Welch CRVpro Series

Precision Plus is your trusted source for high-quality OEM-equivalent spare parts for Welch CRVpro rotary vane vacuum pumps. Designed to meet or exceed original equipment manufacturer specifications, our replacement components—including vanes, seals, filters, and oil—ensure optimal performance and extended service life for your vacuum systems. The Welch CRVpro Series is renowned for its robust two-stage rotary vane design, offering superior reliability and efficiency in laboratory and industrial applications such as freeze drying, vacuum ovens, glove boxes, and backing turbo molecular pumps. With features like forced oil lubrication, gas ballast valves, anti-suckback protection, and thermal overload safeguards, CRVpro pumps—such as the CRVpro 8 and CRVpro 16—deliver cooler operation, reduced oil consumption, and enhanced chemical resistance. At Precision Plus, we provide cost-effective, precision-engineered alternatives to OEM parts, backed by expert support and fast shipping. Whether you're maintaining a single pump or managing a fleet, trust Precision Plus to keep your Welch CRVpro equipment running at peak performance.