Product Overview
The SPIRAX SARCO QL33D DN50 is a pneumatically actuated angle seat valve engineered for precise on/off control of process media in industrial fluid handling systems. Manufactured by Spirax Sarco, a globally recognized authority in steam and fluid control technology, this valve utilizes a robust piston-type pneumatic actuator coupled to an inclined seat body design. The angled configuration promotes high flow rates with minimal pressure drop and ensures effective drainage of the valve body, making it particularly suitable for viscous fluids, steam, and aggressive media. The QL33D series is designed for reliability in demanding process environments, offering rapid response times and long service life.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pneumatic Angle Seat Valve (Process & Pneumatic Valve) |
| Model Designation | QL33D DN50 |
| Nominal Diameter | DN50 (2″) |
| Operating Pressure | Standard Industrial Grade (Up to 16 bar, depending on media and temperature) |
| Actuation Type | Pneumatic Piston Actuator (Double-acting or Spring-return options) |
| Mounting & Connection | Flanged or Threaded connections per ISO / DIN / ANSI standards |
| Body Material | Stainless Steel or Bronze (dependent on variant) |
| Seal Material | PTFE / EPDM / FKM (media compatibility dependent) |
Engineering Features & Advantages
- Optimized Flow Geometry: The angle seat design provides a straight-through flow path with minimal turbulence and pressure loss, ensuring high flow capacity and efficient media handling.
- Robust Pneumatic Actuation: The piston actuator delivers fast, reliable stroking with high cycle life, suitable for automated process control loops and demanding duty cycles.
- Superior Sealing Performance: Precision-machined seat and plug assembly with high-quality seals ensures tight shut-off and long-term leak-free operation.
- Self-Draining Design: The inclined seat orientation facilitates complete drainage of the valve body, reducing contamination risks and simplifying cleaning procedures.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, including high temperatures, aggressive media, and frequent cycling.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, ensuring drop-in installation without modification.
Typical Industrial Applications
The SPIRAX SARCO QL33D DN50 pneumatic angle seat valve is widely deployed in heavy industrial scenarios requiring precise and reliable fluid control. Common applications include steam distribution and condensate management in process plants, chemical dosing and transfer systems, water treatment and filtration circuits, food and beverage processing lines, and auxiliary service lines in plastic injection molding machines, metallurgical presses, and CNC machine tools. Its
PRODUCT IMAGES
SPIRAX SARCO QL33D DN50 Pneumatic Angle Seat Valve
âš¡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine SPIRAX SARCO QL33D DN50 Pneumatic Angle Seat Valve. This UK-made DN50 valve features a robust piston actuator, delivering leak-free, reliable fluid control for heavy-duty industrial systems.