U Type Diaphragm Valve – Stainless Steel Manual Diaphragm Valve
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U Type Diaphragm Valve – Stainless Steel Manual Diaphragm Valve

Manufacturer: Neza Engineering Co.

Technical Specifications – U Type Diaphragm Valve

ParameterSpecification
Product NameU Type Diaphragm Valve
Body MaterialSS 304 / SS 316 / SS 316L
Size Range (OD)½” to 4″
End ConnectionTC End / Butt Weld / Flanged / SMS / RJT
Valve Body DesignU-Shaped, 2-Way Manual Type
Diaphragm MaterialEPDM / PTFE / Silicone / Viton
OperationManual (Handwheel Operated)
Surface FinishMirror / Matt / Electro Polish (Internal Ra < 0.6 μm)
Working PressureUp to 10 bar
Working Temperature-10°C to 130°C
StandardsDIN / SMS / ISO / 3A / ASME
Hygienic DesignCIP/SIP Compatible, Dead-leg Free
Mounting TypeInline Horizontal / Vertical
Leakage ClassBubble Tight, Class VI
ManufacturerNeza Engineering Co.

Product Overview

The U Type Diaphragm Valve is a high-performance manual valve used for regulating or completely stopping the flow of fluids in hygienic process systems. Designed with a distinctive U-shaped body, this valve allows unobstructed flow, minimum turbulence, and easy drainability, making it ideal for clean and sterile environments.

Manufactured in compliance with international sanitary standards like 3A, DIN, and ASME BPE, it is widely used in industries where purity, cleanliness, and precision flow control are non-negotiable – such as pharmaceutical, biotech, dairy, beverage, and food processing.

Key Features

1. Hygienic U-Shaped Design

The U-shape ensures minimal pressure drop and promotes complete draining, reducing dead legs. It is suitable for high-purity applications and prevents fluid retention, which is critical in sterile systems.

2. Superior Diaphragm Quality

Equipped with FDA-approved EPDM, PTFE, Silicone, or Viton diaphragms, which provide chemical resistance, thermal durability, and leak-proof performance. Diaphragms are easily replaceable, reducing downtime.

3. Manual Flow Control

The integrated handwheel mechanism allows precise flow control or shut-off. The rising stem and bonnet assembly keep the fluid path isolated from the external environment.

4. Zero Dead Space

Internal geometry is crafted to be crevice-free, eliminating the chances of contamination. This ensures easy CIP/SIP cleaning, supporting continuous operations in sterile environments.

5. Custom End Connections

Available with TC ends, weldable ends, flange joints, or union threads, the valve can be integrated seamlessly into existing or new piping systems.

Applications of U Type Diaphragm Valve

  • Pharmaceutical Manufacturing Plants – For API handling, CIP/SIP lines, WFI loops

  • Biotech & Fermentation Units – In bioreactors, transfer lines, and cleaning systems

  • Dairy & Beverage Plants – Milk, cream, syrup, and juice lines requiring cleanability

  • Food Processing Units – In sauces, purees, and semi-solid material transfer

  • Cosmetics & Personal Care – High-viscosity creams, lotions, and gel handling

  • Chemical & RO Systems – When chemical resistance and no-contamination are critical

Types of U Type Diaphragm Valves Offered

  1. Manual U Type Diaphragm Valve

    • Operated by handwheel, suitable for most process controls.

  2. Pneumatic U Type Diaphragm Valve (Available on request)

    • Air-operated for remote control and automation.

  3. Zero Dead-Leg U Diaphragm Valve

    • For biotech and sterile systems with advanced CIP/SIP compatibility.

  4. Tank Bottom Diaphragm Valve

    • Mounted at the base of process vessels for drain operations.

Advantages of U Type Diaphragm Valve by Neza Engineering Co.

  • ✅ Manufactured using high-purity SS 316L / 304 materials

  • ✅ Electropolished surface to meet hygienic and pharma-grade standards

  • ✅ Replaceable diaphragm with fast bonnet disassembly

  • ✅ Low-pressure drop and linear flow characteristics

  • ✅ Designed to eliminate bacterial growth risks

  • ✅ Ideal for viscous, corrosive, or sensitive media

  • ✅ Long operational life with minimal maintenance

Maintenance & Operation Tips

  • Regularly inspect the diaphragm for signs of fatigue or swelling.

  • Follow manufacturer guidelines during diaphragm replacement.

  • Use proper torque when reassembling the bonnet after servicing.

  • Choose diaphragm materials based on media compatibility and temperature.

  • Always clean the valve before product changeovers to maintain hygiene.

Customization Available

Neza Engineering Co. can design and manufacture customized U-type diaphragm valves based on your line size, connection standards (DIN, SMS, ISO), internal roughness, and diaphragm material requirements. Valves are available with tagging, heat codes, and test reports.

Why Choose Neza Engineering Co.?

  • ISO-certified manufacturing facilities

  • Strict QC standards for each batch of valves

  • Competitive pricing without compromise on quality

  • Rapid turnaround for custom orders

  • End-to-end support for installation and after-sales

  • Trusted by pharma machinery OEMs and food plants globally

Order Now or Request a Quote

To order your U Type Diaphragm Valve or to get a custom quote:

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