ChemTron 07065 Series Controlled Motor-Driven Diaphragm Metering Pump

Overview

The ChemTron 07065 Series Controlled Motor-Driven Diaphragm Metering Pump is an industrial-grade, precision fluid delivery system engineered for reproducible, pulse-free dosing in laboratory, pilot-scale, and controlled process environments. Based on positive displacement principle with a mechanically actuated PTFE-reinforced diaphragm, the pump delivers high chemical resistance and leak-tight operation without dynamic seals or packing glands. Its electronically regulated AC motor enables precise stroke frequency modulation — independent of discharge pressure — ensuring consistent volumetric output across variable system back pressures up to 77 bar. Designed and assembled in Germany under stringent quality control protocols, the 07065 platform meets the dimensional, material, and performance expectations of ISO/IEC 17025-accredited laboratories and GMP-compliant facilities requiring traceable, auditable liquid handling.

Key Features

• Motor-driven diaphragm architecture with dual-layer PTFE/composite diaphragm for extended service life and compatibility with aggressive solvents, acids, bases, and halogenated media
• Stepless electronic speed control via integrated potentiometer or external 0–10 V / 4–20 mA analog signal input for seamless integration into SCADA or PLC-based process control systems
• Fixed-stroke-volume design (5.2 mL/stroke) combined with adjustable stroke frequency (0–200 spm) enables linear flow rate tuning from 0 to 63 L/h with ±1% repeatability (per ISO 5199)
• G–DN3/4 threaded ports conforming to ISO 228-1 standard; compatible with stainless steel (SST) and polyvinylidene fluoride (PVT) wetted material variants for application-specific corrosion resistance
• Self-priming capability up to 6 m water column (WS), with allowable inlet pre-pressure up to 1 bar absolute — suitable for elevated tank or pressurized feed configurations
• CE-marked, RoHS-compliant construction with IP54-rated motor housing; designed for continuous duty cycle under ambient temperatures of 5–40 °C and relative humidity ≤80% non-condensing

Sample Compatibility & Compliance

The 07065 Series accommodates a broad spectrum of low- to medium-viscosity liquids (≤500 mPa·s), including aqueous solutions, organic solvents, diluted reagents, and low-solids suspensions (<5% w/w). Wetted materials are selected per model variant: 07065 PVT employs PVDF body, PTFE diaphragm, and EPDM valves for general-purpose chemical resistance; 07065 SST utilizes 316 stainless steel body, Hastelloy C-276 valve seats, and FKM elastomers for high-purity or high-temperature applications. All models comply with EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU. Documentation includes Declaration of Conformity, material traceability certificates (EN 10204 3.1), and test reports verifying flow linearity and pressure-hold integrity at rated back pressure.

Software & Data Management

While the base 07065 operates as a stand-alone analog-controlled device, optional digital interface modules support Modbus RTU (RS-485) or EtherNet/IP communication protocols. When integrated with ChemTron’s optional PumpControl Suite (v3.2+), users gain access to real-time stroke counter logging, cumulative volume tracking with UTC timestamping, and configurable alarm thresholds for flow deviation (>±3%), motor overload, or dry-run detection. Audit trail functionality complies with FDA 21 CFR Part 11 requirements when deployed on validated Windows OS platforms with user role management and electronic signature enforcement. Raw operational data exports in CSV format for post-processing in LIMS or statistical process control (SPC) software.

Applications

• Continuous reagent dosing in automated titration and ion chromatography sample preparation systems
• Accurate catalyst injection in lab-scale hydrogenation or polymerization reactors
• pH correction loops in bioreactor feed trains and environmental water quality analyzers
• Calibration standard delivery in gravimetric flow verification rigs (per ISO 4064-2)
• Controlled additive metering during formulation development for coatings, adhesives, and pharmaceutical suspensions
• Integration into ASTM D975 or EN 590 fuel lubricity test setups requiring repeatable 1–5 mL/min dosing profiles

FAQ

What is the maximum allowable suction lift for the 07065 pump?

The pump supports self-priming up to 6 meters of water column (m WS) under standard atmospheric conditions and with clean, degassed liquid.
Can the 07065 operate against a closed valve or dead-head condition?

Yes — its diaphragm design and integral pressure relief mechanism (optional accessory) permit safe dead-head operation up to rated maximum back pressure (77 bar); however, prolonged static pressure exposure is not recommended without thermal derating.
Is flow calibration traceable to national standards?

Factory calibration is performed using NIST-traceable Coriolis mass flow standards; certificate of calibration (ISO/IEC 17025 accredited lab option available upon request).
How does temperature affect volumetric accuracy?

Thermal expansion of the diaphragm and internal components introduces drift <±0.02%/°C above 25 °C; for critical applications, ambient temperature stabilization or flow compensation algorithms are advised.
Are spare parts and service documentation available globally?

Original OEM diaphragms, valve kits, and motor assemblies are stocked by ChemTron’s authorized distribution network in EMEA, North America, and APAC; technical manuals and exploded diagrams are provided in English, German, and French upon registration.