Description
The Siemens 274-03168 is a 2-way Flowrite™ control valve with a 1-1/4" F x F connection designed for modulating control of steam and hydronic systems. Featuring a Cv of 16 and equal percentage flow characteristic, it provides precise regulation in HVAC and industrial applications. Equipped with a spring return electro-hydraulic actuator rated at 258 in-lb and powered by 24 VAC, it supports proportional control via 0–10 VDC or 4–20 mA signals.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Siemens |
| Category |
HVAC Control Valves |
| Part Number |
274-03168 |
| Subcategory |
2-Way Control Valves |
| Valve Type |
2-Way, Normally Open |
| Connection Size |
1-1/4" F x F |
| Flow Coefficient (Cv) |
16 |
| Flow Characteristic |
Equal Percentage |
| Trim Material |
Bronze |
| Actuator Type |
Spring Return Electro-Hydraulic |
| Actuator Torque |
258 in-lb |
| Control Signal |
0–10 VDC / 4–20 mA |
| Supply Voltage |
24 VAC |
| Power Consumption |
14 VA |
| Stroke |
3/4" |
| Run Time |
30 Seconds Powered |
| Spring Return Time |
15 Seconds |
| Media |
Saturated Steam, Water, Glycol (Up to 50%) |
| Fluid Temperature Range |
20°F to 250°F (-7°C to 120°C) |
| Ambient Temperature Range |
5°F to 130°F (-25°C to 150°C) |
| Weight |
Approx. 8 kg |
Information About 274-03168
The 274-03168 is part of Siemens’ Flowrite valve series, engineered for accurate flow modulation in heating, cooling, and process control systems. This normally open, 2-way valve incorporates bronze trim and female threaded (F x F) connections for durability and straightforward installation. Designed for service with saturated steam, water, and glycol solutions up to 50%, it operates within fluid temperatures from 20°F to 250°F (-7°C to 120°C). The integrated spring return electro-hydraulic actuator ensures fail-safe positioning with a 15-second return time and supports proportional control signals for seamless integration into building automation systems.
Key Features:
- 2-Way Normally Open Design: Provides reliable flow control with fail-safe spring return operation.
- Equal Percentage Flow Characteristic: Enables stable modulation across varying load conditions.
- Cv 16 Flow Capacity: Supports balanced control in medium-capacity HVAC and steam systems.
- Electro-Hydraulic Actuator (258 in-lb): Delivers strong, precise valve positioning.
- Proportional Control Inputs: Accepts 0–10 VDC and 4–20 mA signals for BAS compatibility.
- Fast Response Time: 30-second powered stroke with 15-second spring return.
- Wide Media Compatibility: Suitable for saturated steam, water, and glycol solutions up to 50%.
- Temperature Tolerance: Fluid temperature range from 20°F to 250°F for flexible application use.
The 274-03168 delivers the reliability and precision required for proportional flow control in HVAC and steam regulation systems.
