Design and Functionality
The Rosemount Three-Valve Manifold is a precision-engineered component designed to enhance the safety, reliability, and efficiency of pressure measurement systems in industrial applications. This manifold integrates three manually operated valves configured to isolate, equalize, and vent process pressure from transmitters, ensuring seamless calibration, maintenance, and operational control. Constructed with high-grade materials such as stainless steel, carbon steel, or alloy variants, the manifold is built to withstand harsh environments, including extreme temperatures, corrosive media, and high-pressure conditions. Its compact, modular design simplifies installation and integration with Rosemount pressure transmitters and other compatible devices. The three-valve configuration includes an isolation valve to disconnect the transmitter from the process, an equalizing valve to balance pressure across the transmitter, and a vent valve to safely release residual pressure during servicing. This design minimizes downtime, reduces the risk of process fluid leakage, and ensures accurate pressure readings by maintaining system integrity during operations.
Technical Specifications and Customization
The Rosemount Three-Valve Manifold is engineered to meet global industry standards, including ASME B16.5, ISO 9001, and API specifications, ensuring compatibility with a wide range of process connections such as ¼-inch NPT, ½-inch NPT, and DIN-style fittings. It supports pressure ratings up to 10,000 psi (689 bar), depending on material and configuration, making it suitable for applications in oil and gas, chemical processing, power generation, and water treatment. The manifold's valves feature ergonomic handles or handwheels for precise control, coupled with stem seals made from PTFE or graphite to prevent leakage and extend service life. Rosemount offers customization options, including material selection for wetted parts (e.g., 316 stainless steel, Monel, Hastelloy), coating treatments for corrosion resistance, and specialized configurations for high-vibration or subsea environments. Additionally, the manifold can be paired with bleed or test valves for advanced diagnostic capabilities. Its compatibility with Rosemount's Asset Management Software enables predictive maintenance, real-time monitoring, and data-driven optimization of pressure measurement systems.
Applications and Operational Benefits
The Rosemount Three-Valve Manifold is indispensable in critical processes where pressure measurement accuracy and system safety are paramount. In refinery and petrochemical plants, it ensures safe isolation of transmitters during catalyst changes or pipeline maintenance. In power generation, it facilitates calibration of steam pressure sensors without interrupting turbine operations. The manifold's equalizing function is particularly vital in differential pressure (DP) flow measurement, enabling zero-point calibration by balancing pressure across transmitter diaphragms. This feature minimizes measurement drift caused by temperature fluctuations or process variations. By reducing the need for full system shutdowns during maintenance, the manifold enhances operational uptime and reduces labor costs. Its robust construction and leak-proof design align with environmental and safety regulations, such as OSHA and SIL-2/3 standards, mitigating risks of hazardous fluid release. Furthermore, Rosemount's global service network provides technical support, ensuring rapid troubleshooting and lifecycle management. Overall, the Three-Valve Manifold exemplifies Rosemount's commitment to delivering innovative, durable solutions that optimize process control, reduce total cost of ownership, and uphold industry safety benchmarks.
| Model Number |
Rosemount Three-Valve Manifold |
| Body Material |
316 Stainless Steel |
| Valve Type |
Manifold with Block and Bleed |
| Port Connections |
1/2" NPT or G1/2 |
| Pressure Rating |
6000 psi (413 bar) |
| Temperature Range |
-40°C to 120°C (-40°F to 248°F) |
| Leakage Class |
ANSI/FCI 70-2 VI |
| Seal Material |
PTFE, Grafoil, or Fluorocarbon |
| Surface Finish |
Electropolished (Ra ≤ 0.8 µm) |
| Compliance |
ASME B16.34, PED 2014/68/EU |
| Weight |
1.2 kg (2.65 lbs) |
| Mounting Orientation |
Vertical or Horizontal |
| Ingress Protection |
IP67 |
| Hazardous Area Certification |
ATEX, IECEx |
| Valve Stem Type |
Rotary or Needle |
| End Connection Type |
Flanged, Threaded, or Sanitary |
| Media Compatibility |
Liquids, Gases, Steam |
| Cycle Life |
100,000+ Operations |
| Compatible Transmitters |
Rosemount 3051, 4088, 648 |
| Packaging |
Individual Carton with ESD Protection |
KeRui (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales, technical services, and supportingequipment supply of specialized companies.
The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems,and eight series of more than 1,000 specifications.
Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental textile, dyeing, and other fields.
protection, plastics, food, printing, tobacco,textile, dyeing, and other fields.
Q: How long will you give me the reply?
A: We will reply to you as soon as we see the information
Q: What is the delivery time?
A:The products in stock will be shipped after receiving the payment, and the products that
need to be ordered are subject to the factory time.
Q: How about your package?
A: Do not worry about the package, we have rich experience in packing.
Q: How about the payment terms?
A:You can choose T/T.
Q: What is the MOQ?
A:1PC.
Q: Can l get a lower price if l order large quantities?
A: Yes, cheaper prices with more bigger size orders.
Q:After sales and warranty?
A: We provide one year warranty lifetime technical support services.
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