PPH Pneumatic Actuated Diaphragm Valve
A PPH Pneumatic Actuated Diaphragm Valve is a type of valve in which the flow of fluid is controlled by a flexible diaphragm that seals against a valve seat, and the valve operation is automated using a pneumatic actuator.The PPH Pneumatic Actuated Diaphragm Valve is a highly durable and corrosion-resistant valve designed for automated flow regulation in aggressive chemical and industrial fluid handling systems. Constructed from Polypropylene Homopolymer (PPH), this valve is fitted with a pneumatic actuator that allows remote or automated operation for opening and closing the valve efficiently.
Its diaphragm-based sealing mechanism prevents the fluid from coming into contact with the actuator, making it ideal for hygienic, high-purity, or corrosive applications such as chemical dosing, water treatment, and process control in various industries.
- Chemical Resistance
- Low Maintenance Requirement
- Low Thermal Conductivity
- Long Service Life
- Easy Installation
- Corrosion Resistance
PPH Pneumatic Actuated Diaphragm Valve Details
*Technical Drawing
*Technical Data
| Parameter | Specification / Detail |
| Material (Body & Diaphragm) | PPH (Polypropylene Homopolymer) for chemical resistance; EPDM/FKM diaphragm depending on fluid compatibility |
| Valve Type | Pneumatic Actuated Diaphragm Valve |
| Operation | Pneumatic actuator (air pressure operated); available in spring return or double acting |
| Connection Types | Socket, flange, or threaded (depending on size and application) |
| Valve Function | On/off control, throttling, or diverting (depending on actuator and configuration) |
| Temperature Range | 0°C to ~95°C (depends on diaphragm material and process conditions) |
| Pressure Rating | Typically PN10–PN16 (10–16 bar), can vary with size and type |
| End Connections | Flanged (DIN, ANSI), Threaded (BSP/NPT), or Socket welded |
| Flow Pattern | Straight-through for two-way valves; Y-pattern for higher flow efficiency in some designs |
| Actuator Air Supply | Standard 4–6 bar (pneumatic supply for operation) |
| Sealing | Elastomer diaphragm provides leak-tight sealing; PTFE or EPDM options for aggressive chemicals |
| Standards | ISO, DIN, ANSI compliance (depending on manufacturer) |
| Applications | Chemical processing, water treatment, pharmaceutical, corrosive fluids handling |
| Features | Corrosion-resistant, lightweight, low maintenance, compact design, automated operation, tight sealing |
- Pneumatic Automation – Enables fast, remote, and reliable valve actuation.
- Excellent Chemical Resistance – PPH body resists acids, alkalis, and corrosive fluids.
- Isolated Flow Path – Diaphragm barrier protects the actuator from media contact.
- Maintenance-Friendly Design – Quick access for diaphragm replacement and servicing.
- High Durability & Non-Corrosive – Ideal for long-term use in harsh environments.
- Low Operating Pressure for Actuation – Reduces energy and air consumption.
- Suitable for Clean Applications – No contamination of fluid due to isolated control.
| Valve Size (DN / Inch) | Pressure Rating (PN / Bar) | Temperature Range (°C) |
| DN 15 – 25 (½” – 1″) | PN 16 (16 bar) | 0 – 95°C |
| DN 32 – 50 (1¼” – 2″) | PN 16 (16 bar) | 0 – 95°C |
| DN 65 – 80 (2½” – 3″) | PN 10 (10 bar) | 0 – 95°C |
| DN 100 – 150 (4″ – 6″) | PN 10 (10 bar) | 0 – 95°C |
| DN 200 – 250 (8″ – 10″) | PN 10 (10 bar) | 0 – 95°C |
Custom Product Manufacturing Available
If you are searching for customized product designs that meet your requirements, don’t worry. Petron Thermoplast also offers custom product manufacturing services to meet the unique needs of various industries. Work with our expert engineers to create custom designs suited for your application.
Benefits of Using PPH Pneumatic Actuated Diaphragm Valve
Chemical Resistance
The PPH body and compatible diaphragms (EPDM/FKM/PTFE) provide excellent resistance to acids, alkalis, and corrosive chemicals.
Automated Control
Pneumatic actuation allows remote or automatic operation, reducing the need for manual intervention.
Leak-tight Performance
The flexible diaphragm ensures a tight seal, preventing leaks and contamination.
Versatile Applications
Suitable for on/off control, throttling, or flow diversion in chemical, pharmaceutical, and water treatment processes.
Durability
Lightweight yet strong, PPH valves offer a long service life even in aggressive environments.
Low Maintenance
Fewer moving parts than other valve types reduce the need for frequent servicing.
Fast Operation
Pneumatic actuation enables quick response, which is critical for process safety and control.
Safety Features
Spring-return actuators provide fail-safe operation, closing or opening the valve automatically in case of air supply loss.
Compact Design
Slim profile saves space in piping systems, making installation easier.
Temperature & Pressure Handling
Handles moderate temperatures (0–95°C) and pressures (PN10–PN16) typical in chemical processes.
Types of PPH Pneumatic Actuated Diaphragm Valve
Weir Type (Standard/Two-way)
- Has a raised diaphragm seat (weir) inside the valve.
- Ideal for on/off control and throttling of liquids.
- Provides good sealing for low-pressure applications.
Straight-Through / Full Bore Type
- Flow passes straight through without obstruction.
- Reduces pressure drop and allows higher flow rates.
- Suitable for slurries or viscous fluids.
Three-Way / Diverting Type
- Can divert flow between two outlets or mix fluids from two inlets.
- Useful in chemical or process systems where flow routing is needed.
Spring Return Pneumatic Actuated Valve
- Valve automatically moves to a fail-safe position (open or closed) if air supply fails.
- Common for safety-critical processes.
Double Acting Pneumatic Actuated Valve
- Air pressure is used for both opening and closing.
- Provides precise control, suitable for automated systems where fail-safe is not critical.
Threaded / Socket Type
- For small diameter piping and light-duty systems.
- Flanged Type – For higher pressure applications, easy installation in chemical plants.
Applications of PPH Pneumatic Actuated Diaphragm Valve
Process Industry
High Purity Applications
Electronic Industry
Electrical Industry
Semi-conductors Industry
Pharmaceutical Industry
Solar power panels
Sugar Industry
Paper & Pulp Industry
Nuclear Power Industry
Automotive Industry
DI water plants
Why Choose Petron Thermoplast?
Petron Thermoplast supplies PPH Pneumatic Actuated Diaphragm Valve and customized parts with excellent quality, export-grade standards, and professional processing to meet diverse needs. The use of advanced technology ensures that the PPH Pneumatic Actuated Diaphragm Valve surface is smooth and flawless, without pores, and has a delicate touch, perfectly presenting the unique charm of high-quality PPH Pneumatic Actuated Diaphragm Valve and parts. PPH Pneumatic Actuated Diaphragm Valve undergo rigorous performance tests to ensure that strength, weather resistance and other indicators meet standards, providing customers with reliable and durable PPH Pneumatic Actuated Diaphragm Valve and parts.
With a wide variety of products and sufficient inventory, we can quickly respond to customer needs and meet purchasing needs in one stop.
