# Manifold with Shut-off Valves CALEFFI O3/4X4 O23P.1,5-18 (MPN 354054)

**URL:** https://aio.lv/en/product--caleffi-354054--12391642
**Data updated:** 2026-04-26 22:19 (EEST)
**Category:** Other goods
**Manufacturer:** CALEFFI
**Manufacturer code:** 354054
**EAN:** 8016615109832
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 45.99 €
**Prices and availability valid until:** 2026-10-29 23:59
**Price without VAT (21%):** 38.01 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--caleffi-354054--12391642

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.10.2026 | free |
| Pickup points | 16.10.2026 | 1.99 EUR |
| Courier delivery to door | 16.10.2026 | 4.99 EUR |

## Summary description

CALEFFI manifold with shut-off valves O3/4X4 O23P.1,5-18 (MPN 354054) is a hydraulic distribution unit designed for dividing and isolating circuits in heating and plumbing systems. It integrates individual shut-off valves for each circuit to enable maintenance, flow control and isolation. Suitable for residential or light commercial installations where modular circuit management is required.

## Long description

CALEFFI manifold with shut-off valves O3/4X4 O23P.1,5-18 is a hydraulic distribution unit intended to divide and isolate circuits in heating and plumbing installations. The unit integrates individual shut-off valves for each circuit, permitting flow regulation and isolated maintenance without disturbing other branches. Designed for residential and light commercial systems, this manifold supports a modular approach to circuit management and simplifies commissioning and servicing tasks.
Advantages
The manifold provides compact and organized hydraulic distribution with built-in shut-off valves that allow each circuit to be closed independently. Its design reduces installation time by centralizing connections and simplifies maintenance by enabling draining and isolation of single circuits. The unit is compatible with common piping sizes used in domestic and small commercial heating systems and improves system manageability through clear access to each circuit’s control point.
Suitable for
 Residential heating distribution (radiators, underfloor heating manifolds)
 Light commercial hydraulic circuits requiring modular control
 Installations where individual circuit isolation is needed for maintenance
 Retrofit projects that benefit from a compact, centralized manifold
When it may not be suitable
This manifold is intended for domestic and light commercial use; it may not be appropriate for large industrial systems with high flow and pressure demands or where specific industrial certifications or special materials are required. If the project requires integrated metering, balancing with electronic controls, or custom manifold layouts beyond the available port count, this standard shut-off manifold may not meet those needs.
Key specifications
 Function: hydraulic distribution manifold with individual shut-off valves
 Connection size: designed for three-quarter inch supply connections and multiple branch outlets sized for common domestic piping
 Port count: multiple circuit outlets (configured for four circuits in this model)
 Material characteristics: corrosion-resistant components suitable for heating and potable hot-water circuits
 Operation: manual shut-off valves for each circuit enabling isolation and flow interruption
How to use
Install the manifold in the hydraulic distribution location following local regulations and good installation practice. Connect the supply and return lines to the designated inlet and outlet connections, then attach each circuit to an individual branch outlet. Use the manual shut-off valve on each branch to regulate flow or isolate that circuit for maintenance. During commissioning, verify tightness of all joints and purge air from the system. Ensure accessible mounting and labeling of circuit outlets to facilitate future service operations.
What to consider before purchase
 Confirm compatibility with the piping diameters and thread types used in your installation
 Check the number of circuits required and select a manifold with a matching port count
 Verify material compatibility with system fluids and local regulations for potable or heating water
 Assess available space for mounting and access to shut-off valves for service
Usage recommendations
For reliable operation, mount the manifold in an accessible location, label each circuit clearly, perform pressure and leak tests after installation, and carry out periodic inspections of valve function. When isolating a circuit, bleed residual pressure before disconnection and follow standard safety procedures for heating and plumbing systems.

## FAQ

### How much does the CALEFFI manifold O3/4X4 O23P.1,5-18 cost, and is it available for purchase?

The price is 45.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 13.10.2026 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 CALEFFI 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 CALEFFI 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

https://aio.lv/img/cache/product/12391642/69904718_large.webp