The Butterfly Valves PN6/10/16 VFL41 are robustly designed valves for use as control or shut-off valves in heating, ventilation, and air conditioning (HVAC) systems. These valves feature a nodular cast iron housing (EN-GJS-400-18-LT) and are available in sizes DN 40 to DN 600, offering a wide range of applications. They ensure tight-closing performance in accordance with EN 12266-1, leakage rate A, and require no maintenance, providing hassle-free operation. Equipped with electromotoric actuators SAL.., SQL36E or SQL341E.., SQL361E, they offer efficient automation for various HVAC applications.
Product information "Siemens – Butterfly Valve VFL41 Series"
Specification
Details
Valve Housing
Nodular cast iron for durability and corrosion resistance.
Size Range
DN 40 to DN 600, catering to diverse system requirements.
Flow Capacity (kvs)
40 to 31,000 m³/h, ensuring efficient fluid control.
Flange Connection
PN 6, PN 10, PN 16 counter-flanges to ISO 7005 for secure, leak-proof connections.
Leakage Rate
Tight-closing performance in accordance with EN 12266-1, leakage rate A.
Optional Manual Adjuster
ASK41NF.. manual adjuster (up to DN 400) for additional control options.
Actuator Compatibility
Electromotoric actuators SAL.., SQL36E, SQL341E.., SQL361E for HVAC automation.
Feature
Feature
Details
Maintenance-Free Operation
Requires no maintenance, reducing downtime and operational costs.
Versatile Application
Suitable for closed and open circuits, boiler and chiller sequencing circuits, and controlling flow to heat exchangers.
Control Options
Compatible with 2-position (open/closed) and 3-position controls, offering flexibility in control strategies.
Robust Construction
Body made of nodular cast iron, ensuring durability and reliability in harsh operating conditions.
Environmental Compliance
Conforms to environmental standards and directives, ensuring environmentally compatible product design.
Functional Data
Specification
Details
PN Class
PN 16 to EN1333
Permissible Operating Pressure
1600 kPa (16 bar)
Medium Temperature
-20…120 °C
Flange Connection
PN6, PN10, and PN16 according to ISO 7005
Face to Face Dimension
DIN EN 558, series 20
Angle of Rotation
90°
Description
The Butterfly Valves PN6/10/16 VFL41 offer a reliable solution for fluid control in HVAC systems, combining durability, efficiency, and ease of maintenance to meet diverse application requirements.
