FAQs of Brass Tubular Flanged Tailpiece

1. What is the core function of the brass tubular flange connection?

The core of the brass tubular flanged tailpiece is used in water supply and drainage pipeline systems to facilitate the connection, extension, or turning of equipment and pipelines, enhance connection stability through a flange structure, and adapt to the interface docking of faucets, valves, sanitary ware, water pumps, and other equipment.

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2. What is the size specification coverage of the brass tubular flange connection?

Conventional sizes range from DN15 to DN50 (1/2″–2″), while large-diameter customized models are available up to DN100 (4″).
We also support equal-diameter and reducing configurations (e.g., DN20 × DN15), allowing for flexible adaptation to various pipeline connection requirements.

3. Can the wall thickness of brass tubular flanged tailpieces be customized?

For special requirements, custom wall thicknesses from 0.8 mm to 5.0 mm are available to match different operating conditions:

• Low-pressure applications (e.g., drainage systems, residential bathrooms):
  Thin-wall options of 0.8–1.2 mm can be customized to reduce weight and overall procurement cost.

• High-pressure applications (e.g., industrial pipelines, fire sprinkler systems):
  Thick-wall designs of 2.5–5.0 mm are available to enhance pressure resistance and structural strength, withstanding hydrostatic pressure up to 10 MPa.

In addition, we support differential wall-thickness customization between the flange plate and the tailpipe body. For example, the tailpipe can use a thick-wall design to ensure pressure capacity, while the flange plate adopts a thinner wall to optimize installation fit and alignment.

4. Why source brass tubular flanged tailpieces directly from manufacturers?

Cut Off Multi-Layer Premiums, Slash Procurement Costs
Plumberstar is the source manufacturer of brass flanged tail pipes. Our direct supply model eliminates price-increase links, such as those found in traders and regional distributors. Buyers get factory prices straight away.
In traditional channels, middlemen typically add a 10%–20% profit margin on top. Direct procurement saves you this cost entirely. For large-volume procurement projects, you can also enjoy tiered pricing benefits. The bigger your order, the lower the unit price.
At the same time, the factory supports on-demand scheduling. You don’t have to stock up extra goods just to meet a minimum order quantity. This cuts down inventory capital occupation and storage costs for small-batch orders.
Flexible, Accurate Matching for Project Requirements
Different scenarios have varying demands for brass flanged tailpipes. Factors such as wall thickness, pipe diameter, flange size, and thread standard all vary. Middlemen’s standardized stock often can’t meet these individual needs.
Plumberstar’s factory-direct supply offers a full range of customized services:
We support free adjustment of wall thickness from 0.8mm to 5.0mm. It accommodates various conditions — including low-pressure drainage, high-pressure industrial pipelines, and more.
Flange aperture, hole position distribution, tail pipe length, and thread type (BSPP, BSPT, NPT, and so on) are all customizable.
Small-batch customization (minimum order 500 pieces) requires no extra mold opening fee. Delivery time is controllable. It matches the project construction progress perfectly. No rework losses caused by mismatched products.

5. Can you customize the brass tubular flange fittings?

Yes, we support any combination of diameter customization (such as DN15×DN20, DN25×DN32), a smooth transition design for the internal flow channel, and reduced water flow resistance. Customization needs to be clearly specified at both ends of the diameter, including the connection mode. The delivery cycle is extended by 2-3 working days.

6. How to check for interface leaks after installing brass tubular flanged tailpieces?

1 Water pressure test: pressurize to 1.5 times working pressure, maintain pressure for 30 minutes. Pressure drop ≤0.05MPa is qualified. 2 Soapy water test applies soapy water on the flange interface and threaded connection. No bubbles generated indicates a good seal suitable for low-pressure scenes.

7. Is there a coaxiality requirement for brass tubular flanged tailpieces?

There’s a key requirement: coaxial deviation must be ≤0.5mm. If not, it will cause uneven force on the flange. This damages the gasket and leads to leakage. During installation, adjust the pipeline position first. Make sure the flange surfaces are parallel and aligned. The bolts should pass through smoothly. Do not force alignment.

8. How to verify the authenticity of the brass tubular flange connection materials?

Plumberstar manufacturer provides material certification documents (MTC), including raw material supplier information and a composition analysis report. Support is offered to customers to use a spectrometer to detect material composition on-site. Additionally, batch purchases can be randomly sampled and sent to third-party organizations (such as SGS and BV) for testing. If the test results do not conform to the commitments, bear all testing expenses and replace the products free of charge.

9. Are the brass tubular flanged tailpiece export clearance documents complete?

Customs clearance documents are complete, including commercial invoice, packing list, bill of lading, certificate of origin (CO, general certificate of origin, or FTA certificate of origin), material certificate, inspection report, certification documents (CE/NSF, etc.), and fumigation certificate (if required)—testing report and Drop Test Standard for Export Packaging. Documents can be customized according to destination country requirements to ensure smooth customs clearance.

10. Can the design of the brass tubular flanged tailpiece be optimized for specific markets?

Plumberstar can optimize the design of brass flanged tailpipes based on specific market requirements. We tailor the product’s structure and performance to fit different regions’ technical standards, installation habits, and application scenarios.
Here are the specific optimization directions:
1. Adapt to Different Markets’ Technical Standards & Certification Requirements
North American market: Threads are optimized to the NPT standard. Flange size follows the ASME B16.5 specification. Product material is upgraded to lead-free brass (meets NSF/ANSI 61 certification), complying with local drinking water systems’ environmental requirements.
European market: Adopts BSPP thread interface. Flange pressure rating is designed according to PN10/PN16. Meeting EU pressure equipment safety standards.
Emerging markets (Southeast Asia, the Middle East, etc.): Strengthen the welding strength between the flange and the tailpipe to fit the local high-temperature and high-humidity climate.
2. Match Target Market’s Cost & Performance Requirements
Price-sensitive markets: On the premise of ensuring core performance, we use a thin-wall optimized design. We streamline materials for non-critical components. This lowers the product’s ex-factory cost while keeping quality stable.
High-end custom market: Upgrade surface treatment processes, such as chrome plating and nickel plating. This improves the product’s rust resistance and appearance texture, meeting the aesthetic and quality requirements of high-end projects.