FAQs
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Company FAQ
Product FAQ

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What is your terms of payment if we work together?

Our Vacuum Flanges and fittings payment way are including T/T, L/C,DP, Cash,etc, For small amount ≤5000$, 100% TT in advance; amount ≥5000$, , 30% TT in advance, 70% TT balance before shipment.Price terms are EXW, FOB, CIF, DDU,DDP, welcome to contact us for best offer of vaccum components, vaccum fittings and flanges, vacuum bellows,vacuum valves.

Can I get some vacuum components samples? Is it free or extra cost?

Yes, we can provide free samples of vauum fittings, vacuum flanges, vacuum bellows, centering rings, but the freight should be borned by customer side..

What's your vacuum product's application?

We supply high-quality vacuum components, vacuum fittings, and vacuum chambers that are mainly applied in HV/UHV(

Do you have customization and OEM service?

We can produce the standard model sizes vacuum components including CF, KF, ISO, NW, etc. Meanwhile, our customization service is also good enough to accommodate your individual needs.

What is the warranty scope for your vacuum accessories?

Our vacuum components ,vacuum fittings and vacuum flanges quality assurance of the sold products complies with the national warranty scope. Usually 6 months after goods shipped, If there are customers with special needs, please communicate in detail with customer service.

What is the delivery time for vacuum components, vacuum flanges, vacuum bellows?

The delivery time is about a week for stock goods. In case of urgent customer needs, we can contact customer service for expedited processing.The delivery time for products without inventory is not fixed, Please consult customer service for detailed information.

What quality standard do you follow?

Flange system KF (ISO-KF) ISO (ISO-K, ISO-F) CF QCF (Quick-CF) Norminal size [mm] DN10 to DN50 (3/8" to 2") DN63 to DN630 (2 1/2" to 24") DN10 to DN400 (3/8" to 16") DN16 to DN100 (1/2" to 4") Standard DIN 28403 / ISO 2861 DIN 28404 / ISO1609 ISO 3669-2 ISO 3669-2 Vacuum components KF components ISO components CF components QCF components We are ISO9001:2015 certified factory. The whole operation is strictly following the standard. Our QC department inspects every product to ensure all the products are qualified before sending out of the factory.

What is your packing way for vacuum components?

We have the usual export packing way for vacuum ISO-KF components, and vacuum accessories, with a thick plastic bag for each product, and hard carton boxes, and then put into wooden boxes, We also supply OEM packing requirements, label stick, laser printing service, you can tell your special request to us. Pls, see below some packing pictures.

What are your main vacuum products?

Our main products are vacuum flanges and fittings, vacuum bellows, vacuum valves, vacuum adapters, vacuum clamps, vacuum centering rings,  vacuum pumps, accessories of Vacuum chamber , non-standard customized products, etc. 

How to get a quick quotation for vacuum fittings, vacuum valves, vacuum components from us?

Direct send your inquiry to our email: ruijiavacuum@outlook.com, or visit our website to send inquiry online. Standard products: Please provide us with product name, size, material, order quantity,, discharge location, and price terms,etc. Customized products: Please offer us the material type, drawings format in PDF/CAD/PRT/step, order quantity, delivery time, your desired discharge location, and payment method. Notes: Your inquiry with pictures will be very helpful for us to handle your case quickly.