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Help CenterAlloy Steel Plunger Valve for Natural Gas Transmission, 1500LB, 4" Flanged, NACE MR0175 Compliant
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Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our Alloy Steel Plunger Valve for Natural Gas Transmission, designed to handle the most demanding high-pressure applications. With a robust 1500LB pressure rating and a 4-inch flanged connection, this valve is engineered for reliable shut-off and flow control in natural gas pipelines. As a manufacturer with ISO9001 certification and over 8 years of experience, we ensure each valve meets the strict requirements of NACE MR0175 for sour service environments. Our commitment to quality and safety makes this plunger valve a trusted choice for global energy projects.
This valve is meticulously crafted to deliver superior performance, durability, and ease of maintenance in critical natural gas transmission systems. Below, we provide detailed insights into its features, specifications, and benefits.
Key Features & Benefits
- Alloy Steel Construction: High-strength alloy steel body and trim provide excellent resistance to corrosion, erosion, and high-pressure stress, ensuring long service life even in harsh conditions.
- Plunger Design: The unique plunger mechanism offers a tight seal and smooth operation, reducing the risk of leakage and enabling precise flow control.
- 1500LB Pressure Rating: Designed for high-pressure natural gas transmission systems, this valve can withstand extreme operating pressures up to 1500 LB (class 1500).
- 4-Inch Flanged Connection: Standard 4-inch flanged ends (ANSI B16.5 compatible) ensure easy installation and integration with existing pipeline infrastructure.
- NACE MR0175 Compliance: Meets the industry standard for materials used in H₂S-containing environments, making it suitable for sour gas applications.
- Low Fugitive Emissions: Advanced sealing technology minimizes fugitive emissions, helping operators meet environmental regulations.
- Easy Maintenance: Top-entry design allows for in-line inspection and replacement of internal components without removing the valve from the pipeline.
- Bi-directional Sealing: Provides reliable sealing in both directions, enhancing safety and operational flexibility.
Technical Specifications
| Parameter | Value |
| Valve Type | Plunger Valve |
| Body Material | Alloy Steel (ASTM A216 WCB or equivalent) |
| Trim Material | Stainless Steel / Alloy Steel (NACE compliant) |
| Pressure Rating | 1500 LB (Class 1500) |
| Size | 4 inch (DN100) |
| Connection Type | Flanged (Raised Face, RTJ optional) |
| Design Standard | API 6D / ISO 14313 |
| Test Standard | API 598 |
| Compliance | NACE MR0175 / ISO 15156 |
| Operating Temperature | -29°C to 121°C (customizable) |
| Certification | ISO9001:2015 |
Why Choose Our Plunger Valve?
Our plunger valve is engineered to address the specific challenges of natural gas transmission, including high pressure, sour gas content, and the need for reliable sealing. The alloy steel body provides exceptional strength and corrosion resistance, while the plunger design ensures a bubble-tight shut-off. Compared to conventional gate or ball valves, the plunger valve offers a more compact structure and lower torque requirement, reducing actuator size and cost. Additionally, the NACE MR0175 compliance guarantees that the valve materials are resistant to sulfide stress cracking, making it a safe choice for sour service. Whether you are upgrading existing pipelines or building new infrastructure, this valve delivers consistent performance with minimal maintenance.
Applications
- Natural gas transmission pipelines
- Gas gathering stations
- Compressor stations
- Metering and regulation systems
- Offshore and onshore oil & gas facilities
- Refinery and petrochemical plants (sour gas services)
Frequently Asked Questions
Q1: What is the difference between a plunger valve and a gate valve?
A plunger valve uses a cylindrical plunger to seal against the seat, offering a more compact design and lower operating torque. It provides superior sealing performance compared to gate valves, especially in high-pressure applications, and is less prone to leakage.
Q2: Can this valve be used for hydrogen sulfide (H₂S) containing natural gas?
Yes, this valve is fully compliant with NACE MR0175, which specifies material requirements for use in H₂S-containing environments. It is suitable for sour gas applications.
Q3: What flange standards are compatible with the 4-inch flanged connection?
The flanged ends are designed to meet ANSI B16.5 Class 1500 raised face (RF) dimensions. Ring-type joint (RTJ) facing is also available upon request.
Q4: What is the maximum operating temperature?
The standard temperature range is -29°C to 121°C. For higher or lower temperature requirements, custom materials and seals can be provided.
Q5: Is the valve supplied with a maintenance manual?
Yes, each valve comes with a detailed operation and maintenance manual, including spare parts list and recommended inspection intervals.
Q6: How long is the warranty period?
We offer a standard 12-month warranty from the date of shipment, covering manufacturing defects. Extended warranty options are available upon negotiation.
Q7: Can you provide third-party inspection reports?
Absolutely. We can arrange third-party inspection by agencies such as BV, SGS, or DNV at an additional cost. Our valves are also tested in-house according to API 598.
Q8: What is the lead time for this valve?
Typical lead time is 30-45 days after receipt of order, depending on quantity and customization. For urgent orders, please contact our sales team for expedited options.
Company & Trust
Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, has grown into a reliable manufacturer with an annual export value of US$1 million to US$1.5 million. Our ISO9001-certified quality management system ensures consistent product quality. We serve diverse markets including North America, South America, Europe, Southeast Asia, Africa, and the Middle East, with products shipped from major ports: Shanghai, Guangzhou, Hongkong, and Beijing. Our team of experienced engineers and technicians is dedicated to providing valves that meet the highest industry standards. With a strong focus on customer satisfaction, we offer technical support, after-sales service, and customized solutions. Choose our Alloy Steel Plunger Valve for your natural gas transmission needs and experience the reliability that comes from a manufacturer committed to excellence.
Contact us today for a quote or to discuss your specific requirements. We look forward to partnering with you for your next project.
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