

Diaphragm Material

EPDM, PTFE, FKM (Viton), Neoprene, Butyl Rubber

Seat Design

Straight Through

End Connection

Flanged, Threaded, Socket Weld, Butt Weld, Tri-Clamp

Temperature Range

-20°C to +180°C (Depending on Diaphragm Material)

Leakage Standard

Bubble Tight Shut-Off

Design Standards

MSS SP-88, ASME B16.34, ISO 5211

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Industries Served

Cement

Engineered valve solutions tailored for critical Cement operating processes.

Chemical

Engineered valve solutions tailored for critical Chemical operating processes.

Data centres

Engineered valve solutions tailored for critical Data centres operating processes.

Fertilizer

Engineered valve solutions tailored for critical Fertilizer operating processes.

Applications

Ammonia

High-performance flow automation engineered for Ammonia operations.

CO₂

High-performance flow automation engineered for CO₂ operations.

Compressed Air

High-performance flow automation engineered for Compressed Air operations.

Cryogenic

High-performance flow automation engineered for Cryogenic operations.

Frequently Ask Questions

What Is a Straight Through Diaphragm Valve?

A Straight Through Diaphragm Valve is a diaphragm valve with a relatively unobstructed flow passage designed to allow fluids, slurries and suspended solids to pass through the valve with minimal restriction. The diaphragm provides shut-off while separating the process fluid from the valve's operating mechanism.

Why Is Straight Through Design Better for Slurry?

The absence of a pronounced internal weir gives the valve a more open flow passage, reducing the likelihood of solids accumulating around an internal obstruction. This makes it particularly useful for slurry and abrasive services.

What Happens When the Diaphragm Wears Out?

The valve should be isolated from the process, depressurized and serviced according to the manufacturer's maintenance procedure. A worn or damaged diaphragm should be replaced.

What Is the Main Advantage of a Straight Through Diaphragm Valve?

Its biggest advantage is the unobstructed flow passage, which makes it particularly suitable for slurry, abrasive fluids and media containing suspended solids.

Who Is a Straight Through Diaphragm Valve Manufacturer in India?

Alis Valves is a Straight Through Diaphragm Valve manufacturer and supplier in India, offering valve solutions for mining, slurry handling, chemical processing, wastewater, cement, pulp & paper and other demanding industrial applications. The straight-through design is particularly suitable for applications involving abrasive, viscous and solids-containing media.