Pilot-operated safety valve with a high maintenance frequency due to the limited service life of certain internal components. The challenges included large fluctuations in process pressure pulses and process pressure very close to the set pressure.
Maintenance of the safety valve required shutting down the affected production line.

The manufacturer, BH Consolidated, developed a solution in collaboration with the customer based on a well-proven, existing pilot-operated safety valve. It consists of a double pilot-operated safety valve on the same unit and a diverter valve to direct the flow through each pilot valve as needed using a manual diverter handle.

This solution enables continuous operation with shunting between the pilots, allowing one of the two pilots on the safety valve to be removed for maintenance.

Two complete valve assemblies were ordered and installed on each of the main production lines.

– Double pilot operated safety valve with shuttering between valves for continuous operation

Håland Instrumentering AS responsibility and deliveries:

• Establish contact between the manufacturer’s product expert and the customer’s maintenance specialist.
• Arrange a site visit with the manufacturer’s expert for a tour and discussion of the details of the challenges.
• Intermediary between customer and manufacturer in the communication leading up to a new and finished product.
• Follow up production progress and update customers.
• Arrange and carry out training and inspection before delivery.
• Follow up on minor changes to the design after inspection and before delivery.
• Documentation.
• Spare parts.

Other lifetime extensions from Håland Instrumentering AS:

– Fire and gas field equipment
– Level and flow upgrades