Durr Technik PAG-132 Oil-Free Piston Air Compressor for Municipal Water Treatment & Swimming Pool Facilities
| Brand | Durr Technik |
|---|---|
| Origin | Germany |
| Type | Imported |
| Model | PAG-132 |
| Compression Principle | Piston-Type |
| Flow Rate | 0–132 L/min |
| Operating Pressure | 0–10 bar |
| Filtration Grade | 0.01 µm or 0.1 µm particulate removal |
Overview
The Durr Technik PAG-132 is an oil-free piston air compressor engineered specifically for critical low-contamination applications in municipal water treatment plants and commercial swimming pool operation systems. Unlike lubricated compressors, the PAG-132 employs a dry-running, carbon-fiber-reinforced piston sealing system that eliminates hydrocarbon carryover—ensuring ISO 8573-1 Class 0 certified compressed air (verified by TÜV-certified test reports). Its robust cast-iron frame and precision-machined cylinder bore deliver long-term dimensional stability under continuous duty cycles typical of chlorination dosing, backwash control valves, pneumatic actuators, and automated filtration sequencing. The unit operates on a single-phase 230 V / 50 Hz supply and is designed for ambient temperatures ranging from 5 °C to 40 °C, with IP54-rated electrical enclosures suitable for damp indoor environments common in pump houses and chemical storage rooms.
Key Features
- True oil-free compression architecture—no risk of oil vapor contamination in chlorine contact zones or air-driven diaphragm pumps handling sodium hypochlorite solutions
- Adjustable pressure regulation via integrated proportional pressure controller (0–10 bar), supporting dual-pressure operation for both low-flow instrumentation air (e.g., 2–4 bar for sensor purging) and high-force actuation (e.g., 7–10 bar for multi-port valve banks)
- Modular post-compression treatment options: desiccant dryer (dew point ≤ −40 °C) or refrigerated dryer (dew point ≤ +3 °C), both compliant with ISO 8573-3 for moisture classification
- Multi-stage filtration: coalescing pre-filter (99.9% @ 0.1 µm), optional ultra-high-efficiency final filter (99.9999% @ 0.01 µm), meeting EN 12952-15 requirements for compressed air purity in potable water infrastructure
- Low-noise operation (<62 dB(A) at 1 m), achieved through vibration-damped mounting and acoustic enclosure design—critical for installations adjacent to administrative offices or public-facing pool equipment rooms
- Integrated thermal overload protection, automatic condensate drain with float-level monitoring, and RS-485 Modbus RTU interface for integration into SCADA-based facility management systems
Sample Compatibility & Compliance
The PAG-132 is validated for continuous operation in environments governed by DIN EN 1717 (protection against pollution of potable water), US EPA Guidance for Public Water Systems (40 CFR Part 141), and EN 15288-2 (swimming pool safety standards). Its compressed air output meets the microbiological and particulate limits required for use in chlorine gas feed systems, ozone generator purge lines, and membrane backpulse circuits where ISO 8573-1 Class 1:2:1 (solid particles, water, oil) is mandated. All wetted materials—including stainless steel check valves, EPDM diaphragms, and anodized aluminum heat sinks—are NSF/ANSI 61 certified for potable water contact.
Software & Data Management
While the PAG-132 operates as a standalone unit, its optional digital control module supports logging of runtime hours, pressure cycle counts, temperature excursions, and filter service intervals. Data export is available via USB-C or Modbus TCP to third-party CMMS platforms (e.g., IBM Maximo, SAP PM). Audit trails comply with GLP-aligned record-keeping practices, including timestamped event logs with operator ID tagging—facilitating traceability during regulatory inspections per EU Directive 2000/60/EC (Water Framework Directive) or state-level drinking water audits.
Applications
- Actuation of solenoid and pneumatic control valves in rapid gravity filters and pressure sand filters
- Purging of online turbidity and residual chlorine analyzers to prevent optical window fouling
- Supplying instrument air to dissolved ozone monitors and UV transmittance sensors
- Powering air-agitated chemical mixing tanks for flocculant preparation
- Backwashing of granular activated carbon (GAC) and anthracite media beds
- Operating vacuum ejectors for chlorine gas leak detection systems in enclosed chlorination rooms
FAQ
Is the PAG-132 certified for use in potable water facilities under German Trinkwasserverordnung (Drinking Water Ordinance)?
Yes—the entire air path is constructed from WRAS- and DVGW-listed materials; full conformity documentation is supplied with each unit.
Can the 0.01 µm filtration option be retrofitted after installation?
Yes—filter housings are standardized to ISO 8573-4 mounting dimensions and support field-upgrade kits with calibrated flow calibration certificates.
Does the compressor meet FDA 21 CFR Part 11 requirements for electronic records?
The optional digital module provides electronic signatures, audit trails, and secure user access levels—fully configurable to satisfy Part 11 compliance when deployed in pharmaceutical-grade water systems.
What maintenance schedule is recommended for continuous 24/7 operation?
Piston rings and cylinder liners are rated for 15,000 operating hours; scheduled servicing includes valve plate inspection every 4,000 hours and desiccant replacement every 12 months under typical humidity conditions.
Is technical support available in English with remote diagnostics capability?
Durr Technik’s global service network provides remote firmware updates, real-time pressure waveform analysis, and bilingual (English/German) engineering support via secure TeamViewer sessions.
