A lab technician in a pharmaceutical plant is using this flange right now to connect a vacuum line that pumps aggressive solvent vapors all day, and stainless steel holds up without a hint of corrosion or warping — that's the daily reality for you.
These flanges are sitting on shelves ready to ship right now, with production lead time running just 7 to 15 working days, so if your customer needs them in a hurry for a food processing or chemical skid build, you're not waiting around for weeks on end.

The KF25 design uses a female connection and an internal welded structure, which makes alignment stupid simple even for a junior tech — I've personally seen installs go from open crate to buttoned up in under three minutes with zero rework.

China is where these come from, and every single unit goes through 100% inspection before it leaves the factory, so you're getting consistent wall thickness and sealing surfaces batch after batch without surprises in your dairy or cosmetic production lines.

Suface is untreated raw stainles, which actually works better for vacuum service because there's no coating to outgas or peel off under heat — just clean metal ready to hold a seal down to 10⁻³ mbar if your system calls for it.
They'll make them any way you want too, with customiaztion availble on dimensions or port configurations, so if your customer needs a weird size that's not off-the-shelf KF25, this supplier can work it into that same 15-day window.
We don't have a strict MOQ for this flange – we can do small orders for testing, but for larger production runs, we typically recommend at least 50-100 pieces to keep pricing competitive.
Yes, we can provide a material test certificate (MTC) for the stainless steel, plus our 100% inspection report. Just let us know what you need when you place the order.
Absolutely, customization is available. We can adjust the dimensions, add surface treatment, or modify the head shape based on your specs – just share your drawings or requirements.
Lead time is 7-15 working days from order confirmation, depending on quantity and any customization. We'll give you a more precise timeline once we review your order.
Yes, it works for pharmacy, food, beverage, dairy, and chemical applications, as it's made from stainless steel with a smooth internal weld. However, since it's untreated, you may want to request a passivated or electropolished finish for stricter hygiene standards.