The ECKARDT SD20 is a heavy-duty industrial pneumatic control valve engineered for precise throttling and shut-off control in demanding process environments. It utilizes a robust pneumatic diaphragm actuator that converts air pressure signals into accurate stem positioning, ensuring stable regulation of flow, pressure, and temperature loops without electrical actuation.
ECKARDT SD20 Technical Specifications
| Valve Type | Pneumatic Control Valve (Globe / Single-Seat) |
| Actuation | Pneumatic Diaphragm Actuator (Spring-return) |
| Control Signal | 3–15 psi / 0.2–1.0 bar (standard) |
| Body Material | Cast Iron / Carbon Steel / Stainless Steel |
| Nominal Size | DN15 – DN100 (1/2″ – 4″) |
| Pressure Rating | PN16 / PN40 / ANSI Class 150–300 |
| Trim Characteristics | Equal Percentage / Linear / Quick Opening |
| Temperature Range | -10°C to +350°C (depending on packing) |
| Leakage Class | ANSI/FCI 70-2 Class IV / VI |
| Mounting | Flanged / Threaded / Welded ends |
Key Engineering Features
- Pneumatic diaphragm actuator with multi-spring configuration for precise positioning
- Field-reversible action (air-to-open / air-to-close) without additional parts
- Heavy-duty bonnet and guided plug for high cycle life and minimal vibration
- Interchangeable trim sets for optimized flow capacity (Cv/Kvs)
- Compatible with standard positioners and pneumatic accessories
- Robust stem sealing with PTFE or graphite packing for diverse media
Industrial Applications
- Chemical and petrochemical process control loops
- Steam, water, and thermal fluid regulation
- Power generation and district heating systems
- Food, pharmaceutical, and sanitary process lines
- General industrial fluid handling and pressure reduction
For technical inquiries, dimensional drawings, or replacement support for ECKARDT SD20, contact the Pro-Hydraulic engineering team.
PRODUCT IMAGES
ECKARDT SD20 Pneumatic Control 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 ECKARDT SD20 Pneumatic Control Valve. This precision-engineered industrial component delivers reliable performance and tight fluid control for heavy-duty systems.