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Help CenterManual Plunger Valve 4000 PSI 304 Stainless Steel Factory Tested 1 Year Warranty for Water
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Shanghai Zhibang Valve Manufacture Co., Ltd., a professional manufacturer established in 2016, presents our Manual Plunger Valve 4000 PSI 304 Stainless Steel — a high-performance solution engineered for water applications. Each valve is factory-tested to ensure reliable operation under extreme pressure, backed by a 1-year warranty and manufactured under ISO9001 quality management system. With an annual export value of US$1-1.5 million, we serve global markets including North America, Europe, and Asia, delivering valves that combine durability, precision, and value.
This manual plunger valve is designed for high-pressure water systems where safety and longevity are critical. The 304 stainless steel body offers excellent corrosion resistance, while the plunger mechanism provides smooth, positive shut-off and flow control. Factory testing at 6000 PSI (1.5 times rated pressure) ensures each unit meets stringent performance standards before shipment. Below are key technical specifications and benefits.
| Parameter | Specification |
|---|---|
| Body Material | 304 Stainless Steel |
| Pressure Rating | 4000 PSI (27.6 MPa) |
| Test Pressure | 6000 PSI (41.4 MPa) – factory hydrostatic test |
| Valve Type | Manual Plunger Valve |
| Connection Type | Threaded NPT (optional flanged – available upon request) |
| Seal Material | PTFE / NBR (customizable) |
| Temperature Range | -20°C to 120°C (depending on seal) |
| Warranty | 1 Year |
Key Features and Benefits:
- High Pressure Capability: Rated for 4000 PSI, ideal for water jetting, hydraulic systems, and industrial cleaning equipment.
- Corrosion Resistant 304 Stainless Steel: Ensures long service life in water and mild chemical environments, reducing maintenance costs.
- Factory Tested Reliability: Every valve undergoes hydrostatic testing at 1.5x rated pressure, guaranteeing leak-free performance.
- Manual Plunger Design: Simple, robust mechanism allows precise flow control and quick shut-off without complex actuators.
- 1-Year Warranty: Backed by manufacturer’s commitment to quality, providing peace of mind for your investment.
- ISO9001 Certified Production: Manufactured in a facility with ISO9001 quality management, ensuring consistent product quality.
- Versatile Connection Options: Standard NPT threaded ends; flanged versions available on request to fit various piping systems.
- Customizable Seal Materials: Choose PTFE for high-temperature or NBR for oil resistance – tailored to your application.
This manual plunger valve is widely used in water treatment, pressure washing, irrigation, and industrial fluid handling. The 304 stainless steel construction resists rust and scaling, while the plunger design minimizes pressure drop and provides bubble-tight sealing. Compared to traditional ball valves, plunger valves offer better throttling capability and longer cycle life under high-pressure conditions.
Trust and Credibility: Shanghai Zhibang Valve Manufacture Co., Ltd. has been a reliable valve manufacturer since 2016, with an annual export value exceeding US$1 million. Our products are shipped to major ports including Shanghai, Guangzhou, Hong Kong, and Beijing, serving markets across North America, South America, Europe, Asia, Africa, and Oceania. We are ISO9001 certified, ensuring every valve meets rigorous quality standards. Our experienced team provides technical support and after-sales service, making us a preferred partner for global buyers.
We invite you to experience the performance and durability of our Manual Plunger Valve. Whether you need a single unit for a specialized project or bulk orders for OEM applications, we offer competitive pricing, fast delivery, and customization options. Contact us today for a quote or technical consultation.
Frequently Asked Questions (FAQ)
-
Q: What is the maximum working pressure of this valve?
A: The valve is rated for 4000 PSI (27.6 MPa). It is factory tested at 6000 PSI to ensure safety margin. -
Q: Can this valve be used for oil or gas applications?
A: This model is designed for water. For oil or gas, please consult us for appropriate seal material (e.g., NBR or FKM) and pressure rating adjustments. -
Q: What connection sizes are available?
A: Standard sizes include 1/4", 3/8", 1/2", 3/4", and 1" NPT. Other sizes and flanged connections are available upon request. -
Q: Is the valve fully stainless steel or just the body?
A: The body, plunger, and stem are made of 304 stainless steel. Internal seals are PTFE or NBR, customizable. -
Q: How is the valve tested before shipment?
A: Each valve undergoes a hydrostatic pressure test at 6000 PSI and a seat leakage test at 4000 PSI. A test certificate is provided upon request. -
Q: What is the warranty period?
A: We offer a 1-year warranty against manufacturing defects. This covers material and workmanship issues under normal use. -
Q: Can you provide samples for evaluation?
A: Yes, sample orders are welcome. We can produce valves with your specific connection and seal requirements. Lead time is typically 7-15 days. -
Q: Do you have ISO certification?
A: Yes, our factory is ISO9001:2015 certified. We can provide a copy of the certificate for your records.
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