274-03021

The 274-03021 from Siemens, part of the Flowrite 599 Series, is a modulating control valve assembly focused on operational efficiency. Its performance is rated with a close-off pressure of 250 psi (1724 kPa), providing reliable service capabilities. Designed for a voltage range of 24 VAC, the device effectively operates at input frequencies of either 50 or 60 Hz. The valve is enclosed in a NEMA 1 rated housing, suitable for indoor applications where minor exposure to external elements is expected.

This assembly utilizes a globe valve design configured as a 2-way normally open mechanism, making it suitable for applications requiring continuous flow regulation. The connection is established via female NPT connectors on each end, which simplifies installation processes. Its flow coefficient is rated at 4.0 Cv, indicating efficient fluid management.

Constructed from bronze, specifically UNS CA844, the body offers strength and durability under varying conditions, while the stainless steel trim enhances resistance to wear. For actuation, the system employs an electro-hydraulic proportional actuator model SKD62U, which ensures precise modulation of flow rates. The 274-03021 modulating control valve assembly is thus well-suited for a range of control applications in fluid systems.