Pressure independent control valves

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Pressure independent control valves

F535E

2½ ″ - 8 ″

F535E allows maximum flow presetting, pressure-independent balancing and electric control. The valve is pressure-independent with the built-in piping for easier installation and maintenance. Flow control is only related to the opening of the electric actuator, regardless of system pressure differential fluctuation. F535E valve authority is 100%. The actual and ideal flow characteristic curves is consistent. This helps precise and fast control, reduces operating frequency of the actuator. It gives the pump its optimal flow option, the system is now able to run under minimum flow with the lowest pressure differential, achieving stable, efficient and energy saving effect.

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Product Features

Pressure-independent product.

100% valve authority, minimizing energy consumption.

Achieving equal percentage and linear characteristic curve.

Flow presetting, pressure-independent balancing and electric control: three in one function.

Pressure-independent balancing and electric control: two in one function.

Maximum flow setting as wished, more accurate control.

No need to change the fixed stroke of the valve disc while setting the flow manually.

Lockable flow setting.

Flow control is related to the opening of the actuator, regardless of pressure differential fluctuation.

Allowing multiple power supply input signal options.

Plug-in flow measuring point, allowing quick connection.

Technical Parameters

Supply Voltage: 24 VAC, 230 VAC, 0~10 V, 4~20 mA

Stroke: 18 mm~25 mm

Power: 6VA-18VA

Pressure Differential Range: 30Kpa~400 Kpa

Working Pressure: 1.6 Mpa/2.5 Mpa

Medium: Water or ethylene glycol mixture

Medium Temperature: -10°C~110°C (-38°F~230°F)

Dimensions: 2½〞~ 8〞

Ingress Protection: IP54

Thread Standard: ANSI or BSEN flange

Material Specifications
Body
Ductile iron
Stem
Stainless steel
Diaphragm
EPDM
Seat
Brass or stainless steel
Spring
Stainless steel
Seal
EPDM
Shell
ABS plastic
Measuring Port
Brass
Flow Parameters
Model In Stroke
mm
Flow Range
m³/h
Pressure Differential Range
Kpa
F535E 2½〞 18 4.0-24 30-400
F535E 3〞 18 6.4-34 30-400
F535E 4〞 20 8.4-48 30-400
F535E 5〞 25 19-75 30-400
F535E 6〞 25 30-120 30-400
F535E 8〞 25 45-175 30-400
Dimensions

Model L
mm
H
mm
H1
mm
D
mm
K
mm
Weight
Kg
F535E 290 248 90 185 145 25
F535E 310 252 101 200 160 32
F535E 350 296 111 235 190 43
F535E 400 339 127 270 220 65
F535E 480 370 141 300 250 83
F535E 495 448 145 360 310 115
HVAC Valves

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