FAQ-South valve CO., LTD.-Trusted industrial valve manufacturer api, iso, ce certified south valve technology

General

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What types of valves do you mainly produce?

We mainly produce gate valves, ball valves, globe valves, check valves, butterfly valves, safety valves and so on.
What quality standards do your products meet?

We strictly follow ISO, API, ANSI, GOST, DIN, EN, GB, HG, JB, GB and other standards.
What certifications do your products have?

Our products have passed API, CE, ISO, SIL, GS, TS and other certifications.
What is the typical production cycle time for your products?

It depends on our inventory. For products that are in stock, we can fill orders within 7 days. For custom products, it usually takes 35 days, and special materials and requirements may take 40-50 days.
Do you offer customized services?

Yes, we accept customized services according to specific specifications and requirements.
How long has your company been around?

Our company was founded in 1997 and has 27 years of experience.
What are your main markets?

Our main markets include Asia, Europe, North America, South America, Africa and so on.

Product problems

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Which industries are your valves suitable for?

Our valves are widely used in petroleum, chemical, renewable energy, water supply, power, mining, shipbuilding and other industries.
What are the materials of your valves?

We offer valves in carbon steel, austenitic stainless steel, super duplex stainless steel, cast iron, ductile iron, titanium, brass and bronze, Monel, nickel-based alloy, Hastelloy, alloy steel, chrome-molybdenum steel and other materials.
What are the sizes of your valves?

We produce valves from DN10 to DN3000. For example:

Catalog

Diameters

Pressure

Gate Valve

from DN15 (1/2 inch) to DN1200 (48 inch) and larger.

from PN6 (Class 150) to PN420 (Class 2500) and higher.

Stop Valve

from DN10 (3/8 inch) to DN600 (24 inch).

From PN16 (Class 125) to PN760 (Class 4500).

Check Valve

from DN15 (1/2 inch) to DN2000 (80 inch).

from PN6 (Class 125) to PN420 (Class 2500) and higher.

Ball Valve

from DN6 (1/4 inch) to DN1500 (60 inch).

from PN6 (Class 125) to PN760 (Class 4500) and higher.

Butterfly Valve

from DN25 (1 inch) to DN3000 (120 inches) and larger.

PN2.5 (Class 125) to PN250 (Class 1500).

Safety valve (or relief valve)

from DN10 (3/8 inch) to DN250 (10 inch).

up to PN420 (Class 2500) or higher, depending on design and application.
Can I get the product catalog?

Of course, you can download it online or contact us to request a physical or documentation version.
Do you have a minimum order quantity requirement?

Our minimum order quantity is 1 piece.
Do you provide samples?

Yes, we can provide you with samples.

Warranty

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Do your products have a warranty?

Yes, our products come with a 2-year warranty, or 18 months from the time they are installed in the pipe, whichever comes first.
How to deal with product problems during the warranty period?

Please contact our after-sales service team. We will deal with your problem within 24 hours on weekdays.
What happens after the warranty period?

After the warranty period, we still provide repair and replacement parts services, but there may be associated costs.
In what cases is the damage not covered by the warranty?

Damage due to misuse, improper use or under abnormal operating conditions is not covered by the warranty.

Service

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How long does it take to get a response after sending an inquiry?

Usually, we respond within 30 minutes of receiving an inquiry. In principle, we will respond to enquiries on the same day. For special customization or other specific requests, we will reply within two days. We provide you with the most competitive quotation (including materials, price, torque, weight), valve drawings, certification certificates, etc.
Do you offer installation services?

Yes, if you need installation services, please contact the after-sales team to consult your local representative. Our agents are professionally trained and certified to provide professional installation services.
How do I contact the after-sales service team?

You can contact our after-sales team by phone: +86 17357466831 or email: nafa@china-nfv.com.
What is the usual maintenance cycle?

After receiving the goods, the usual maintenance cycle is 7 working days.
Where can I find the user and maintenance manual?

All products come with user and maintenance manuals. You can also download from our website or request paper and electronic versions from us.

Pay

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What payment methods do you accept?

We accept bank transfers, credit cards, Western Union, Alipay and wechat Pay.
Do you accept payment by L/C?

For specific orders and customers, we accept payment by L/C at sight.
Are there any discounts for large orders?

Yes, we offer specific discounts for large orders.

Transport

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Which logistics companies do you usually use?

First, we ask the customer if they have a preferred shipping agent. If not, we will provide a number of well-known logistics company quotes for customers to choose.
What is the usual shipping cycle?

Usually our shipping cycle is 48 hours.
Can I track my order?

Of course, we will keep track of the logistics information and provide you with updates.
How is the transportation cost calculated?

Shipping costs are determined by the order's weight, volume, destination and selected mode of transportation.
What trade terms are available?

EXW, FCA, FOB, CFR, CIF, DDU, DDP, etc.
How is the product packaged?

The products are packed in fumigated wooden cases or plywood cases, and the samples are packed in cartons.