- Description
- Warranty
- Shipping & Delivery
- Exchanges
Global O-Ring KEVN® Rubber Identification Tool
The KEVN® O-Ring Rubber Identification Tool is a practical and useful tool to distinguish between four commonly used o-ring rubber compounds:
Kalrez - Perfluoroelastomer (FFKM)
EPDM - Ethylene Propylene Rubber (EPR)
Viton - Fluorocarbon (FPM, FKM)
Nitrile - Nitrile Rubber (Buna-N)
Best used to verify an o-ring just before installing, to differentiate known o-ring materials, to check for mislabeled o-rings for sorting, and to verify new o-rings. The KEVN® is calibrated to work best with new or unused 70 durometer o-rings with cross-sections starting with .103” (2.62mm) up to .275” (6.99mm), including the standard AS568 series (100, 200, 300, & 400 series). The tool should not be used for identifying or analyzing failed, damaged, or out-of-date rings, o-rings of unknown composition, o-ring cross-sections less than .103″ (2.62mm), or greater than .275″ (6.99mm), or o-rings other than 70 durometer. It should also not be used for identifying composition of flat gasket surfaces.
How to Use
- Place o-ring on a stable surface. Hold the KEVN® vertically so that the straight edge of the sliding weight hangs out the bottom of the tube.
- Position the straight edge on the o-ring’s cross section and raise the weight all the way to the top of the tube as far as it will go.
- Release the weight and let it drop onto the o-ring; it will bounce. The height of the first bounce will rise to one of the four calibrated ranges.
A. If not satisfied with a PRM product for any reason, customers should contact PRM. Returns submitted within 30 days of the original invoice and must be in original packaging and in new condition. Please contact PRM to provide additional information regarding a return.
B. PRM Limited Warranties are applicable to PRM branded products, non-transferable, and warrant against manufacturer defects in workmanship and materials under normal use for 1 year after the date of the PRM invoice unless otherwise stated. If PRM approves the product is accepted for return during the limited warranty period, PRM may repair, replace, or refund the amount paid by the customer.
C. Non-PRM branded products retain their manufacturer's warranty. Customer should contact the manufacturer for warranty service.
D. PRM is not liable for claims arising out of product misuse, improper product selection, improper installation, and/or product modification. PRM's liability in all events is limited to the purchase price paid for the product.
The vast majority of PRM products ship directly from our facility within one business day. High value items such as blowers, pumps, and fans may have extended lead times due to global supply. Please consider contacting PRM prior to your purchase if it's necessary to know an exact delivery date and time.
IMPORTANT: All goods must be inspected immediately upon delivery. Any shipping damage, missing items, or product defects must be reported to both PRM Filtration and the shipping carrier within 24 hours of delivery. Failure to report issues within this timeframe may result in your claim being denied. Please retain all original packaging materials, as they may be required for filing a damage claim.
Product Recovery Management, Inc. Returns/Exchanges
200 20th Street
Butner, North Carolina 27509.
Do not send us a damaged or defective item for exchange prior to contacting us. We will then contact you regarding your return. We cannot accept exchanges unless we have responded to your request.
