Frequently Asked Questions

We supply both. Compatible parts are dimensionally identical to OEM, made from the same grade materials and tested to OEM pressure ratings — at a fraction of the OEM price. Genuine OEM parts are available on request.

Check the model number on your pump nameplate (e.g. LMI A751-117). Send it to us and we confirm the correct diaphragm, valve cartridge or rebuild kit within one business day.

One piece. We welcome sample orders so you can verify fit and quality before committing to volume.

LMI, ProMinent, SEKO, Milton Roy, Pulsafeeder, Walchem and most other major metering and dosing pump brands. If you do not see your brand, ask — we can source most models.

In-stock parts dispatch within 1–3 business days. Express courier delivery to most countries takes 3–7 days, with tracking on every order.

Yes. We structure volume pricing and annual supply contracts for water treatment plants, chemical plants and maintenance contractors — see our Bulk Supply service.

Diaphragms typically last 6–12 months depending on chemical and duty cycle; valve cartridges similar. A scheduled PMK rebuild once or twice a year keeps dosing accuracy within spec.

Yes. Describe the symptom — no output, low pressure, inaccurate dosing — and our technical support will guide you to the likely cause and the right replacement part.