# Pressure regulator Honeywell D04FM-3/4A, 3/4" inlet/outlet, pneumatic control

**URL:** https://aio.lv/en/product--honeywell-d04fm-34a--11785090
**Data updated:** 2026-03-08 22:56 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** Honeywell
**Manufacturer code:** D04FM-3/4A
**EAN:** 4019837116330
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 34.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 28.92 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--honeywell-d04fm-34a--11785090

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Honeywell pressure regulator D04FM-3/4A is a compact pneumatic pressure control device with 3/4" inlet and outlet connections. Designed to maintain stable downstream pressure for industrial and HVAC applications, it features a robust valve body and adjustable setpoint for precise regulation of gas or air lines. Suitable for process control, instrumentation, and machine supply.

## Long description

Honeywell D04FM-3/4A is a compact pneumatic pressure regulator with 3/4" inlet and outlet connections, designed to maintain a stable downstream pressure in gas or air lines. The regulator features an adjustable setpoint, a durable valve body and internal components engineered for continuous industrial and HVAC operation. Intended for installation in process control loops, instrumentation lines and machine supply circuits, the device provides straightforward pneumatic control without the need for electrical power.
Advantages
The regulator delivers accurate pressure maintenance through a sensitive pneumatic control mechanism and an adjustable setpoint, allowing precise downstream pressure control. Its robust construction supports reliable operation in industrial environments and HVAC systems. The 3/4" inlet/outlet configuration simplifies integration with standard piping, while the compact design reduces required installation space and facilitates retrofitting into existing lines.
Suitable for
 Maintaining stable supply pressure for pneumatic tools and actuators
 Pressure control in HVAC and ventilation systems
 Process control and instrumentation lines requiring regulated gas or air pressure
 Machine supply circuits in manufacturing and assembly equipment
Key specifications
 Connection size: 3/4" inlet and outlet
 Control type: pneumatic pressure regulation with adjustable setpoint
 Media compatibility: compressed air and compatible industrial gases
 Construction: durable valve body suitable for industrial use
 Power requirement: no electrical power required (pneumatic operation)
How to use
Install the regulator inline with the flow direction indicated by the body markings, using compatible 3/4" piping or fittings. Ensure the upstream supply pressure meets the regulator's allowable input range and that the media is clean and free of particulates or liquids that could damage internal parts. Adjust the setpoint according to the required downstream pressure using the regulator's adjustment mechanism, then verify stable operation under expected load conditions. Regularly inspect connections and the body for leaks and perform maintenance as recommended for pneumatic control devices.
Usage recommendations
Prefer installation with upstream filtration and a condensate trap when used with compressed air to prolong service life. Avoid exposure to corrosive media and follow routine inspection intervals to ensure consistent pressure regulation and safe operation.

## FAQ

### How much does the Pressure regulator Honeywell D04FM-3/4A cost, and is it available for purchase?

The price is 34.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 88 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 16.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Honeywell products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Honeywell service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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