Oil Filtration & Flushing Services

Hot oil flushing and filtration for critical hydraulic and lubrication systems, delivered to NAS 1638 and ISO 4406 cleanliness standards.

About This Service

Hot Oil Flushing & Filtration for Superior System Cleanliness

Rays Technical Services provides Hot Oil Flushing and Filtration Services for critical hydraulic and lubrication systems in accordance with NAS 1638 / ISO 4406 cleanliness standards.

We ensure system reliability by removing contaminants, varnish, and debris that affect hydraulic performance. Our flushing rigs are equipped with certified filters and particle counters to deliver results up to NAS 5/6 cleanliness level.

Engineering Services

Flushing and Filtration.
Clean Oil, Every System.

Rays Technical Services offers two structured oil cleanliness services, designed to protect hydraulic, lube, and control oil systems.

Hot Oil Flushing For Hydraulic, Lube & Control Oil Systems

A complete hot oil flushing and chemical cleaning service that removes contaminants, varnish, and debris affecting hydraulic performance, in accordance with NAS 1638 / ISO 4406 standards.

Suited to

  • Hydraulic oil systems
  • Hydraulic oil systems

Our flushing rigs are fitted with certified filters and particle counters, delivering results up to NAS 5/6 cleanliness level and restoring system reliability.

Filtration & Oil Analysis For On-Site & Workshop-Based Requirements

A flexible filtration service using certified filtration rigs, supported by oil sampling and condition analysis, delivered on site or in our workshop. Every job is monitored with real-time particle counts and closed out with complete flushing records.


Suited to

  • High-velocity flushing with real-time monitoring
  • High-velocity flushing with real-time monitoring
  • High-velocity flushing with real-time monitoring

Our flushing rigs are fitted with certified filters and particle counters, delivering results up to NAS 5/6 cleanliness level and restoring system reliability.

How It Works

One process. Measured cleanliness. Complete records.

Clean oil is the fastest way to protect hydraulic performance. In many cases, a proper flush restores reliability before any costly component is replaced.

Assessment

System, oil condition, and target cleanliness are evaluated

Flushing

Hot oil flushing removes contaminants, varnish, and debris

Monitoring

Particle counts are tracked in real time throughout

Reporting

Flushing records are issued with a NAS report

Assessment

System, oil condition, and target cleanliness are evaluated

Flushing

Hot oil flushing removes contaminants, varnish, and debris

Monitoring

Particle counts are tracked in real time throughout

Reporting

Flushing records are issued with a NAS report

How It's Delivered

Cleanliness is our responsibility. Every flush is professionally monitored and measured. Delivered on site or in our workshop using certified filtration rigs.

View Datasheet

Standards & Compliance

  • ISO 9001:2015 | ISO 4406
  • NAS 1638
  • DNV GL
  • ADNOC HSE

Let's Connect

Partner with Rays Technical Services for engineering solutions that drive performance and reliability.

From technical requirements to complete flow control solutions, our team is ready to understand your needs and help you move forward with confidence.