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OEM, ODM & Private-Label Mechanical Seals

Your manufacturing partner for pump mechanical seals — built in-house to your spec, your brand and your volumes.

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At a glance

  • 01Private label
  • 02Build-to-print
  • 03ODM design
  • 04Reverse engineering
  • 05Low MOQ

Who we are

A manufacturer, not a middleman

Cowseal designs and machines mechanical seals in-house in Ningbo, China. We supply under our own brand and as an OEM/ODM and private-label partner for distributors, pump builders and maintenance suppliers worldwide — so you get manufacturer pricing, control of the spec, and a single accountable source.

Programs

Three ways to work with us

For distributors — private label

We supply seals unbranded or under your label and packaging, so you carry a full mechanical-seal line without holding a factory. Match a competitor’s range or fill the gaps in yours.

For OEMs — build-to-print

Send a drawing or a sample and we build to print at production volume — the same fit, faces and tolerances, batch after batch, as a reliable second source or a cost-down.

ODM — design with us

Have a sealing problem, not a drawing? Our engineers select the arrangement, faces, balance and flush plan for the duty and build the seal from there.

Capabilities

Manufacturing capabilities

Machining
In-house CNC turning and grinding for faces, sleeves, glands and hardware.
Materials
SiC, tungsten carbide, carbon, alumina; FFKM, FKM, EPDM, PTFE.
Minimums
Quantities that work for a distributor or a single maintenance order.
Build from
Your drawing, an OEM part number, or a physical sample.
Standards
API 682, ISO 3069, EN 12756, DIN 24960 where the spec requires.

Process

How it works

  1. Send the seal drawing, part number or sample

    An OEM part number, a drawing or a sample of the old seal.

  2. We confirm and quote

    We confirm the fit, faces and materials and quote.

  3. We machine, inspect and ship

    Under your brand if you want.

See our full seal range and solutions by application.

Become a Cowseal OEM or Private-Label Partner

Tell us the brands and ranges you need to cover. We’ll quote a program built to your spec, your label and your volumes.

Request a quote →All seal types