Four Years of Stable Operation! Jiangsu Packaging Company Purchases Rotary Valve RTO for the Third Time

In May 2024, a packaging materials company in Kunshan, Jiangsu, made its third purchase of Yurcent's rotary valve RTO, reinforcing its commitment to sustainable production after years of proven success.

Project Background

The Kunshan-based company, with 30+ years in flexible packaging printing, specializes in high-barrier, multi-functional films and materials. Its products—including plastic printed bags and films for food, daily goods, and pet food packaging—are exported to 100+ countries.

In 2019, to drive green transformation, the company partnered with Xi’an Yurcent Environment Technology Co., Ltd to treat VOC emissions from its printing workshops using rotary valve RTOs.

Key Results After 4 Years:

• Stable VOCs emissions ≤30 mg/m³(real-time monitoring)

• Two-phase RTO installations(2019 & 2023)

• Third purchase in 2024, citing reliability and efficiency

Emission Sources & Composition

• Sources:7 printing machines + 2 laminators

• Total flow rate:100,000 m³/h

• Key solvents: Ethyl acetate (64%), propyl acetate (31%), isopropanol (5%)

• Ink solvents: Isopropanol, ethanol, butanone, PMA (~10%)

• Theoretical VOC concentration:2,500–4,000 mg/m³

Design Highlights

1. Two 50,000 m³/h Rotary Valve RTOs

• Phase I (2019) and Phase II (2023 "Jinding" series)

• Flexible operation: One or both RTOs can run based on production demand.

1. Energy Recovery

• Waste heat generates steam for drying inks/films, cutting energy costs.

1. Emission Control

• "Reduced airflow + increased concentration"retrofits optimize RTO efficiency.

Why the Client Chose Yurcent Again

✅ Proven stability: Phase I RTO ran 4+ years without downtime.

✅ Ultra-low emissions: Consistently ≤30 mg/m³, exceeding local standards.

✅ Energy savings: Steam reuse reduces 20%+ thermal energy costs.

✅ Compact & smart: 3rd-gen RTOs save space and integrate IoT monitoring.

Client Testimonial

"Yurcent’s RTOs solved our dual challenges—emission compliance and energy costs. Their reliability made the third purchase an easy decision."