COVNA Products

COVNA HKFP Anti Corrosive PTFE Solenoid Valve

HKFP Anti Corrosive PTFE Solenoid Valve

with isolated diaphragm construction to rot-proof PTFE body for corrosion resistance. Suitable for most of the corrosive mediums. Widely used in the chemical industry, cosmetics industry and so on. COVNA supplies various kinds of solenoid valves such as anti-corrosive types, water-proof types, and general-purpose types for your applications. Consult us to get the valve solution!

Model

  • Function: Normally Closed
  • Pressure: 0 to 1.5 bar
  • Voltage: DC-12V, 24V; AC-24V, 120V, 240V/60Hz; 110V, 220V/50Hz
  • Temperature of Media: -5 to 50℃
  • Suitable Media: Corrosive fluid and gas, acid, alkali, etc
  • Valve Material: PTFE

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Features Of COVNA HKPF PTFE Solenoid Valves:

● With isolated diaphragm construction to rot-proof PTFE body for corrosion-resistant

● Suitable for acid, alkali, medical, and other mediums

● Widely used in the medical industry, medical industry and other applications

● Excellent anti-corrosion performance

● Responsive for flow control

Technical Parameters Of COVNA HKPF PTFE Solenoid Valves:

Port size 1/8″, 1/4″, 3/8″, 1/2″, 1″ Orifice(mm) 3, 6
Port Thread G, NPT Function Normally Closed
Pressure 0 to 1.5 bar Voltage DC-12V, 24V; AC-24V, 120V, 240V/60Hz; 110V, 220V/50Hz
Temperature of Media -5 to 80℃ (23℉ to 176℉) Suitable Media Corrosive fluid and gas, acid, alkali, etc
Material PTFE Tolerance ±10%

 

Size Port Size Orifice(mm) Cv Min Pressure Max Pressure
AC(24VA) DC(18W)
HKFP2130 1/8″ 3.0 0.1 0.0 MPa 0.3 MPa 0.3 MPa
AC(20VA) DC(28W)
HKFP2160 1/4″ 6.0 0.28 0.0 MPa 0.15 MPa 0.15 MPa
HKFP2160 3/8″ 6.0 0.28 0.0 MPa 0.15 MPa 0.15 MPa
HKFP2160 1/2″ 6.0 0.28 0.0 MPa 0.15 MPa 0.15 MPa
HKFP2160 3/4″ 6.0 0.28 0.0 MPa 0.15 MPa 0.15 MPa
HKFP2160 1″ 6.0 0.28 0.0 MPa 0.15 MPa 0.15 MPa

Dimension of COVNA HKPF PTFE Solenoid Valves:

Port Size 3/8”, 1/2″, 3/4″, 1″, 1¼”, 1½”, 2″ Orifice(mm) 15, 20, 25, 32, 40, 50
Port Connection BSPP,BSPT, NPT, Flange Function Normally closed or opened
Pressure 0.00MPa-1.0MPa Voltage DC-12V, 24V, AC-24V, 120V, 240V/60Hz; 110V,220V/50Hz
Temperature of media NBR Seal: 0~80℃

EPDM Seal: 5~190℃

 Suitable Media Alkali Acid and salt etc
Material UPVC, CPVC Sealing Material EPDM, VITON,NBR, PTFE
Coil YC1B , 15W ( AC ) , 16W ( DC )
Coil YELB, start at 200W, maitain at 5W(AC),28W(DC)
Coil YF1B, start at 350W, maitain at 10W(AC), start at 75W,maitain at 25W(DC)
The actuator on my automated valve operates, but the valve won’t turn. Why?

Most likely the valve stem or actuator coupling is broken.

The electric actuator limit switches or the pneumatic actuator position stops are not correctly adjusted.

Probably because there is no air pressure to the solenoid or dirt has jammed it. Also, debris might be trapped inside the valve. Or, the air pressure is not sufficient to operate the actuator. Remember: measure air pressure at the actuator, not at the compressor.

Maybe. First, be sure that the actuator torque output is sufficient to turn the valve reliably. Second, you will have to fabricate a custom mounting bracket and coupling to connect the actuator to the valve.

The valve will stop somewhere between full open and close. When power is reapplied to the original circuit, the actuator will complete the cycle.

To make the change just remove the actuator from the valve and turn it, or the valve stem, 90 degrees and remount the actuator.

Remove the actuator from the valve and check the valve stem. Most ball valves have stem flats at right angles to the flow when the valve is in the off position. On butterfly valves check the stem flow arrow marking.

Remove the actuator from the valve and check the valve stem. Most ball valves have stem flats at right angles to the flow when the valve is in the off position. On butterfly valves check the stem flow arrow marking.

Check the electric wiring schematic that came with the actuator for the correct hookup. Sometimes a copy is inside the actuator cover. If it is missing, don’t guess about the connections. Call the manufacturer for a schematic.

The actuator is wired incorrectly (check the schematic accompanying the actuator), or the external control switch is not the correct type for the actuator.

Not unless you bought it with an optional speed control.

Actuators and solenoid valves require different types of electrical control switches. SPDT for actuators, SPST for solenoids. Check the actuator wiring schematic for the correct wiring and switch type.

Still have confused? Contact Us!
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