FAQs of Water Shut Off Ball Valve

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

The applicable medium for the globe valve is primarily fluid, such as drinking water, domestic hot water, industrial cold water, mild corrosive chemical fluids, compressed air, natural gas, diesel oil/kerosene, among others. 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. If there are special media adaptation requirements, specific parameters can be provided by the factory for customized solutions.

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 or samples provided by the customer?

Plumberstar manufacturers can design Water Shut Off Ball Valve drawings for customers. According to customer requirements, customize the scheme, clarify the details of materials, processes, construction period, etc.; if the design needs to be adjusted, the revised drawings and technical specifications will be issued, and the formal contract will be signed after confirmation with the customer, and the scheme parameters will be locked. Raw materials corresponding to the Water Shut Off Ball Valve are purchased to make blanks, and internal defects are eliminated through nondestructive testing; then the allowance is removed through rough machining and aging treatment, and then the precision of key parts is ensured through finish machining; then heat treatment and surface treatment are carried out on the Water Shut Off Ball Valve components, and finally the Ball Valve assembly is completed according to the assembly standard.

If the customer provides drawings of the Water Shut Off Ball Valve, complete engineering drawings in CAD format shall be included to specify size parameters, structural requirements, pressure, and temperature ratings of the Ball Valve. For core parameters such as Water Shut Off Ball Valve material preference and sealing method, it is recommended to attach tolerance marks on an industry standard basis. The factory technical team checks the drawings and working conditions provided by the customer, clarifies the core requirements, evaluates the technical difficulty and production feasibility, judges the procurement cycle of special materials for Water Shut Off Ball Valve, and the processing capacity of complex structures. The evaluation results and preliminary quotation will be fed back within 1-3 working days.

The manufacturer finally carries out size review, pressure test, working condition simulation test, etc. on the Water Shut Off Ball Valve to confirm that there is no leakage and the performance meets the standard; during small batch trial production, the manufacturer can cooperate with the customer to carry out field working condition Water Shut Off Ball Valve test, and fine-tune and optimize according to feedback. Start batch production after trial production is qualified, monitor the production process to avoid deviation; complete with an inspection report, instruction manual, and other materials of Water Shut Off Ball Valve after production, deliver goods according to the agreed mode, and provide after-sales docking information synchronously.

4. What quality tests are performed on the Water Shut Off Ball Valve before it leaves the factory?

The factory will carry out multi-dimensional quality inspection on each batch of products, covering raw materials, processing, finished product performance, and packaging.

Water Shut Off Ball Valve will be tested for material composition, whether lead content meets AB1953 standard, stainless steel chromium/nickel content, and other key indicators meet standards.

Accuracy testing is also performed during ball valve machining to check whether surface treatment and critical size accuracy are up to standard.

For custom ball valve the most important condition simulation test, for high temperature/high pressure custom valve, in the simulation of operating conditions (temperature- 20℃~200℃, pressure 0.6~6.4MPa), continuous opening and closing 5000 times, test the durability and sealing stability of the ball valve, to ensure no wear, no leakage; for the ball valve for corrosive medium, soak the Water Shut Off Ball Valve in the specified medium of the customer for 72 hours, take it out and conduct sealing performance test to verify the corrosion resistance of the material.

Finally, a batch sampling review shall be carried out before delivery. If required by customers, third-party testing organizations (SGS, TUV) can be invited to witness the testing process and issue test reports.

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

The factory’s quotation for the Water Shut Off Ball Valve is valid for 30 calendar days from the date of quotation.

During the validity period of quotation, we will strictly follow the price, material specifications, trade terms (such as FOB/CIF) and MOQ marked on the quotation sheet; if the price fluctuation of core raw materials (such as copper, stainless steel, PTFE seals) exceeds ±5%, or there is a significant adjustment in international logistics freight and exchange rate (fluctuation ≥8%), we will notify the customer in writing three working days in advance to negotiate adjustment of quotation or extension of validity period.

If the customer signs a formal purchase contract and pays the advance payment within the validity period of the quotation, the quotation will be locked for a long time; if the order is not placed beyond the validity period, the original quotation will automatically become invalid, and a new quotation will be issued after re-accounting the current raw material price, logistics cost and market situation. For large orders (single batch amount ≥ USD 500,000) or long-term strategic cooperation customers, the validity period of the quotation can be extended to 45-60 days through negotiation, subject to the written agreement of both parties.

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

The main shipping ports of 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?

PVC Water Shut Off Ball Valve manufactured by Plumberstar is warranted for one year from the date of delivery of the goods to the destination (or port) specified by the customer. During the warranty period, if the product cannot be used normally due to its own material defects, such as PVC valve body cracking, aging failure of valve core seals or production process problems, such as interface thread accuracy is not up to standard, valve stem connection is loose, customers can apply to us for after-sales service with order number and product failure certificate, we will provide free maintenance services for customers or replace new products with the same specifications, and bear relevant accessories and logistics costs; However, faults caused by improper use by customers (such as operation under overpressure and overtemperature conditions, installation and operation errors), artificial damage or natural loss are not within the scope of warranty. In such cases, paid maintenance and parts supply services can be provided.

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

The Water Shut Off Ball Valve’s valve core and stem are made of high-quality engineering plastics, specifically PA66 reinforced with glass fiber. In certain special working conditions, we will select PPH or PTFE materials with enhanced corrosion resistance. This kind of plastic material has undergone multiple process treatments such as anti-aging, impact resistance, and medium immersion resistance, which can ensure the smoothness of valve core 90° rotation and the stability of valve stem transmission. The applicable temperature range of the plastic valve core and valve stem is-10 ℃ to 60℃, and the pressure grade is suitable for PN10-PN16 conventional working conditions. And all plastic parts are in line with RoHS environmental protection standards, no harmful substances precipitate, suitable for drinking water pipelines and other scenes with high environmental protection requirements.

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.