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Control Valve • Industrial Flow Control

3 way Pneumatic Diaphragm Control Valve for Mixing/Diverting Duty

Control Valve

3 way Pneumatic Diaphragm Control Valve for Mixing/Diverting Duty

Allied Engineering presents the 3 Way Control Valve, a sturdy and compact valve designed to accurately control various types of media, including water, oils, steam, and other industrial fluids. This Pneumatic Diaphragm Control valve package is perfectly suited to address the space limitations commonly found in the OEM industry. The 3 Way Control Valve is known for its durability, reliability, and ease of selection. Its internal valve trims are manufactured and designed using high-quality materials like SS 304/SS 316, ensuring a long service life and minimizing maintenance costs.

Our versatile 3 Way Control Valve can be utilized for both conversion and diversion applications. Rest assured, Amtech Three Way Control valves consistently meet the EN and ASME standards. The 3 way Diaphragm Control valve can be operated pneumatically using a diaphragm or with an electric actuator, and we also offer position controllers for added convenience.

Size Range 25 DN 150 DN (1″ TO 6″)
Pressure Rating 150#/300#/PN 16
Design Standard GENERALLY CONFORMING TO IS 10189 (PART-1)
Testing Standard GENERALLY CONFORMING IS 10189 –PART -1 /ANSI B 16.104/FCI 70-2

Technical Specifications & Metallurgy

Certified Standards
CONTROL VALVE CAST STEEL 3-WAY PNEUMATIC, DIAPHRAGM OPERATED, BOLTED BONNET FOR MIXING /DIVERTING, ASA 150# & 300#
BODYASTM A 216 GR WCB /SS 304/SS 316
TRIMSAISI 410 /304/ 316
DIAPHRAMREINFORCED RUBBER HEAVY DUTY
MFG STDGENERALLY CONFORMING TO IS 10189 (PART-1)
INSP TEST STDGENERALLY CONFORMING IS 10189 –PART -1 /ANSI B 16.104/FCI 70-2
PRESSURE RATING150#/300#/PN 16
ENDSFLANGED TO0 ANSI B 16.5 RF (150#)/300#) FLANGED TO DIN 2543 FLANGED TO BS TO TABLE “F”
HYD TEST PRESSBODY:425 PSIG (30 KG /CM2) FOR 150# TABLE “F” BODY;1100 PSIG (799 KG /CM2) FOR 300# BODY: 32 KG /CM2 ( FOR PN 16)
ACCESSORIESThe valve can be supplied with our without Manual Hand wheel mounting.Optional accessories like Positioner/ Limit Switch/ Motion Transmitter/ Volume Booster/ Air lock Relay and any optional accessories can be supplied with the a valve as per customer request
SIZE RANGE25 DN 150 DN (1″ TO 6″)

What is a 3 Way Pneumatic Diaphragm Control Valve?

A 3 Way Pneumatic Diaphragm Control Valve is a compact, bolted bonnet control valve designed to accurately control water, oils, steam, and other industrial fluids for mixing or diverting duty. Built in ASTM A216 WCB, SS 304, or SS 316 with high-quality internal trims, it’s engineered to address space limitations common in OEM applications. Manufactured generally conforming to IS 10189 (Part-1). Explore our Control Valve range.

Key Features of 3 Way Pneumatic Diaphragm Control Valve

  • 3-way design suited for mixing (conversion) and diverting applications
  • Body: ASTM A216 Gr. WCB, SS 304, or SS 316
  • Trims: AISI 410, 304, or 316
  • Diaphragm: Reinforced rubber, heavy-duty construction
  • Manufactured to IS 10189 (Part-1); inspected to ANSI B16.104/FCI 70-2
  • End connection: Flanged to ANSI B16.5 RF (150#/300#), DIN 2543, or BS Table “F”
  • Pressure rating: 150#, 300#, PN 16
  • Size range: 25 DN to 150 DN (1″ to 6″)

Applications of 3 Way Pneumatic Diaphragm Control Valve

Well-suited for OEM and process industry applications requiring precise mixing or diverting control of water, oil, steam, and other industrial fluids, particularly where space constraints demand a compact valve package.

Benefits of 3 Way Pneumatic Diaphragm Control Valve

  • Handles both mixing and diverting duty in a single valve
  • Compact package addresses space limitations in OEM systems
  • High-quality SS 304/316 trims ensure long service life and low maintenance
  • Meets EN and ASME standards for reliable international compliance
  • Pneumatic diaphragm or electric actuator operation adds flexibility

Working of 3 Way Pneumatic Diaphragm Control Valve

Process fluid enters the valve body and is directed through one of two paths depending on the position of the internal plug, driven by the pneumatic diaphragm actuator. Air pressure applied to the diaphragm moves the actuator stem, repositioning the plug to either mix two incoming streams into one outlet or divert a single incoming stream to one of two outlets. A positioner can be added for precise, proportional control based on an external signal.

Why Choose Allied Engineering?

Allied Engineering manufactures 3 Way Pneumatic Diaphragm Control Valves using high-quality SS 304/316 trims, ensuring durability and minimal maintenance. With EN and ASME compliance, flexible actuation options, and years of industry experience, we deliver valves built for dependable, precise process control.

Explore our Control Valve range, or Get a Quote today.

Custom Engineering & Sizing

Need a Custom Port, High-Temp Trim, or Third-Party Inspection?

Our technical valve engineers provide 3D CAD drawings, material test certificates (EN 10204 3.1), and rapid fabrication quotes for project requirements.

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