- No. 258, Shabei Road, Longwan District, Wenzhou City, Zhejiang Province
1.1 This Return & Refund Policy applies only to our export orders of vacuum fittings. All returns must be applied for in advance and an approved RMA (Return Material Authorization) number must be obtained from our company. Our warehouse reserves the right to reject any returned parcel without an RMA number and refuse warehousing. All freight losses incurred shall be borne by the Buyer.
1.2 Custom parts, drawing-machined parts, pipes cut to the Buyer's specified dimensions, non-standard special-material items, and products modified by machining or welding: returns for non-quality issues are not acceptable and shall be deemed Final Sale.
1.3 Return requests fall into two categories:
① Seller's liability (manufacturing defects, wrong model or specification shipped);
② Buyer's liability (wrong specification selected by Buyer, project cancellation, no longer requiring the goods). Cost allocation rules are completely different for the two categories.
Step1: After discovering the problem, the Buyer shall submit a written return application via email within 7 calendar days upon receipt of goods, providing order number, product model, quantity, problem description, photo and video evidence.
Step2: We review the application to verify return eligibility. If approved, an RMA number will be issued together with the return address and packaging requirements.
Step3: The Buyer shall pack the goods as required and clearly mark the RMA number on the outer package.
Step4: Goods are shipped back to our warehouse for inspection upon arrival.
Step5: After inspection, replacement, repair or refund will be arranged. Refunds will be returned to the original payment account, with a processing period of 15–30 working days after passing inspection.
For cases listed below, round-trip freight and inspection fees shall be borne by us:
3.1 Wrong shipment: Model, specification, standard (KF/CF), material or quantity inconsistent with the PI / order.
3.2 Original manufacturing defects: Material not conforming to the material certificate, out-of-tolerance dimensions, defective welds, machining flaws on sealing surfaces (excluding dents from transit or damage caused by the Buyer's usage).
3.3 Undetected factory defects confirmed by both parties as our manufacturing responsibility.
Remedies (the Seller has priority to select one): Free replacement, factory repair, or partial refund for defective items.
Return requests caused by the Buyer's incorrect selection, project changes, procurement miscalculation, or mismatched overseas working conditions / standard requirements are subject to prior written RMA approval from our side. Not all standard stock items qualify for return; we reserve the right to evaluate and decide whether to accept the return application.
4.1 Mandatory product acceptance criteria:
Items must be brand new and unused;
vacuum sealing surfaces free of scratches, dents and rust;
no welding, grinding or machining alterations;
original packaging and protective film must remain intact. We reserve the right to reject returns if any damage or installation/usage traces are found on products.
4.2 Cost terms: The Buyer shall bear all international freight in both directions, as well as all customs clearance charges, duties, warehousing fees and other related costs arising at destination and for return shipment. A restocking fee of 15%–25% of the total goods value will be charged.
4.3 Refund will be processed only after goods are received and pass quality inspection at our factory. All above-mentioned expenses will be deducted before refund. If product damage or sealing surface defects are identified during re-inspection, corresponding goods value will be deducted according to the severity of damage; full refund may be denied for serious damage.
✅ Custom drawing parts, special-material items, cut-to-length pipes and welded assemblies: returns are not accepted once production commences.
✅ Products that have been installed, used, welded, ground, or modified on knife edges / O-ring grooves.
✅ Goods suffering rust, dents, scratches or contamination due to improper storage at the Buyer's warehouse. Vacuum sealing surfaces are highly sensitive and damaged items cannot be resold.
✅ Return requests submitted after the 7-day objection period upon goods receipt.
✅ Cargo damage arising during transportation (claims shall be filed against the carrier / insurer, not the Seller).
✅ Wrong model ordered by the Buyer after custom fabrication has been completed.
✅ Sample orders: samples are generally non-returnable unless factory manufacturing defects exist.
✅ Products processed or surface-treated by third parties.
Once returned goods arrive at our factory, we will conduct re-inspection covering appearance, dimensions, sealing surfaces and material, and issue an inspection report. The inspection result shall serve as the basis for judging refund or exchange eligibility. If the Buyer disagrees with the re-inspection result, both parties may arrange testing by an authorized third-party laboratory. The testing cost shall be borne by the losing party.
Warranty for standard vacuum fittings: 12-month warranty from factory shipment, covering only original manufacturing defects. Not covered: transit damage, improper installation, medium corrosion, sealing surface wear caused by service environment, and man-made damage. Warranty does not equal unconditional return. Repair or component replacement is prioritized over full order refund.
Freight, insurance premiums, customs clearance fees and duties are generally non-refundable, except for wrong shipments attributable to the Seller. Refunds do not cover the Buyer's labor costs, downtime losses or indirect losses (lost profits), unless otherwise agreed in the contract.
Any dispute arising from delivery, return or product quality shall first be settled through friendly negotiation. If negotiation fails, the dispute shall be submitted to arbitration at the Seller's location, governed by the laws of the People's Republic of China.
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