The actuator on my automated valve operates, but the valve won’t turn. Why?

Most likely the valve stem or actuator coupling is broken.

Why doesn’t my valve open or close completely when the actuator operates it?

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

When I energize the solenoid on my pneumatic actuated valve, the valve won’t turn. How come?

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.

Can I buy an actuator from one manufacturer and mount it to a valve from another manufacturer?

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.

What happens if I lose power to my electric actuator in the middle of an actuation cycle?

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

I ordered a fail open pneumatic actuated valve by mistake. I needed a fail closed one. What can I do?

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

I’ve installed my automated valve in the line, but now I don’t know if the valve is in the open or closed position. How can I find out?

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.

Do I have to have the solenoid valve that controls the air supply to my pneumatic actuator mounted right on 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.

How do I wire up my electric actuator?

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.

I’ve just installed an electric actuated valve and when I power it, it turns the valve 360 degrees and won’t shut off. What’s wrong?

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

My electric actuators cycle time is way too fast, can I slow it down?

Not unless you bought it with an optional speed control.

I just replaced a solenoid valve with an electric actuated valve and it won’t work. Why?

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.

HK59-D-G Series 4 inch Metal Seated Pneumatic Actuator Operated Butterfly Valve

HK59-D-G-serien 4 tommer metalsædet pneumatisk aktuatorbetjent spjældventil

Three eccentric butterfly valve is widely used in metallurgy, electric power, petrochemical industry, water supply and drainage, municipal construction and other industrial pipelines with medium temperature ≤ 425 ℃, for regulating flow and breaking fluid. Normally material: cast iron, cast steel, stainless steel. If the stem axis deviates from the disc center and the body center at the same time, and the rotation axis of the valve seat has a certain angle with the channel axis of the valve body, it is called three eccentric butterfly valve

Model: HK59-D-GF
Size Range: 2”~18”
Pressure Range: 1.0MPa to 2.5MPa
Material: Stainless Steel

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COVNA HK59-D-GF Pneumatic three eccentric butterfly valve, the valve body part adopts three eccentric structure, the valve plate and sealing mechanism are unique in design, with excellent cutting performance and durability, as well as dual functions of cutting and adjusting. It is small in size, light in weight, economical and practical, and easy to maintain; Low friction, high efficiency, high thrust and good safety; Simple, eye-catching, reliable and integrated travel indication, combined installation of limit switch and solenoid valve, no external pipeline, reducing leakage point; It can realize bidirectional sealing function, which can be adjusted and cut off

A variety of actuator forms are available for selection to meet the requirements of different users; The design of flexible and combined actuator (manual mechanism) can ensure the free installation and flexible control in all directions

Technical Parameters of Valve Actuator

Double acting	Air to open, air to close, air supplier failure to keep the current position
Single acting N/C	Air to open, interrupt air to close, air failure to close
Single acting N/O	Air to close, interrupt air to open, air failure to open
Optional accessory	Reversing solenoid valve, limit switch box, air filter reducing valve, positioner, handle manual, lock up valve.

Tekniske parametre for ventilhus

Body		Ventilkomponenter
Size range	DN50~DN400	Forseglingsmateriale	Rustfrit stål
Body material	Stainless tseel	Core material	Rustfrit stål
End conection	Wafer, Flange	Stem material	Rustfrit stål
Operating pressure	1.0, 1.6MPa	Anvendelige medier	Water, oil, Gas, Liquid, steam, powder, anti-corrosive base
Struktur	Midline Structure/ A-type	Anvendelige medier	Water, oil, Gas, Liquid, steam, powder, anti-corrosive base

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Technical Parameters of Valve Actuator

Double acting	Air to open, air to close, air supplier failure to keep the current position
Single acting N/C	Air to open, interrupt air to close, air failure to close
Single acting N/O	Air to close, interrupt air to open, air failure to open
Optional accessory	Reversing solenoid valve, limit switch box, air filter reducing valve, positioner, handle manual, lock up valve.

Tekniske parametre for ventilhus

Body		Ventilkomponenter
Size range	DN50~DN400	Forseglingsmateriale	Rustfrit stål
Body material	Stainless tseel	Core material	Rustfrit stål
End conection	Wafer, Flange	Stem material	Rustfrit stål
Operating pressure	1.0, 1.6MPa	Anvendelige medier	Water, oil, Gas, Liquid, steam, powder, anti-corrosive base
Struktur	Midline Structure/ A-type	Anvendelige medier	Water, oil, Gas, Liquid, steam, powder, anti-corrosive base

Aktuatoren på min automatiske ventil fungerer, men ventilen vil ikke dreje. Hvorfor gør den ikke det?

Det er mest sandsynligt, at ventilspindlen eller aktuatorkoblingen er knækket.

Hvorfor åbner eller lukker min ventil ikke helt, når aktuatoren betjener den?

Den elektriske aktuators grænsekontakter eller den pneumatiske aktuators positionsstop er ikke korrekt justeret.

Når jeg aktiverer magnetventilen på min pneumatisk aktiverede ventil, drejer den ikke. Hvordan kan det være?

Sandsynligvis fordi der ikke er noget lufttryk til magnetventilen, eller fordi snavs har sat sig fast. Der kan også sidde snavs fast inde i ventilen. Eller også er lufttrykket ikke tilstrækkeligt til at betjene aktuatoren. Husk: Mål lufttrykket ved aktuatoren, ikke ved kompressoren.

Kan jeg købe en aktuator fra én producent og montere den på en ventil fra en anden producent?

Måske. Først skal du være sikker på, at aktuatorens drejningsmoment er tilstrækkeligt til at dreje ventilen pålideligt. For det andet skal du fremstille et tilpasset monteringsbeslag og en kobling til at forbinde aktuatoren med ventilen.

Hvad sker der, hvis jeg mister strømmen til min elektriske aktuator midt i en aktiveringscyklus?

Ventilen stopper et sted mellem helt åben og helt lukket. Når der igen tilføres strøm til det oprindelige kredsløb, vil aktuatoren fuldføre cyklussen.

Jeg bestilte ved en fejl en pneumatisk aktiveret ventil. Jeg havde brug for en fail closed. Hvad kan jeg gøre ved det?

For at foretage ændringen skal du blot fjerne aktuatoren fra ventilen og dreje den eller ventilspindlen 90 grader og montere aktuatoren igen.

Jeg har installeret min automatiserede ventil i ledningen, men nu ved jeg ikke, om ventilen er i åben eller lukket position. Hvordan kan jeg finde ud af det?

Fjern aktuatoren fra ventilen, og tjek ventilspindlen. De fleste kugleventiler har spindelfladen vinkelret på flowet, når ventilen er i off-position. På butterflyventiler skal du kontrollere spindelens pilemarkering.

Skal magnetventilen, der styrer lufttilførslen til min pneumatiske aktuator, være monteret direkte på aktuatoren?

Hvordan tilslutter jeg min elektriske aktuator?

Tjek det elektriske ledningsskema, der fulgte med aktuatoren, for den korrekte tilslutning. Nogle gange ligger der en kopi inde i aktuatorens dæksel. Hvis den mangler, skal du ikke gætte dig til forbindelserne. Ring til producenten for at få et skema.

Jeg har lige installeret en elektrisk aktiveret ventil, og når jeg sætter strøm til den, drejer den ventilen 360 grader og vil ikke lukke. Hvad er der galt?

Aktuatoren er tilsluttet forkert (tjek skemaet, der følger med aktuatoren), eller den eksterne kontrolkontakt er ikke den rigtige type til aktuatoren.

Min elektriske aktuators cyklustid er alt for hurtig, kan jeg gøre den langsommere?

Ikke medmindre du har købt den med en valgfri hastighedskontrol.

Jeg har lige udskiftet en magnetventil med en elektrisk aktiveret ventil, og den virker ikke. Hvorfor ikke?

Aktuatorer og magnetventiler kræver forskellige typer af elektriske kontrolafbrydere. SPDT til aktuatorer, SPST til magnetventiler. Tjek aktuatorens ledningsskema for korrekt ledningsføring og kontakttype.

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HK59-D-G-serien 4 tommer metalsædet pneumatisk aktuatorbetjent spjældventil

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