1 1/2" Sanitary Zero Dead Leg Manual Diaphragm Valve

Sanitary Diaphragm Valves for High-Purity Process Piping Applications

• 3A Manual Diaphragm Valves
• 316L Stainless Steel for Fluid Contact
• Working Pressure 10 Bar
• EPDM Sealing: -20℃ ~ 135℃ (150℃ Max 20min)
• VMQ Sealing Optional

The Sanitary Zero Dead Leg Manual Diaphragm Valve is 1 1/2 inches and is ideal for ensuring that there are no residues of fluids. It has a zero dead leg feature that guarantees completely hygienic fluid pathways. The fluid contact surfaces are manufactured with 316L stainless steel and have a smooth finish meaning that there are no chances for contamination. The valve is operated using a manual handle giving the user control over the flow of the fluid it processes.

Product Overview

Eagle 3A Manual Diaphragm Valves are specially designed for providing total isolation in processing applications. The valve body is manufactured from engineer-proven 316L stainless steel on all its fluid contact surfaces and ensures outstanding resistance to corrosion, as well as full traceability of materials. The presence of a strong manual handwheel makes it possible to act on a valve plug in a controlled way creating the zero-leak seal that protects the liquid processed both from the surrounding environment and the operating system of the valve. This design meets the most stringent requirements for aseptic processes in the biopharmaceutical, food- and beverage, and high-purity chemical industries.

Technical Specifications

• Size Range: 1/2" to 2" (1 1/2" featured)
• Body Material (Fluid Contact): 316L Stainless Steel
• Working Pressure: 10 Bar (145 PSI)
• EPDM Sealing Temperature: -20℃ to 135℃ (150℃ Max for 20 minutes)
• Optional Sealing: VMQ (Silicone)
• Certification: 3A Sanitary Standard, ASME BPE Compliant
• Connection Type: Tri-Clamp (Bevel Seat)
• Operation: Manual Handwheel

Key Advantages of Our Sanitary Diaphragm Valve

Dimensions

Component Breakdown

Installation

For optimal drainability and to maintain the self-draining function of the zero dead leg design, install the valve with a minimum inclination angle as shown. This ensures complete fluid drainage during CIP cycles and prevents any residue accumulation.

Applications & Industries

Frequently Asked Questions

What are the two types of diaphragm valves?

There are two main types of diaphragm valves, the weir type and the straight through (full-bore) type. The weir type has a raised lip against which the diaphragm seals, rendering it useful for clean fluids and high-purity applications and for processes that use frequent cleaning-in-place (CIP) or sterilization-in-place (SIP) cycles. The straight through valve has a flat base that allows thick liquids, slurries, and liquids with solids to flow through without creating a blockage. During sanitary processing, the weir-type valve remains the standard for aseptic and sterile processing, because of its compact and crevice-free configuration, which permits easy cleaning and draining.

What is the function of a diaphragm valve?

The main purpose of a diaphragm valve is to achieve complete shut-off and accurate flow control while isolating the working fluid from the valve operating mechanism. A diaphragm will be pressed onto a weir or a valve seat by a compressor (which may be operated manually or automatically). This action forms a leak-proof closure preventing the working fluid from coming into contact with the valve stem, bonnet or surrounding environment.

What is the purpose of the manual valve?

A manual valve is actuated manually, usually through the use of a valve wheel or lever instead of by a power source such as compressed air or electrical energy. For sanitary processing applications, manual diaphragm valves are typically utilized due to their simplicity, reliability, and affordability. They are excellent choices for applications where no automation is required, including infrequent isolation, sampling points, low-volume production, or situations where installing control wires is not feasible. The operator gets instant feedback and is able to change the flow rate easily without the assistance of complicated automation.

Can a valve actuator be manual?

To answer the question, we can say that the manual handwheel or lever is the simplest type of valve actuator. In a manual diaphragm valve, the handwheel turns a screw stem, which moves the diaphragm in both directions. It is a form of actuation because it enables a person to convert the motion of their hands from that of the operator into the necessary linear motion for sealing or opening the valve. Although the word "actuator" is usually associated with pneumatically or electrically operated mechanisms in process automation, the manual handwheel operates according to the same principle as all other actuators; it also provides actuation for the mechanism of opening and locking the valve.

Why Choose Eagle Valves

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