
TC018 Four-Piston Diaphragm Pump
TC Series four-piston diaphragm pump for sanitary and biopharmaceutical applications
Overview
The TC018 Four-Piston Diaphragm Pump is designed for sanitary fluid transfer applications requiring stable flow, low pulsation, and low shear, with a hygienic design supporting effective cleaning. It is well suited for laboratory systems, analytical instruments, and other hygienic process environments where precise flow control, product purity, and cleanability are critical.
With a flow range of 0.005–0.3 L/min and a maximum operating pressure of 10 bar, the TC018 provides precise and consistent pumping performance in compact sanitary systems. Its wetted materials are selected for hygienic compatibility, and the pump structure is designed to support clean operation, simple maintenance, and reliable long-term use.
The TC018 can be configured either as an integrated TC-S smart pump system for laboratory and process development use, or as a pump head for integration into externally controlled process systems. This allows the same pump model to be used across standalone laboratory applications as well as OEM or system-level integration.
Key Technical Advantages
- Gentle, low-shear transfer suitable for sensitive biologics and aqueous solutions
- Very low pulsation characteristics supporting stable flow conditions
- PTFE diaphragm providing excellent chemical resistance and hygienic performance
- Pump head capable of withstanding up to 10 bar instantaneous pressure shock
- Ball-driven transmission design supporting efficient torque transfer and stable operation
- Linear speed-flow relationship enabling predictable and precise flow control
- Self-priming capability supporting flexible system integration
- Hygienic design suitable for CIP and SIP processes
Typical Applications
The TC018 is suitable for precision sanitary and bioprocess applications, including:
- Precision biopharmaceutical fluid transfer
- Buffer dosing and media preparation
- Chromatography small-flow systems
- Laboratory-scale filtration processes
- Analytical instruments and OEM equipment integration
- Shear-sensitive aqueous solution transfer
Technical Specifications
| Model | TC018-S |
| Pump Type | Smart Four-Piston Diaphragm Pump |
| Flow Rate | 0.005-0.3 L/min |
| Speed Range | 20-2000 rpm |
| Voltage | 110-220V |
| Power | 0.1KW |
| Max. Operating Pressure: Temperature of Fluid < 40°C (104°F) | 10 bar |
| Max. Operating Pressure: Temperature of Fluid > 40°C (104°F) | 6 bar |
| Maximum Temperature Fluid | 80°C (176°F) |
| Moist Heat Sterilization (SIP) 30 min | 135°C (275°F) |
| Pump Chamber Volume (excluding fittings) | 3 ml |
| Pump Weight with Motor and Housing | 12.5 kg |
| Connector | TC Clamp ( Ø25) |
| Pump Dimension with Motor and Housing (L x W x H) | 305 x 424.5 x 225 mm |
Speed-Flow Characteristics
The figure below shows the speed-flow characteristic curves of the TC018 pump under different operating pressures, using purified water at room temperature as the test medium.
The relationship between speed and flow is essentially linear, demonstrating stable and predictable flow performance across the operating range. The adjustable speed range is 20–2000 rpm, and the maximum flow rate can exceed 0.3 L/min under appropriate operating conditions.
The linear relationship between speed and flow enables stable, predictable, and controllable fluid transfer performance across a wide operating range.

TC018 speed-flow characteristic curves under different operating pressures
Wetted Materials
| Pump Chamber with Inlet/Outlet Ports | AISI 316L |
| Diaphragm | PTFE |
| Check Valve Diaphragm | EPDM |
| O-Ring | EPDM |
Non-wetted Materials
| Pump Housing | SUS 304 |
| Machined Metal Parts | SUS 304 |
| Screw and Sleeve Nut | SUS 304 |
Environmental Specifications
| Storage & Transportation Temperature Range | 5–55 °C |
| Storage & Transportation Humidity Range | 0–50% |
| Operating Temperature Range | 2–40 °C |
| Operating Humidity Range | 0–50% |
Customization & OEM Integration
The TC Series can be configured for integration into laboratory instruments, OEM equipment, and process systems requiring precise sanitary fluid handling.
Configurations may include integrated smart pump systems for standalone use, or pump head configurations for system-level integration into externally controlled process environments.
Sainty Flowtech supports customization options including control integration, connection configurations, mounting solutions, and system-specific adaptations to support seamless integration into OEM equipment and process skids.
Need a Sanitary Pump Solution for Your Process System?
Contact Sainty Flowtech to discuss TC018 configuration, application suitability, and quotation support for your biopharmaceutical or sanitary processing system.
