What Is a Goyen Type Pulse Jet Valve? 2026 Buyer’s Guide

"Goyen type" is one of those phrases that behaves differently on a purchase order than in a workshop, and the gap between the two is where sourcing problems start. In the trade it has become a reference pattern for a diaphragm pulse jet valve: a cast body with a necked outlet, an internal pilot passage and a screwed cover holding a diaphragm, used to blow a short pulse of compressed air into a baghouse or fabric filter so the dust cake drops off the bags.

Buyers use the name because it is how the type became known in the dust collection world, and it is genuinely useful shorthand, but it is not a specification. A Goyen type valve can be a 1/2 inch or a 3 inch body, integral or remote pilot, cloth or PTFE diaphragm, aluminium or stainless, with a DC24V or AC220V coil, and those differences decide whether the valve works in your filter house at all. This guide sets out what the designation covers, what the CA and RCA families in our catalogue actually contain, and the six specifications worth fixing before you order.

What the Valve Does Inside a Dust Collector

A pulse jet valve does one job, and understanding it removes most of the guesswork from selection. When the controller energises the coil, the pilot opens and compressed air from the header rushes through the valve throat and out of the necked outlet as a short, sharp pulse. That pulse generates the shock wave that travels down the venturi and shakes the dust cake off the filter media, and the cake falls into the hopper.

Two details drive the decision. The first is volume: the pulse must be large enough to clean the filter area the valve is assigned to, which is why size is matched to filter area rather than chosen by eye. The second is timing: whether the blow is fast or slow changes how the pressure pulse travels through the filter, which matters for long bags, shock-sensitive media and heavily branched headers.

The diaphragm is why this is a pulse jet valve and not a simple blow-off valve. The coil sits behind a sealed cover, so the dirty gas side stays isolated from the electrical side and dust and condensate never reach the coil. That is why the coil is not a consumable, and why a failed diaphragm shows up as a valve that will not hold pressure or leaks continuously rather than as a burnt coil.

CA and RCA: Two Architectures, One Body

The most useful distinction in the CA family is between the integral pilot and the remote pilot valve, because it changes how the pulse is generated and where the electronics live.

• Integral pilot (CA series). The pilot passage is cast into the valve body, so one coil opens the valve directly. It is simple, compact and the default for small and medium installations, and our catalogue carries it from the CA-15T and CA-20T up through the CA-25T and CA-35T.
• Remote pilot (RCA series). A separate pilot valve, such as the RCA3D2 remote control pilot valve in our range, opens the main valve. The pulse supply and the blow characteristic can then be adjusted independently, and the coil can be mounted away from the dusty zone.
• Flanged and tank-mounted variants. Where the inlet is a flange or the valve is mounted directly on the tank, the catalogue carries RCAC25FS and RCAC45FS flanged bodies, the CA-89MM and CA76MM / RCA76MM tank mounted versions, and the MM Series K5000 Viton manifold mount pulse valve.

The right-angle bodies are a separate decision, not a separate family. Our catalogue carries the DMF right angle pulse valve DMF-Z-50S for DN50 and 2 inch installations and the DMF-ZM-25 with dresser nut couplings, alongside the shock wave 4 series 1 inch remote pilot valve. A right angle body changes the pipe layout, not the pulse principle, so it is chosen after size and pilot type are settled.

Reading the CA Family: What Is Published

Below is what our own product pages publish for the CA and RCA range, with nothing added and nothing inferred.

The Six Specifications That Decide the Fit

1. Valve size against filter area and air consumption. The published bodies run from 1/2 inch through 3 inch, and the size has to match the filter area the valve cleans: undersizing shows up as incomplete cleaning and rising differential pressure.
2. Coil voltage and connector. The CA range is published with DC24V and AC220V coils and DIN 43650A connectors, so the header cabinet has to match the coil, and a mismatched connector is the most common reason a valve order arrives and will not mount.
3. Integral or remote pilot. Remote pilot buys you an adjustable blow and an electronics position outside the dust, at the cost of one more component to install and to service.
4. Diaphragm material. The catalogue carries cloth and membrane options including nitrile versions, with repair kits for CA, DMF, SCG, TURBO, MECAIR, NORGREN and customer-made versions. Material choice follows temperature, chemistry and cleaning regime.
5. Body material. Aluminium die-cast bodies are the norm and stainless steel is available for corrosive atmospheres, which decides service life in a wet or chemical duty.
6. Pressure range and protection. The published working range on the CA-76T is 0.3 to 0.8 MPa and IP65 is published on the CA-35T. Your header pressure has to sit inside the range, and the protection rating has to match the room the valve is in.

Spares: The Diaphragm Is a Consumable

An automatic filter house runs on its spares, and a plant that stocks valves but not diaphragms will stop when a pulse fails. Our catalogue treats the repair kit as a first class product rather than an accessory: repair kits are published for CA, DMF, SCG and TURBO bodies, plus membrane kits from MECAIR and NORGREN, AUTEL kits, customer-made kits and an intensified filter membrane option. Alongside them sit the parts a technician needs on site: pulse valve coils, pilot valves, single and double head bulkhead connectors, and timers for the controller side.

Two planning notes. First, a plant on diaphragm valves should carry a kit quantity proportional to the number of valves, because the kit is the consumed item and the coil rarely fails. Second, write the body family as well: a CA-25T kit does not fit an RCA-25T body with a different pilot arrangement, and mixing families is how a plant ends up with parts that do not fit its valves.

Compliance, Safety and the Plant Around the Valve

The valve is a component in a machine that a plant operates, and the obligations sit with the plant and the equipment builder rather than with the valve supplier. In the United States, servicing a filter house means isolating hazardous energy before any valve, cover or diaphragm work, and the requirements for that isolation are set out in 29 CFR 1910.147. The dust collection and ventilation requirements for the installation sit in 29 CFR 1910.94. In the European Union, the machinery that incorporates the filter and its cleaning system is assessed under the Machinery Directive 2006/42/EC, and any control electronics with it under the EMC rules.

None of that is a reason to avoid a Goyen type valve. It is a reason to buy from a supplier who can tell you what the valve is, what the diaphragm is and what documentation stands behind the lot, and to keep that documentation with the spares. We publish our management system and certification pages for the same reason: on a filter house, traceability is part of the maintenance kit.

A Buyer's Checklist Before You Order

1. List the filter area each valve cleans, not the number of valves, because size follows the filter area and the air consumption per pulse.
2. Fix the body size and the mounting: threaded, quick fit compression fitting, flanged, tank mounted or manifold mount.
3. Decide integral or remote pilot and whether the blow needs to be adjustable.
4. State the coil voltage and the connector, and check the cabinet before the order rather than after it.
5. Choose the diaphragm material for the temperature and the cleaning regime, and confirm the kit family matches the body family.
6. Confirm the body material for the atmosphere, and check the published pressure range against the header.
7. Order the spares with the valves, including coils, pilot valves and bulkhead connectors for the installation.
8. Ask for the documentation behind the lot: specification, lot identification and membrane material, so the file survives the next maintenance shutdown.

Frequently Asked Questions

Published by the Pulse Jet Valve team, Ningbo. For product enquiries, technical data or a spare parts list for an existing filter house, email info@pulsejetvalve.com or call 86 575 8310 5570, with WhatsApp on 86 158 8855 8104. Inquiries are answered within 24 hours.

Last verified: 2026-11-06. Model designations, coil voltages, connectors, pressure ranges, protection ratings and diaphragm options quoted here are taken from our own published product pages for the CA and RCA families. Valve sizing, pilot selection and diaphragm material depend on the filter, the header and the service conditions, so confirm the final configuration against your own duty before ordering, and check the current safety and conformity requirements for the installation in your jurisdiction.