Precision Fluid Control Technology
Precision Fluid Control for Every Scale
Piston Pumps & Diaphragm Pumps
From analytical pumps at 0.002 mL/min to industrial flow at 80 L/min — engineered for accuracy, built for biopharma.
0.002ml–80L
6000 psi
±0.03%
30+ Years
- Product Portfolio -
Four Pump Platforms, One Mission
Covering every flow rate, pressure, and material requirement — from analytical R&D to full-scale biopharma production.
High-Pressure Piston Pump
Eldex Optos Series — 30+ years of precision manufacturing. Sapphire plunger, ruby check valves, up to 6000 psi with ±0.03% repeatability.
0.002–80 mL/min
Max. 6000 psi
Sapphire Piston
Double-Piston Pump
Isoplex P Series — the workhorse platform from 10 to 3000 mL/min. Dual-piston design with 4 head material options for any solvent.
0.1–3000 mL/min
Max. 42 MPa
Four Head Materials
Three-Piston Pump
Multi-gradient precision with 3 independent channels. Designed for ternary/quaternary gradient elution in method development and preparative industrial fluid unit.
Multi-Gradient
3-Channel
Industrial Compatible
Quaternary Diaphragm Pump
Isoplex QDP Series — sanitary-grade, low-shear fluid delivery for biopharma. CIP/SIP compatible with PLC integration.
5–1200 L/H
Sanitary Grade
Low Shear
01 – High-Pressure Piston Pump
30+ Years of Precision — The Gold Standard for High-Pressure Fluid Delivery. Sapphire plunger, ruby ball check valves, and up to 6000 psi with ±0.03% repeatability.
6000 psi
Industry-leading ultra-high-pressure delivery capability. Handle the most demanding flow paths with confidence.
±0.03% Repeatability
Precision fluid control at the analytical level. Stepper motor speed regulation ensures smooth, accurate liquid delivery.
9 Configurations
3 models (1/2/3) × 3 interchangeable pump heads (L/S/H) = 9 unique flow/pressure combinations from a single platform.
Specifications – 316 SS Head
| Model | Stroke (in.) | Flow (mL/min) | Max Pressure (psi) | Plunger (in.) |
|---|---|---|---|---|
| 1LM | .125 | 0.002 – 2.5 | 6000 | 3/32 |
| 1SM | .125 | 0.003 – 5 | 6000 | 1/8 |
| 1HM | .125 | 0.01 – 20 | 3000 | 1/4 |
| 2LM | .250 | 0.003 – 5 | 6000 | 3/32 |
| 2SM | .250 | 0.01 – 10 | 6000 | 1/8 |
| 2HM | .250 | 0.02 – 40 | 1500 | 1/4 |
| 3LM | .500 | 0.01 – 10 | 3000 | 3/32 |
| 3SM | .500 | 0.01 – 20 | 1500 | 1/8 |
| 3HM | .500 | 0.04 – 80 | 750 | 1/4 |
Pump Head
316 SS
Up to 6000 psi. Standard for high-pressure analytical and preparative applications.
PEEK
Up to 4000 psi. Metal-free path for bio-pharma and ion-sensitive analyses.
Hastelloy C
Up to 6000 psi. Superior corrosion resistance for aggressive chemical environments.
⊕ Optional Configurations & Accessories
▣ PLUS Models with Pulse Damper (1LMP/1SMP/1LIP/1SIP)
▣ Head Heater / Cooler
▣ Integrated Plunger Wash System
▣ RS485 Control Transfer
Configure Your Optos Pump
Select model, head material, stroke length, and accessories — we’ll build it to your specs.
02 – Double Piston Pump
The Workhorse of Chromatography — Covering 1 to 3000 mL/min with a Single Platform. From QC labs to full production, the PUP Series delivers reliability at every scale.
Dual Plunger Series
Dual-plunger series design with suspended plunger mechanism. Pressure pulsation below 0.5% ensures ultra-smooth flow delivery.
4 Head Materials
316L SS, Hastelloy C, PEEK, and PTFE options. Match any solvent compatibility requirement from standard to highly corrosive.
Smart Control
5″ touch screen (5.6″ on industrial models), RS232/LAN connectivity, open protocol for third-party software integration.
Safety First
Power-loss protection, automatic alarm with programmed shutdown, real-time fault detection and online help system.
| Model | Flow (mL/min) | Max Pressure | Accuracy | Power | Weight | Head Options |
|---|---|---|---|---|---|---|
| P0010 | 0 – 9.999 | 42 MPa (SS/C) | ±0.15% (SS/C) | 75W | 6.9 kg | SS / C / PEEK / PTFE |
| P0050 | 0 – 49.999 | 30 MPa (SS/C) | ±0.15% (SS/C) | 150W | 6.9 kg | SS / C / PEEK / PTFE |
| P0100 | 0 – 99.99 | 25 MPa (SS) | ±0.5% (PEEK) | 150W | 8.5 kg | SS / PEEK / PTFE |
| P0200 | 0 – 199.99 | 20 MPa (SS) | ±0.5% (PEEK) | 150W | 8.5 kg | SS / PEEK / PTFE |
| P0500 | 0 – 499.99 | 15 MPa | — | 750W | 27.2 kg | 316L SS |
| P1000 | 0 – 999.99 | 15 MPa | — | 1000W | 27.2 kg | 316L SS |
| P3000 | 0 – 2999.9 | 10 MPa | — | 1500W | 73 kg | 316L SS |
Pump Head
316 SS
Standard solvents, general-purpose chromatography. Best all-round choice for most applications.
PEEK
Metal-free analysis, bio-pharma applications. Ideal when metal ion contamination must be avoided.
Hastelloy C
Corrosive media, aggressive acidic/alkaline solutions. Superior chemical resistance.
PTFE
Highly aggressive solvents, HF-containing media. Ultimate chemical inertness.
Need a Pump for Your Specific Solvent?
Our engineers will match the right head material and model to your exact requirements.
03 – Three-Piston Pump
Three Independent Channels, One Unified Platform. Designed for ternary/quaternary gradient elution with independent piston-driven architecture for simultaneous multi-solvent delivery.
3 Independent Channels
Three pistons independently driven for precise gradient mixing. Each channel with individual flow control and gradient accuracy <1%.
Multi-Solvent
Compatible with aqueous, organic, and buffer solutions. Flexible solvent management for complex separation methods.
Gradient Editing
Built-in gradient editor with 5″ touch screen. Create, store, and execute complex multi-step gradient programs directly.
System Compatible
Fully compatible with HPLC systems. RS232/LAN remote control for seamless integration into existing workflows.
TPP-003 | TPP-005 | TPP-010 | TPP-040 | TPP-060 | TPP-080 | |
Head Material | 316L Stainless Steel | |||||
Piston Material | Ceramics (zirconia) | |||||
Flow Range | 0.1-3L | 0.1-5L | 0.1-10L | 1-40L | 1-60L | 1-80L |
Check valve Material | Zirconia/Silicon Nitride, PEEK, 316L Stainless Steel | |||||
Infusion Mode | Three pistons, in series | |||||
Max. Work Pressure | ≦10MPa | |||||
Step Size | 0.1 L/min | |||||
Pressure Pulsation | ≦0.5MPa | |||||
Flow Precision | ±1.5％ | |||||
Repeatability RSD | ≦1％ | |||||
Pulse Damper | optional | |||||
Control Model | RS232 or LAN or RS485 | |||||
inlet Diameter | Φ6 | Φ10 | Φ12 | Φ20 | Φ26 | Φ32 |
Outlet Diameter | Φ6 | Φ8 | Φ10 | Φ18 | Φ24 | Φ30 |
Power | 1.1KW | 1.5KW | 3KW | 11KW | 15KW | 22KW |
Size | 240×360×360mm | 320×370×170mm | 550×460×300mm | 770×550×320mm | 820×550×320mm | 950×630×400mm |
Ideal For
Method Development
Multi-solvent gradient screening to find optimal separation conditions quickly.
Multi-Component Separation
Complex mixtures requiring precise multi-solvent gradient profiles.
Process Optimization
Fine-tune gradient parameters for maximum yield and purity in preparative work.
Industrial Fuild Control
Preparative and semi-preparative gradient elution with reproducible results.
Discuss Your Gradient Requirements
Tell us about your separation challenge — we’ll recommend the ideal pump configuration.
04 – Quaternary Diaphragm Pump
Gentle on Biomolecules, Tough on Performance — Sanitary-Grade Flow for Biopharma. Low-shear, low-pulsation design purpose-built for monoclonal antibodies, vaccines, CGT, and blood products.
Low Shear
Prevents loss of biological activity. Protects protein and virus structural integrity throughout the entire flow process.
Low Pulsation
Linear relationship between RPM and flow rate across multiple pressures. Consistent, pulse-free delivery every time.
Sanitary Design
SS 1.4435 body with EPDM check valves and PTFE/PP diaphragm. Fully CIP and SIP compatible for GMP environments.
Smart PLC
Built-in PLC with expandable pressure/flow sensors. Data storage, graph analysis, and 7″ embedded touch screen.
| Parameter | QDP150 | QDP600 | QDP1200 |
|---|---|---|---|
| Flow Range | 5 – 180 L/H | 30 – 600 L/H | 60 – 1200 L/H |
| Flow Accuracy | ±5% | ±5% | ±5% |
| Max Pressure | 6 bar | 6 bar | 6 bar |
| Connection | 1/4″ TC25 | 1/2″ TC25 | 3/4″ TC25 |
| Power | 45W | 700W | 700W |
| Weight | 20 kg | 23 kg | 23 kg |
| Dimensions | 430×310×290 mm | 430×320×290 mm | 430×320×290 mm |
| Display | 7″ Touch | 7″ Touch | 7″ Touch |
Sensor Configuration & Accuracy
Standard Configuration
1–3 pressure sensors + 1 electromagnetic flow meter. Standard accuracy: ±5%. Expandable with additional sensors for comprehensive monitoring.
With Flow Meter
Add electromagnetic flow meter to achieve ±2% accuracy. Full data storage and real-time graph analysis on the 7″ touch screen.
Application Domains
Monoclonal Antibodies
Recombinant Proteins
Vaccines
CGT
Blood Products
Buffer Filtration
Sample Transfer
UF / DF
Virus Filtration
Design Your Bioprocess Flow System
From buffer preparation to final filtration — let our engineers design the perfect QDP configuration for your process.
- Application Guide -
Which Pump Fits Your Application?
Use our selection matrix to quickly identify the optimal pump for your workflow — or contact our team for personalized recommendations.
Analytical HPLC
→ Eldex Piston Pump
0.002–20 mL/min, up to 6000 psi. Ultra-low flow rates with sapphire/ruby precision for demanding analytical methods.
Preparative Purification
→ Double-Piston Pump
1–3000 mL/min, up to 42 MPa. High-flow preparative pumping with multiple head material options.
Industrial Biopharma
→ QDP600/1200 + P1000/3000
600–3000 L/H for large-scale bioprocess. Sanitary-grade diaphragm pumps paired with industrial plunger pumps.
Method Development
→ Three-Piston Pump
3-channel independent gradient for rapid method screening and optimization with multi-solvent systems. demanding analytical methods.
Virus Filtration / TFF
→ QDP150 / QDP600
Low-shear, sanitary-grade delivery for gentle handling of viral vectors. CIP/SIP compatible for GMP compliance.
Corrosive Solvents
→ PUP0010-C (Hastelloy C) or Eldex HC Head
Specialized corrosion-resistant materials for aggressive acidic/alkaline media. Hastelloy C construction throughout.
- Complete Your System -
Bundle & Save
Pumps are just the beginning. Build a complete fluid control system with matched components.
Pump + Column Bundle
Matched pump and HPLC column for optimized performance out of the box
Integrated LC System
Pump + detector integration for turnkey chromatography solutions.
Bioprocess Flow Package
Pump + TFF system for complete bioprocess fluid management.
Pressure-Controlled System
Pump + back pressure regulator for precise pressure management.
✪ ISO 9001 Certified
✪ GMP Compliant
✪ 30+ Years of Experience
✪ Control & Material Technology
Need the Right Pump for Your Application?
Our fluid control engineers will help you select the perfect configuration.
Get a response within 24 hours.
English 
العربية 
Français 
Deutsch (Sie) 
한국어 
Русский 
Español de Argentina 