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3PC check valve, often used in fluid dynamics and piping systems, is designed to prevent the backflow of fluid through a pipe. The "3PC" typically refers to a three-piece design, which allows for easier maintenance and cleaning by disassembling the valve into three separate components. These components usually include the body, the bonnet, and the trim, which contains the internal parts like the seat, disc, and spring.
The primary function of a check valve is to ensure that fluid flows in only one direction, automatically preventing reverse flow when the fluid in the line reverses direction. It's a type of non-return valve that operates by allowing substances (liquids or gases) to flow through it in only one direction.
Check valves are commonly used in a variety of applications, including water and wastewater, oil and gas industries, and in manufacturing processes where the prevention of backflow is critical to maintaining system integrity and safety. The 3PC check valve design specifically provides an advantage in environments where regular maintenance and cleaning are necessary, as the three-piece configuration simplifies the process of accessing internal components.
| Size | ΦD | W | S |
| 1/2" | 15.0 | 76.0 | 27.0 |
| 3/4" | 20.0 | 80.0 | 33.0 |
| 1" | 25.0 | 93.0 | 40.0 |
| 11/4" | 32.0 | 103.0 | 48.5 |
| 11/2" | 38.0 | 121.0 | 55.0 |
| 2" | 50.0 | 130.0 | 76.0 |
| NO | PART | MATERIAL |
| 1 | Nut | A2-70 |
| 2 | Washer | SS304 |
| 3 | Bonnet | CF8/CF8M |
| 4 | Packing | PTFE |
| 5 | Body | CF8/CF8M |
| 6 | Spring | SS304/SS316 |
| 7 | Disc | CF8/CF8M |
| 8 | Bonnet | CF8/CF8M |
| 9 | Bolts | ASTM A193 B8 |
| QUESTION? | ANSWER |
| 1. Are you a factory? | Yes, Welflow is a factory located in Wenzhou, Zhejiang, China. |
| 2. Do you have any requirements of MOQ? | No limited to MOQ but the difference in unit price. |
| 3. Payment Terms | Typically 30% T/T as deposit, 70% against copy of BL/ Or balance L/C at sight. |
| 4. Nearly Sea Port | Ningbo or Shanghai Port |
| 5. Terms: | FOB Ningbo/Shanghai, CIF, FCA, etc. |
| 6. Delivery Time: | Typically, it is 30-35 days after receiving the deposit payment. However, almost all of the items we have stock in 304. |
| 7. Could you accept color Marks or Color Boxes? | Yes, both are acceptable; we have experience with them. |
| 8. Could you accept marking our logo on the products? | Yes, on the handle or the bodies, both are okay. 1. Print on the Handle (NO MOQ requirements) 2. Laser Marking. (NO MOQ requirements) 3. Carvings(NO MOQ requirements) 4. Casting on the bodies (Has MOQ requirements) |
| 9. Do you have Material Certificates? | Yes, if required, Each item will be laser marked with Heat NO and the material certificates. |
| 10. How do you deal with customer complaints, such as quality issues? | This is an issue we take very seriously. As long as it is confirmed to be a quality issue, we will take full responsibility. 1. exchange or refund is acceptable. It mainly depends on how you need to deal with it. |
At Welflow Valve, we're dedicated to providing you with high-quality stainless steel valves and fittings. We understand that as a business owner or manager, you value reliability and excellent service, which is why we prioritize the completeness of our supply chain.
Our products, including ball valves, check valves, gate valves, globe valves, thread fittings, and flanges, are competitively priced without compromising quality. We take great care to ensure our product meets high quality and performance standards.
One of our key strengths is our supply chain, built on trust and long-term partnerships. We work closely with our manufacturing agents and logistics partners to ensure that our products reach you on time and in perfect condition.
Our team of experts is always available to provide technical support and help you choose the best product for your specific needs. We understand that every business is unique and are committed to providing personalized service that meets your needs.
BALL VALVES BY BODY STRUCTURE
The body is formed from a single body piece in a one-piece ball valve. The ball is permanently fixed within the valve body, and the ends are threaded or welded. One-piece ball valves are compact and cost-effective, commonly used in applications with lower pressure and smaller sizes.
This type of ball valve consists of two separate pieces connected with thread or bolts. The body is divided into two halves, allowing easy access to the internal components, including the ball and seats. Two-piece ball valves are commonly used in applications requiring regular maintenance or inspection.
Three-piece ball valves are constructed with three separate pieces: a body and two end caps. The end caps are connected to the body using bolts, allowing easy disassembly and maintenance. This ball valve type offers greater flexibility for repairing or replacing internal components.
