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Technical Center

Selection guides, installation know-how, troubleshooting and answers from 37 years of refrigeration engineering

Resource Library

Practical, field-oriented technical resources

SEL

Selection Guides

Choose the right filter drier, oil separator, accumulator or heat exchanger by refrigerant, line size and working pressure.

Filter drier selection → Oil separator selection →
INS

Installation & Maintenance

Correct brazing, evacuation and replacement practices that protect the compressor and extend component life.

Liquid-line basics → Receiver sizing →
TRB

Troubleshooting

Diagnose ice blockage, acid buildup, liquid slugging and copper-tube cracking with field-proven procedures.

Copper SCC case study → Accumulator role →
OEM

OEM / ODM

Private-label, custom connections, non-standard pressure ratings and packaging for compressor makers and exporters.

Custom filter driers → Condensing units →
REF

Refrigerant Know-How

Compatibility across R22, R134a, R410A, R404A, R507 and newer low-GWP refrigerants, plus desiccants explained.

Molecular sieve → Bi-directional heat pump →
FAQ

Quick Answers

MOQ, samples, lead time, certification and export logistics - the questions buyers ask most, answered plainly.

Contact an engineer → All products →

How to Select a Filter Drier

A four-step method our engineers use every day

1

Match the refrigerant and line

Confirm refrigerant type, liquid-line or suction-line position, and connection diameter before selecting a model.

2

Check pressure and capacity

Verify maximum working pressure (e.g. 2.9-4.5 MPa) and that the rated capacity covers the system load with margin.

3

Pick the right desiccants

Use molecular sieve plus activated alumina for water and acid; choose solid-core for high contamination and bead-type for capacity.

4

Install and evacuate correctly

Braze with nitrogen flow, evacuate to a deep vacuum, and never leave a system open to moist air longer than necessary.

Frequently Asked Questions

How do I select the correct filter drier size?
Match the connection to your line diameter and ensure the drier's rated capacity meets or exceeds the system capacity, allowing a safety margin for long lines or high moisture loads. Our engineers can size it for you from the refrigerant, tonnage and line length.
Which refrigerants are your components compatible with?
Most Kilterra filter driers, separators and heat exchangers support R22, R134a, R410A, R404A, R507 and many low-GWP alternatives. Compatibility is listed on each product page and datasheet.
What is your MOQ and sample policy?
MOQ varies by series (commonly 20-50 pcs); samples can be prepared within 72 hours so you can validate fit and performance before volume orders. Contact us with your target model and quantity.
Do you provide OEM and private-label service?
Yes. We offer OEM/ODM including custom connections, pressure ratings, logos, packaging and non-standard designs for compressor manufacturers, brands and export projects.
Which certifications do you hold?
Production follows ISO9001:2015, and products carry CE and RoHS compliance. We are also a National High-Tech Enterprise and participate in national-standard revision for molecular-sieve filters.
How do you handle export and delivery?
We provide one-stop export documentation, customs declaration and cross-border logistics across Southeast Asia, the Middle East, Europe and Africa, with full traceability on every shipment.

Need Customization or Bulk Supply?

Kilterra delivers professional refrigeration component solutions with OEM/ODM support.

Request a Quote Contact Our Engineers