Automatic BOV Pressure Testing & Valve Cleaning Machine

Automatic inline BOV quality-control system integrating three pressure-testing heads and three valve-cleaning heads. Designed for installation after liquid filling to verify internal pressure, remove valve residues and support stable downstream production.

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Key Specifications

● Output: 40–60 cans/min (2,400–3,600 cans/hour)
● Configuration: 3 pressure-testing heads + 3 valve-cleaning heads
● Testing Range: 0–1.6 MPa
● Testing Accuracy: ±0.02 MPa
● Valve Size: 1 inch (25.4 mm)
● Cleaning Process: Liquid flushing followed by compressed-air drying
● Construction: SUS304 frame with sanitary SUS316L fluid-contact parts

Brand:

AILE

Spu:

AL-BOV-CNY

Description
Machine Testing & Cleaning Demonstration Video
Online Testing & Cleaning Sequence
Technical Specifications
Frequently Asked Questions (Technical & Quality Control)

bov pressure testing valve cleaning machine-3

+86-152 5252 7882

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Description

Automatic BOV Internal Pressure Testing & Valve Cleaning Monobloc

Critical Barrier Packaging Quality Control: Engineered for continuous online installation directly after liquid filling on automatic BOV filling lines. Delivers a verified continuous throughput of 40–60 cans/min (2,400–3,600 cans/hour). Built with food and pharmaceutical contact standards using SUS304 and sanitary SUS316L conduits.

In Bag-on-Valve (BOV) packaging, container equilibrium pressure determines spray pattern, evacuation rate, and safety shelf-life. This monoblock unit performs 100% online internal pressure testing across 3 containers simultaneously. An analog-to-digital sensor registers equilibrium values directly through the valve stem; any under-pressurized or over-pressurized can is tagged in the PLC memory and automatically pushed off into a reject bin. Learn more about process stages in our guide: What is Bag-on-Valve technology?.

Immediately following inspection, 3 dedicated cleaning heads deliver alcohol or deionized water flushing to clear liquid residues from the valve core and cup recess, followed by high-pressure air drying to prevent nozzle clogging and microbial growth.

Machine Testing & Cleaning Demonstration Video

Online Testing & Cleaning Sequence

1. Conveyor Infeed → 2. Servo Starwheel Indexing → 3. 3-Head Pressure Sensing → 4. 3-Head Solvent/Alcohol Flush → 5. Air-Knife Blow Drying → 6. Bad-Can Auto Rejection → 7. Outfeed to Capping

Technical Specifications

Productivity	40–60 cans/min (2,400–3,600 cans/hour)
Head Configuration	3 Pressure Testing Heads + 3 Valve Cleaning Heads + Air Blowers
Pressure Testing Range	0 – 1.6 MPa (High/Low alarm thresholds digitally configured)
Measurement Accuracy	±0.02 MPa (Digital analog conversion)
Applicable Container Diameter	Ø35 mm – Ø66 mm
Applicable Container Height	90 mm – 260 mm (Adjustable up to 360 mm)
Applicable Valve	Conventional 1 inch (25.4 mm) Bag-on-Valve systems
Operating Air Pressure	0.6 – 0.8 MPa (Air supply must be dry & filtered)
Control Architecture	PLC & Color Touchscreen with Precision Planetary Servo Drive
Operating Voltage	220V / 380V; 50/60 Hz
Dimensions	1040 × 1050 × 2035 mm

Evaluating complete turnkey packaging configurations? Compare equipment in our BOV filling equipment selection guide.

Frequently Asked Questions (Technical & Quality Control)

1. How does the machine measure internal pressure without accidentally spraying product out? +

The testing head uses a micro-stroke pneumatic cylinder with a sealed measuring chamber. It applies calculated vertical pressure just enough to depress the valve core by 0.5–1.0 mm to communicate with the internal propellant headspace without discharging fluid from the sealed inner bag. The reading is stabilized and digitized in milliseconds before the head retracts smoothly.

2. What cleaning agents are compatible with the valve washing unit? +

The system supports pharmaceutical-grade ethanol (alcohol), purified deionized water, or mild sanitizing solutions. Fluid pathways are constructed from certified SUS316L stainless steel. An integrated drain channel evacuates all rinse liquid away from the container opening, and dual air-knives blow the valve cup dry immediately afterward to prevent microbial growth or rust.

3. How does the bad-can rejector ensure zero defective cans slip through? +

Each container occupies a tracked position in the servo starwheel indexing register. If any of the 3 testing heads detects a value outside the preset high/low pressure thresholds (e.g., <0.45 MPa or >0.65 MPa), that specific pocket is tagged in the PLC. As it passes the outfeed starwheel, a dedicated pneumatic flipper diverts that container into an offline collection bin with 100% positional accuracy.

4. How long does format changeover take when switching can heights and diameters? +

Can height adjustment (from 90mm up to 260mm+) is handled via an ergonomic top handwheel with mechanical scale indicators in under 3 minutes. For changing can diameters (e.g., from Ø45mm to Ø52mm or Ø65mm), quick-release starwheels and guide rails allow complete tool-free replacement in approximately 15 minutes.

5. Does the machine record historical internal pressure testing data for quality auditing? +

Yes. The touchscreen HMI features a dedicated "Historical Records" (HistData) database that logs testing times, head numbers (A/B/C), measured pressure figures, and pass/reject tallies. This provides quality managers with batch traceability to meet pharmaceutical and ISO/GMP compliance standards.

6. Can this machine be integrated into an existing third-party BOV line? +

Yes. The machine includes standard height-adjustable conveyor connection brackets and independent explosion-proof drives. It synchronizes seamlessly between upstream liquid fillers and downstream button/capping stations using simple line interlock sensors. You can also view our pre-shipment FAT checklist to learn how we validate integration before dispatch.