# Flat Collar DN40 PN16/40 Geldbach 901400048 B37AS Black Steel

**URL:** https://aio.lv/en/product--geldbach-901400048-b37as--11197337
**Data updated:** 2026-02-14 19:35 (EET)
**Category:** Sinks & Sink Accessories
**Manufacturer:** Geldbach
**Manufacturer code:** 901400048 B37AS
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 35.49 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 29.33 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--geldbach-901400048-b37as--11197337

## 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

Flat collar (flange adapter) Geldbach DN40 with pressure rating PN16/40, model 901400048 B37AS in black steel finish. Designed for connecting pipelines and fittings with DN40 nominal diameter, it ensures a secure mechanical joint compatible with PN16 and PN40 systems. Suitable for industrial and commercial plumbing where a robust flange connection is required.

## Long description

Flat Collar DN40 PN16/40 Geldbach 901400048 B37AS Black Steel is a flange adapter designed to join pipeline components with a nominal diameter of DN40. Manufactured by Geldbach, this flat collar is rated for PN16 and PN40 pressure classes and finished in black steel to provide a durable mechanical connection between pipes, valves, and fittings in industrial and commercial plumbing systems.
Advantages
The flat collar provides a compact and reliable flange interface that simplifies alignment and bolting for DN40 connections. Its compatibility with both PN16 and PN40 systems reduces the need for multiple spare parts and allows flexible use across different pressure-class installations. The black steel finish offers basic corrosion resistance suitable for indoor and protected environments while maintaining mechanical strength for repeated assembly and disassembly.
Suitable for
 Joining DN40 pipes, valves and fittings in industrial plumbing
 Retrofit and repair of DN40 flange connections
 Commercial HVAC, water distribution and process piping where PN16 or PN40 ratings are used
Key specifications
 Nominal diameter: DN40
 Pressure rating: PN16 and PN40 compatible
 Material finish: black steel
 Type: flat collar / flange adapter
How to use
Install the flat collar by aligning it between the corresponding DN40 flange faces, ensuring a compatible gasket is placed between the mating surfaces. Insert and tighten bolts evenly in a cross pattern to achieve uniform compression and proper sealing. Verify the assembly for alignment and torque according to the piping system's installation standards and the gasket manufacturer's recommendations before placing the line into service.
Usage recommendations
Use the Geldbach flat collar with gaskets and fasteners rated for the intended pressure class (PN16 or PN40) and the service medium. For outdoor or corrosive environments consider additional protective coating or a different material finish. Follow relevant piping codes and safety procedures during installation and pressure testing.

## FAQ

### How much does the Flat Collar Geldbach DN40 PN16/40 901400048 B37AS cost, and is it available for purchase?

The price is 35.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 Geldbach 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 Geldbach 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/11197337/61980072_large.webp