Extend the Life of Your Cylinders. Ensure Sample Integrity.

At Welker, we understand how critical your sample cylinders are to the accuracy and reliability of your analysis. Over time, even high-quality cylinders can degrade, introducing risk to your operations, compliance, and data integrity.

That’s why Welker offers a Sample Cylinder Maintenance Program designed to help you maximize the life of your assets, reduce operational downtime, and ensure safe, representative sampling—every time.

 

Routine maintenance isn’t optional—it’s essential.

Here's Why:

✅ Less Downtime
Proactive service prevents leaks, failures, and emergency repairs—keeping your operations running smoothly.

✅ More Accurate Sampling
Clean, tested cylinders protect sample integrity and ensure precise, repeatable results.

✅ Regulatory Confidence
Stay compliant with DOT, API, and ASTM standards by keeping your cylinders in spec.

 

Our comprehensive maintenance program offers evaluation, cleaning, refurbishing, and testing for your sample cylinders—regardless of brand.

 

Services include:

• Visual inspection for corrosion, pitting, thread damage, and leaks
• Internal and external cleaning using industry-approved methods
• O-ring and valve replacement with OEM or compatible components
• Pressure and leak testing to ensure DOT/transport compliance
• Re-assembly and lubrication of all moving components
• Optional cylinder re-certification for DOT transport
• Certificate of service issued with each cylinder

 

✅ Why Choose Welker?

Decades of Sampling Expertise

With over 65 years of experience in sample conditioning and handling, Welker is a trusted authority in sampling system integrity.

Brand-Agnostic Maintenance

Whether it’s a Welker cylinder or from another manufacturer, we can service it to our high standards.

Extend Equipment Life

Avoid premature replacements and reduce total ownership cost through regular maintenance.

Ensure Safety & Compliance

Maintain DOT and industry regulatory standards with properly maintained pressure vessels.

Protect Sample Integrity

Dirty or damaged cylinders can skew your analysis. Keep your data accurate and actionable.

 

When Should You Service Your Cylinders
Regular maintenance is recommended:

Annually for standard applications
Semi-annually for aggressive or corrosive sampling environments
Immediately if a cylinder shows signs of leaking, corrosion, or operational issues

 

How It Works

Submit a Service Request
Complete the short form below to get started.
Send Your Cylinders
Ship your cylinders to Welker’s certified service facility.
We Inspect and Service
Our experts will evaluate and perform all necessary maintenance.
Receive Restored Cylinders
Your cylinders are returned in optimal condition, ready for use.

 

Ready to Get Started

Fill out the form below to request a quote or schedule service.
Questions? Contact our service team at [email/phone].