Domande frequenti

Founded in 2000, COVNA is headquartered in Dongguan, Guangdong, China. 3 production bases and more than 100 workers. For more details please check qui.
Where is your headquarter?

Yes. We are always searching for global distributors who can be our partners to expand the local markets, and we also provide market protection, marketing and technical support for our distributors. If you are involved in the valve industry, or in relative industries which has rich customer base who will need valves, welcome to contact us and talk more details about the distributorship.
Can I be your distributor?

We have around 20 engineers from R&D, Designing, Production and QC department.
How many engineers do you have?

We have attended and visited ThaiWater 2015/2017/2018/2019, AsiaWater 2018, Water Philippines 2019, SIWW 2018, ECWATECH 2018, PCT Shanghai 2015/2016, and many industrial Exhibitions in China.
Which overseas exhibitions have you attended?

Di solito citiamo entro 12 ore dopo aver ricevuto la tua richiesta dettagliata e le tue esigenze.

Se sei molto urgente per ottenere il prezzo, chiamaci o inviaci un'e-mail in modo che considereremo la tua priorità di richiesta

When can I get the quotation?

Sì, i nostri team di vendita e ingegneri esperti conoscono profondamente il settore. E confidiamo che la loro esperienza possa aiutarti a selezionare il prodotto giusto per il tuo progetto e aiutare il tuo progetto a funzionare bene. Accolga favorevolmente tutte le inchieste da voi!

Could you help to confirm the product by our needs?

We are glad to help you to confirm the product details to ensure you order the right one. If you have any doubts about the valve type and its application, please feel free to send us an email at, we will reply to you soonest within 12 hours.
How do I make sure I order the right size?

COVNA adheres to strict quality control procedures that begin with product design and carry through to the end of the production process using state-of-the-art quality control equipment to make sure the quality of each valves appearance and pressure, sealing test are good.
What are your quality control procedures?

Yes, COVNA possesses various qualifications, including ISO9001:2005, RoHS, CE, FDA, SGS, and Explosion-proof Electrical Apparatus.
Do you have any certificates of the valves?

You can visit our factory at any time, or apply for third-party factory audit. And during the COVID-19 special period, we could provide an online video chat for you to visit our factory.
How can we do factory audit or order inspection?

Accettiamo T/T, PayPal, Western Union e carte di credito. Nel frattempo, accettiamo il pagamento del 100% prima della produzione per importi di ordine inferiori a 10.000 USD. deposito di 50% prima di produzione ed equilibrio prima della spedizione per l'importo di ordine superiore a 10,000 USD.

What is your payment term?

Sì. Tutti i prodotti regolari sono disponibili a magazzino. I tempi di consegna rapidi per il prodotto normale vanno da 1 a 3 giorni.

E per il prodotto personalizzato è di circa 7-15 giorni.

Do you have stock? And how about the customized products?

We have cooperated shipping agent and could help to arrange the shipment by sea or air or railway which help customers to reduce the trouble.
How do you ship the goods?

Per favore, non preoccupatevi. Forniamo supporto tecnico online. Le nostre vendite aiuteranno a confermare la causa del problema passo dopo passo. E poi il nostro ingegnere aiuterà a risolvere il problema.

What to do if the product breaks down in use?

Yes, we will attach the product manual when the product is shipped, so that you can use the product better.
Do you provide manual sheets?