Rosemount™ 1195 Integral Orifice Primary Element

The Rosemount 1195 Integral Orifice Primary Element is engineered to facilitate highly accurate flow measurement in small line sizes (0.5 - 1.5 in. or 15 - 40 mm). The primary element is provided in a meter run for easy installation and is suitable for flow measurements of gas, liquid or steam. This product utilizes a self-centering orifice plate to prevent installation error and it can be ordered as a completely assembled flowmeter or as an assembled-to product.

• Primary element integrated in a meter run for ease of installation
• Available to order pre-assembled with a transmitter for a complete flow assembly
• Suitable for small line sizes 0.5 - 1.5 in. (15 - 40 mm) for optimal flow measurement accuracy and repeatability
• Self-centering orifice plate prevents installation error to ensure best-possible performance
• Directly mounts to any Rosemount DP transmitter and offers a range of process connections for application flexibility

1. Integral Integrated Design: Combines orifice plate, measuring tube, flange and other components into a pre-assembled unit, eliminating tedious on-site splicing. It significantly shortens installation time, reduces measurement deviation risks caused by assembly errors, and fits various pipeline specifications.

2. High-Precision Measurement Performance: Adopts advanced orifice plate processing technology, with orifice diameter tolerance controlled within ±0.02mm. Combined with a stable hydrodynamic structure, it achieves a flow measurement accuracy of ±0.5%, meeting high-precision working conditions in petroleum, chemical and other industries.

3. Strong Environmental Adaptability: The shell is made of 316L stainless steel, which is acid-resistant, alkali-resistant and corrosion-resistant. It can operate stably in a temperature range of -40℃~350℃ and a pressure environment of 10MPa, adapting to harsh industrial scenarios.

4. Convenient Maintenance Features: With modular component design, there is no need to disassemble the entire pipeline when replacing wearing parts later. Only the corresponding parts need to be replaced individually, reducing downtime and maintenance costs.

1. Cost and Time Savings: The integral pre-assembled design eliminates the on-site assembly process, improving installation efficiency by more than 60%. It also reduces labor and accessory procurement costs, lowering the overall project investment.

2. Reliable Measurement Guarantee: Relying on Rosemount's century-old industrial measurement technology, the product undergoes strict factory testing. The long-term operation failure rate is less than 0.5%, avoiding production losses caused by inaccurate measurement.

3. Wide Compatibility: It can be seamlessly connected with Rosemount series differential pressure transmitters and measuring equipment of other brands. No additional adaptation and debugging are required, enabling easy integration into existing control systems.

4. Compliance and Safety: Complies with international standards such as ISO 5167 and ASME MFC-3M, and has passed explosion-proof certifications such as ATEX and IECEx. It meets mainstream global industrial safety regulations and ensures production safety.

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