FAQs of Water Shut Off Ball Valve

1. What media is the Water Shut Off Ball Valve suitable for?

A globe valve is mainly used for water and common fluids. It works well with drinking water, hot water, cold water, air, natural gas, and diesel oil. These are all very normal working conditions.

For special applicable media, it is necessary to customize corrosion-resistant materials, such as 316L stainless steel, Hastelloy valve body, special seals, such as PTFE, graphite seals, and other media.

For special cases, customers can tell us the type of fluid, temperature, and pressure, and the factory will make a suitable solution.

2. Do you support the full-bore design of the Water Shut Off Ball Valve?

Yes, we support full-flow designs for custom Water Shut Off Ball Valves. Full channel structure ensures that the inner diameter of the ball valve is consistent with the pipeline, so that the fluid flow is smooth, the pressure loss is small, and the small impurities are easy to pass. It is suitable for large flow or no blockage requirements. We offer full-port customization in standard sizes from DN 10 (3/8 “) to DN 150 (6”). Body materials include lead-free brass, 304/316 stainless steel, etc. For special media adaptation requirements, manufacturers can optimize the valve core and sealing structure to meet requirements.

3. Can the Water Shut Off Ball Valve be developed based on drawings?

Plumberstar manufacturers can design Water Shut Off Ball Valve drawings for customers. We make the Water Shut Off Ball Valve according to customer needs. First, we confirm details such as material, process, and production time. If the design needs changes, we update the drawings and technical details. After the customer confirms everything, we sign the contract and fix all parameters.

Next, we buy the right raw materials and make valve blanks. We check them to make sure there are no hidden defects. After that, we do rough machining and aging treatment, then finish machining to make sure key parts are accurate. Heat treatment and surface treatment are done later. Finally, the ball valve is assembled following standard rules.

If the customer provides drawings, we need CAD drawings that clearly show size, structure, pressure, and temperature limits. For important points like material and sealing type, tolerance marks are recommended. Our engineers review the drawings and working conditions, check technical difficulty, material supply time, and production ability. We usually give feedback and a first quotation within 1–3 working days.

Before delivery, each Water Shut Off Ball Valve is tested for size, pressure, and sealing to make sure there is no leakage. For small trial orders, we can test the valve together with the customer and make small improvements if needed. After testing is passed, we start mass production and control each step carefully. When production is finished, we provide inspection reports, manuals, and arrange delivery. After shipment, after-sales support is also provided.

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4. What quality tests are performed on the Water Shut Off Ball Valve?

The factory checks every batch of products in many ways. The inspection includes raw materials, machining process, finished valve performance, and packaging quality.

For the Water Shut Off Ball Valve, we first test the material. This includes checking lead content to make sure it meets the AB1953 standard, and checking key elements like chromium and nickel in stainless steel to confirm they meet requirements.

During machining, we also test accuracy. This is to make sure the surface finish is good, and that important sizes are within the required range.

For custom ball valves, special tests are very important. For high-temperature or high-pressure valves, we simulate real working conditions. The valve is tested at temperatures from -20℃ to 200℃ and pressures from 0.6 to 6.4 MPa. It is opened and closed 5,000 times to check durability and sealing. The valve must show no leakage and no abnormal wear.

For valves used with corrosive liquids, the Water Shut Off Ball Valve is soaked in the customer’s specified medium for 72 hours. After that, sealing tests are done again to confirm that the material can resist corrosion.

Before shipment, we do final batch sampling checks. If the customer asks, third-party testing companies such as SGS or TÜV can join the inspection and issue official test reports.

5. How long is the quote for the Water Shut Off Ball Valve valid?

The factory gives a price for the Water Shut Off Ball Valve.This price is valid for 30 days from the day it is sent.
During these 30 days, the price, materials, trade terms (FOB or CIF), and minimum order quantity will not change.

If the cost of main materials, such as brass, stainless steel, or PTFE seals, goes up or down by more than 5%, we will tell the customer in writing at least three working days earlier.
If shipping cost or exchange rate changes a lot (about 8% or more), we will also inform the customer. Then both sides can talk and decide whether to change the price or extend the time.
If the customer signs the contract and pays the deposit within 30 days, the price will be fixed for this order.
If no order is placed after 30 days, the price will no longer be valid. A new price will be given based on the current material cost and shipping cost.

For very large orders or long-term customers, the payment time can be extended to 45–60 days after both sides agree in writing.

6. What are the shipping ports for Water Shut Off Ball Valve?

The main shipping ports of the Water Shut Off Ball Valve are Ningbo, Shanghai, and Shenzhen. Other ports can be arranged according to customer needs. Ball valve custom order after payment, according to the production cycle delivery, we will provide a production progress tracking table.

7. Do you support long-term strategic cooperation on the Water Shut Off Ball Valve?

Of course, support long-term strategic cooperation! The advantages of cooperating with Plumberstar manufacturers include:

1. stable raw material supply channels to ensure price competitiveness.

2. Priority scheduling shortens the production cycle.

3. Regularly provide new product development information and samples.

4. Annual sales standards can enjoy rebates and free certification upgrade services.

Welcome to inquire. We offer free samples.

8. How long is the PVC Water Shut Off Ball Valve warranty?

The PVC Water Shut Off Ball Valve from Plumberstar has a one-year warranty. The warranty starts from the date the goods arrive at the customer’s place or port.

During this one year, if the valve cannot work properly because of material problems—for example, the PVC body cracks, the valve core seals age or fail, or production issues—for example, thread sizes are wrong, or the valve stem is loose—the customer can contact us with the order number and product problem proof.

We will then repair the valve for free or replace it with a new one of the same type. We also cover any necessary parts and shipping costs.

However, if the problem is caused by wrong use—like working with too high pressure or temperature, wrong installation, accidental damage, or natural wear—this is not covered by the warranty. In these cases, we can still provide paid repair and parts if the customer wants.

 

9. What is the material of the valve core and stem of the Water Shut Off Ball Valve?

The valve core and stem of the Water Shut Off Ball Valve are made of high-quality engineering plastic, PA66 reinforced with glass fiber.

For special conditions, we can use PPH or PTFE for better corrosion resistance.

The plastic parts go through anti-aging, impact resistance, and chemical immersion treatments. This makes the valve core turn smoothly 90° and keeps the valve stem stable.

The working temperature of the plastic core and stem is -10℃ to 60℃, and the pressure rating is PN10–PN16, suitable for normal use.

All plastic parts meet RoHS environmental standards. They do not release harmful substances, so they are safe for drinking water pipelines and other places where environmental safety is important.

10. What is the difference between PVC, brass, stainless steel Water Shut Off Ball Valve?

PVC, brass and stainless steel Water Shut Off Ball Valve have obvious differences in material characteristics, applicable conditions, performance and cost.

PVC water shut off Ball Valve is only suitable for civil low pressure water supply and drainage scenarios from-10 ℃ to 60℃ and pressure ≤1.6MPa, and can only adapt to non-corrosive media such as water and neutral liquid.

Brass material ball valve body for H59/H62 brass alloy, valve core and valve stem mostly 304 stainless steel, can withstand-20 ℃ to 80℃ temperature and ≤2.5MPa pressure, can adapt to a small amount of residual chlorine tap water and other slightly corrosive medium, the cost is at a moderate level.

Stainless steel ball valve is made of 304 or 316 stainless steel as the core material of valve body, valve core and valve stem, some high-end models choose 316L stainless steel, which can withstand temperatures from-40 ℃ to 150℃ and pressures ≤4.0MPa, but its cost is relatively high, and its weight is greater than the former two.