291-05991

Siemens part number 291-05991 is a globe control valve assembly known for its reliability and performance in fluid control. It features a valve size of 3 inches (80 mm), providing versatility in various applications. At its core is the SKB62U actuator, which efficiently manages the valve's operation.

The assembly is designed with a flow coefficient of 100 Cv, facilitating substantial flow rates while maintaining control. It operates under a normally closed (NC) action, ensuring the valve stays shut until activated. The flow characteristic is characterized as equal percentage, which optimizes flow regulation throughout the valve's range.

The valve body is crafted from cast iron, providing strength and durability. Its construction adheres to ANSI Class 125 standards, ensuring compatibility with significant pressure demands. For additional resilience, the trim material is stainless steel, offering benefits against corrosion and wear. The packing type consists of normal duty double EPDM O-rings, ensuring a tightly sealed operation.

Regarding electrical specifications, the valve requires a voltage rating of 24 Vac with a tolerance of ±20%. It operates effectively within an input frequency range of 50 to 60 Hz. The current power consumption rating of 18 VA or 12 W indicates efficient energy use. Control signals can be either 0 to 10 Volts DC or 4 to 20 milliamps, allowing for flexible integration into various control systems.

The actuator functions well within an operating temperature range of -15°C to 55°C, making this valve assembly suitable for diverse environments. Overall, the Siemens 291-05991 globe control valve assembly delivers reliable solutions in fluid management.