ZiQi ZVE-30 Diaphragm Vacuum Pump with Liquid Trap
| Brand | ZiQi |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Diaphragm Pump |
| Product Type | Oil-Free Vacuum Pump |
| Air Displacement Rate | 5–30 L/min (adjustable) |
| Ultimate Vacuum | −0.085 MPa (−85 kPa) |
| External Dimensions | 370 × 250 × 260 mm |
| Weight | 3 kg |
| Motor Power | 90 W |
| Liquid Trap Capacity | 1000 mL |
| Input Voltage | 220 V AC |
Overview
The ZiQi ZVE-30 Diaphragm Vacuum Pump with Integrated Liquid Trap is a compact, oil-free laboratory vacuum source engineered for reliable, contamination-free operation in demanding benchtop applications. Unlike rotary vane or piston-based vacuum systems, the ZVE-30 employs a precision-engineered elastomeric diaphragm actuated by an eccentric cam mechanism—generating vacuum through reciprocating positive displacement without lubricants or hydrocarbon vapors. This design ensures compliance with ISO 8573-1 Class 0 air purity requirements for vacuum pathways and eliminates risk of oil backstreaming into sensitive samples or downstream instrumentation. The pump achieves a stable ultimate vacuum of −85 kPa (absolute), suitable for filtration, solvent evaporation, vacuum drying, degassing, and aspiration workflows where moderate vacuum levels and chemical compatibility are critical. Its integrated 1000 mL borosilicate glass liquid trap—fitted with PTFE-coated inlet/outlet ports and a level-indicating sight gauge—enables safe, continuous removal of aqueous or mildly corrosive liquids without compromising pump integrity.
Key Features
- Oil-free diaphragm architecture ensures zero hydrocarbon contamination and eliminates routine oil changes or filter replacements.
- Adjustable vacuum control via integrated needle valve allows precise regulation of suction pressure between −10 kPa and −85 kPa (absolute), supporting method-sensitive protocols such as gentle cell harvesting or controlled solvent removal.
- Compact footprint (370 × 250 × 260 mm) and lightweight construction (3 kg) facilitate integration into fume hoods, biosafety cabinets, or mobile lab carts without structural reinforcement.
- Corrosion-resistant wetted materials—including EPDM diaphragm, PTFE-coated valves, and stainless-steel fasteners—provide compatibility with dilute acids, bases, and organic solvents per ASTM D471 testing guidelines.
- Thermally protected 90 W induction motor enables uninterrupted operation for up to 10 hours at rated load, with surface temperature rise limited to <45 °C above ambient under continuous duty cycle (IEC 60034-1).
- Low-noise operation (<52 dB(A) at 1 m distance) meets WHO occupational exposure thresholds for laboratory environments and supports quiet operation in shared analytical spaces.
Sample Compatibility & Compliance
The ZVE-30 is validated for use with aqueous solutions, buffered saline, ethanol/water mixtures, and diluted acetic or citric acid (≤10% v/v). It is not recommended for halogenated solvents, strong oxidizers (e.g., nitric acid >5%), or viscous media (>500 cP). All wetted components comply with USP Class VI biocompatibility standards and EU Regulation (EC) No 1935/2004 for food-contact materials. The unit bears CE marking per Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU. Optional GMP-compliant documentation packages—including Factory Acceptance Test (FAT) reports and material traceability certificates—are available upon request for regulated QC/QA laboratories.
Software & Data Management
While the ZVE-30 operates as a standalone analog device, its vacuum output is compatible with third-party digital pressure transducers (e.g., Validyne DP15, Omega PX409 series) for real-time logging via USB or 4–20 mA interfaces. When integrated into GLP/GMP workflows, users may pair the pump with validated data acquisition platforms (e.g., LabArchives ELN, Thermo Fisher SampleManager LIMS) to record operational timestamps, pressure setpoints, and runtime duration—supporting audit trails required under FDA 21 CFR Part 11 and ISO/IEC 17025 clause 7.7.
Applications
- Vacuum-assisted filtration of biological suspensions, particulate slurries, or membrane-based assays.
- Removal of volatile solvents during sample concentration prior to LC-MS or GC analysis.
- De-airing of resin composites, casting gels, or dental impression materials.
- Aspiration of culture supernatants, wash buffers, or diagnostic reagents in clinical microbiology labs.
- Supporting vacuum desiccators in stability testing per ICH Q1A(R2) guidelines.
FAQ
Is the ZVE-30 certified for use in ISO Class 5 cleanrooms?
No—while its oil-free design prevents particulate generation, it lacks HEPA-filtered exhaust and static-dissipative housing required for cleanroom classification.
Can the liquid trap be autoclaved?
The borosilicate glass body is autoclavable at 121 °C for 20 minutes; however, the PTFE-coated ports and silicone O-rings must be removed prior to sterilization.
What maintenance intervals are recommended?
Diaphragm replacement is advised every 12 months under continuous operation; valve assemblies should be inspected quarterly for wear or chemical swelling.
Does the pump meet UL safety standards for North America?
It complies with UL 61010-1 (3rd edition) when operated on 220 V ±10%, 50 Hz supply; a step-down transformer is required for 120 V regions.
Can vacuum level be monitored externally?
Yes—the inlet port includes a 1/8″ NPT female thread for direct connection to analog or digital vacuum gauges calibrated to kPa or Torr scales.
