Description
We supply a comprehensive range of Diaphragm Valves engineered for precision flow control, isolation, and leak-proof sealing in demanding process environments.
Our product range includes Weir Type, Straight-through, Pneumatic Actuated, and Manual Actuated Diaphragm Valves, designed to deliver excellent performance across chemical, pharmaceutical, water treatment, and food industries.
These valves utilize a flexible diaphragm as the sealing element, providing smooth throttling control and complete isolation between the actuator and the process media — ensuring contamination-free operation and extended service life.
Available in various materials such as cast iron, stainless steel, and plastic-lined bodies with elastomeric or PTFE diaphragms, SMP SYSTEMS valves guarantee dependable performance in aggressive fluid applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Size Range | ½” to 12” (custom sizes available) |
| Pressure Rating | PN10 – PN16 / Class 150 |
| Body Material | Cast Iron, Ductile Iron, Stainless Steel, PVC, PP, PVDF, PTFE-lined |
| Diaphragm Material | EPDM, NBR, PTFE, Viton, Natural Rubber |
| Design Types | Weir Type, Straight-through Type |
| Actuation Options | Manual Handwheel, Pneumatic Actuator, Electric Actuator |
| End Connection | Flanged, Threaded, Socket Weld, Union End |
| Flow Characteristics | Linear or On/Off Control |
| Temperature Range | -10°C to +180°C (material-dependent) |
| Leakage Class | Class VI (bubble-tight sealing) |
| Standards & Testing | BS 5156 / EN 13397 / ISO 9001 / API 598 |
Key Features
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Non-contaminating design — ideal for sterile or corrosive applications
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Bubble-tight shutoff with flexible diaphragm sealing
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Smooth flow path minimizing pressure drop
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Resistant to corrosive and abrasive media
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Maintenance-friendly design with minimal moving parts
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Available in manual and pneumatic actuation options
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Suitable for on/off and throttling control
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Compact, leak-proof, and long-lasting operation
Applications
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Chemical and petrochemical industries
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Water and wastewater treatment
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Pharmaceutical and biotech manufacturing
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Food and beverage processing
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Mining and slurry handling
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Pulp and paper industry
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Semiconductor and cleanroom systems
Certifications & Global Compliance
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ISO 9001 – Quality Management System
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API 598 / EN 12266 – Pressure and leakage testing
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CE / PED (Europe) – Pressure Equipment Directive
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FDA / USP Class VI – Food and pharmaceutical compatibility (for PTFE/EPDM diaphragms)
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RoHS / REACH – Environmental and chemical compliance
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CSA (Canada) – Electrical and pneumatic actuator safety (where applicable)
📩 For valve selection guidance, diaphragm material charts, or actuator configuration details, contact: info@smpsuppliers.com
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