# Air admittance valve McAlpine HC50-50 Ø50 mm for drainage and ventilation systems

**URL:** https://aio.lv/en/product--mcalpine-hc50-50--11822731
**Data updated:** 2026-03-09 11:11 (EET)
**Category:** Sinks & Sink Accessories
**Manufacturer:** McAlpine
**Manufacturer code:** HC50-50
**EAN:** 5036484500403
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 36.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 30.57 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mcalpine-hc50-50--11822731

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

McAlpine HC50-50 is an air admittance (vent) valve with a Ø50 mm connection designed for drainage and ventilation applications. The compact valve allows air intake to equalize pressure in plumbing systems and prevent siphoning of traps. Suitable for domestic and light commercial installations where a mechanical vent is required, it fits 50 mm pipework.

## Long description

McAlpine HC50-50 is an air admittance valve with a Ø50 mm connection designed for drainage and ventilation systems. The compact valve admits air into plumbing stacks and branch drain lines to equalize internal pressure, reducing the risk of trap siphoning and helping maintain water seals. It is intended for domestic and light commercial installations where a mechanical vent is appropriate and connects directly to 50 mm pipework.
Advantages
The valve offers a compact design that fits within confined service voids and under fixtures. It operates without a roof penetration, removing the need for conventional vent stacks in many retrofit and new build scenarios. The construction provides reliable air intake under negative pressure while preventing the escape of sewer gases when pressure is neutral or positive. Installation requires minimal adjustments and routine maintenance is limited to visual checks and occasional cleaning.
Suitable for
Domestic drainage systems with 50 mm pipework
Light commercial washrooms and sanitary fittings
Retrofit projects where roof venting is impractical
Locations requiring a mechanical alternative to open vent stacks
Key specifications
Connection diameter: 50 mm
Function: air admittance to equalize pressure in drainage systems
Application: drainage and ventilation for traps and stacks
Typical installation: vertical or as specified by manufacturer guidance
Construction: compact body suited to confined spaces
How to use
Fit the valve onto compatible 50 mm pipework following plumbing regulations and manufacturer guidance for orientation and location. Ensure the valve is accessible for inspection and positioned above the highest fixture served where practical. After installation, test the system by running fixtures to confirm trap seals remain intact and that air is admitted correctly when fixtures discharge. Replace the unit if signs of damage or persistent odour are detected.
Usage recommendations
Use the valve in accordance with local plumbing codes and the manufacturer's installation instructions. Avoid fitting in locations subject to constant positive pressure or where exposure to external weather could affect operation. For mixed-material systems, ensure compatible connections and consider periodic inspection to verify continued airtight seating and functionality.

## FAQ

### How much does the McAlpine HC50-50 air admittance valve Ø50 mm cost, and is it available for purchase?

The price is 36.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 19 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 07.07.2026 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 McAlpine 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 McAlpine 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/11822731/67224782_large.webp