Valve Warranty and After-Sales Service: Importer Checklist

A useful valve warranty is a written allocation of responsibilities, not a broad promise of “zero leakage” or lifetime performance. Buyers should agree on the covered equipment, start date, duration, exclusions, evidence, remedy, freight responsibility and claim process before placing the order.

Define the warranty start and end events

State whether the period runs from shipment, delivery, commissioning or another documented event, and include an outside expiry date if installation may be delayed. The commercial contract and purchase order should use the same wording.

Identify exactly what is covered

List valve tags, supplied actuators and accessories, manufacturing defects, material nonconformance and failure to meet agreed factory tests. Clarify whether labor, travel, removal, reinstallation, consequential loss, taxes and freight are included or excluded.

Separate warranty from process suitability

A valve can be manufactured correctly yet fail if the selected materials, pressure-temperature rating, actuator or installation are unsuitable. Record the process fluid, operating envelope and design assumptions so responsibility can be assessed fairly.

Common exclusions to review

Typical exclusions may include incorrect storage, installation damage, operation outside rated limits, contaminated media, normal wear, unauthorized repair and failure to maintain packing or sealant. Exclusions should be specific and reasonable, not an unrestricted escape clause.

Evidence for a claim

Preserve the valve tag and serial number, purchase order, installation date, service conditions, photographs, video, operating history and any leak or functional test results. Do not dismantle a disputed valve until the parties agree how evidence will be preserved.

A practical claim workflow

The supplier should acknowledge the claim, request defined evidence, conduct a technical review, agree on immediate containment and issue a written disposition. The disposition may include troubleshooting, parts, repair, replacement, credit or a joint inspection depending on cause and contract.

Root-cause and corrective action

For a significant or repeated failure, request a documented root-cause analysis that distinguishes design, material, manufacturing, assembly, testing, storage, installation and operation. Corrective action should identify affected lots and how recurrence will be prevented.

Spare-parts support

Confirm the recommended commissioning and operating spares, part numbers, interchangeability, shelf life and expected supply route. Critical projects may need dedicated spares shipped with the valves rather than relying on an assumed future stock position.

Remote and field support

Agree on support hours, language, response contact and the conditions for remote or site assistance. Field attendance can involve visas, site access, safety induction, travel cost and local labor; allocate these responsibilities in advance.

Factory documentation that reduces disputes

Retain approved drawings and data sheets, material certificates, pressure-test records, functional-test results, calibration records, inspection release and preservation instructions. Traceable records make a later technical review faster and more objective.

Questions to ask before purchase

Ask for the actual warranty clause, exclusions, claim form, escalation contact, available spare-parts list, evidence of similar corrective actions, and responsibility for freight and site labor. Avoid relying on unrecorded sales assurances.

Wofer warranty confirmation

Warranty scope and service commitments should be confirmed on the quotation and order acknowledgement for the specific valves. Contact Wofer with the tag list, service conditions and project requirements to obtain written terms applicable to that order.