Product Overview

This Brass Lead Free Internal Half Threaded Socket Fitting is a plumbing component designed to connect pipes in water, natural gas, LPG, and low-pressure oil systems. The term “half threaded” means that the internal bore is partially threaded (typically 50-70% of the total socket depth), while the remaining portion is smooth.

Manufactured by Hongxin Pipe Fitting, this socket fitting uses certified lead-free brass (ASTM C46400 or CW509L equivalent), with lead content below 0.25% by weight, complying with:

• NSF/ANSI 61 – Drinking water system components

• RoHS Directive (2011/65/EU) – Restriction of hazardous substances

• California AB1953 and Vermont S152 – Lead-free plumbing laws

Technical Specifications

Applications

• Potable water plumbing – Residential and commercial drinking water lines

• Natural gas and LPG systems – Indoor and outdoor gas distribution

• Low-pressure hydraulic oil – Return lines and lubrication circuits (non-shock)

• HVAC systems – Chilled and hot water loops

• Compressed air – Low to medium pressure (≤ 250 PSI recommended)

Why Choose Hongxin Pipe Fitting?

Hongxin Pipe Fitting has manufactured brass plumbing fittings for over 12 years, supplying to plumbing wholesalers, gas utility contractors, and industrial distributors. Our lead-free half threaded sockets are produced on CNC lathes with automated thread cutting, ensuring dimensional consistency to ±0.05mm.

Product Description 

Brass lead free internal half threaded socket fitting from Hongxin Pipe Fitting for plumbing, water, gas, and oil systems. Lead-free brass C46400, lead ≤0.25%, NSF/ANSI 61 compliant. Internal half thread (BSP or NPT), sizes 1/4" to 2". Working pressure: water 400 PSI, gas 300 PSI, oil 250 PSI. Temperature -20°C to +120°C. Factory direct, 100% thread inspected.