BSP Brass Socket Coupler Female x Female — Reliable Thread-to-Thread Connections When a leaking joint or a mismatched pipe size brings your plumbing, compressed air, or gas project to a halt, you need a fitting you can trust. These BSP brass socket couplers are designed for DIYers, plumbers, and maintenance professionals who need a dependable female-to-female threaded connection without the guesswork. Each fitting is machined from solid brass and features two female BSP (British Standard Pipe) threaded ports. Available in 18 size combinations ranging from 1/8" × 1/8" up to 1" × 1", including reducing configurations such as 3/4" × 1/4" and 1/2" × 3/8". Sold individually or in packs of 2, 5, 8, or 10 pieces to suit single repairs or larger installations. Typical applications include connecting two male-threaded pipes or fittings in residential plumbing systems, joining compressed air lines in workshops and garages, and linking water supply lines in irrigation or HVAC systems — anywhere a BSP female-to-female socket coupler for pipe joining is needed. 🔗 Thread Standard: BSP (British Standard Pipe) — parallel female threads on both ends. Not compatible with NPT threads. Confirm your pipe thread standard before ordering. ✅ Key Features of These BSP Brass Female Socket Couplers 🔩Dual Female BSP Threads — Both ports feature female BSP threads, allowing direct connection between two male-threaded pipes or fittings without additional adapters. ⚙️18 Size Combinations — Straight couplers (equal ports) and reducing couplers (unequal ports) from 1/8" up to 1", covering the most common BSP pipe sizes used in residential and light commercial work. 🟡Solid Brass Construction — Machined brass offers good corrosion resistance, machinability, and thermal conductivity, making it a standard choice for water, air, and low-pressure gas fittings. 💧Leak-Resistant Thread Form — Precision-cut BSP threads provide consistent engagement depth, reducing the risk of cross-threading and supporting a reliable seal when used with PTFE tape or thread sealant. 📦Flexible Pack Quantities — Choose 1, 2, 5, 8, or 10 pieces per order — ideal for single-point repairs, small projects, or stocking a workshop with BSP reducing socket couplers for future use. 🏠Broad Application Range — Suitable for cold and hot water plumbing, compressed air distribution, irrigation systems, and general fluid transfer lines where BSP female thread fittings are specified. 📐 Technical Specifications — BSP Brass Female Socket Coupler Fitting Type Socket Coupler (Female × Female) Thread Standard BSP (British Standard Pipe) Thread Gender Female on both ends Material Brass Available Sizes (Port 1 × Port 2) 1/8"×1/8", 1/4"×1/4", 1/8"×1/4", 3/8"×3/8", 3/8"×1/8", 3/8"×1/4", 1/2"×1/2", 1/2"×1/8", 1/2"×1/4", 1/2"×3/8", 3/4"×3/4", 3/4"×1/8", 3/4"×1/4", 3/4"×3/8", 3/4"×1/2", 1"×1", 1"×1/2", 1"×3/4" Size Range (Nominal) 1/8" (≈ 9.7mm OD) to 1" (≈ 33.2mm OD) BSP nominal Finish Natural brass (uncoated) Working Pressure See variant options — generally rated for water, air, and low-pressure gas; contact us to confirm for your application Temperature Range Contact us to confirm for your specific media and application Pack Quantities 1, 2, 5, 8, or 10 pieces Recommended Sealant PTFE thread seal tape or thread sealant compound Compatible Thread Standard BSP only (not compatible with NPT) ⚠️ Heads up: BSP and NPT threads are not interchangeable. If you are unsure of your pipe thread standard, measure the thread OD and pitch or consult a plumber before ordering. ❓ Frequently Asked Questions How do I choose the right socket coupler size? Match the size to your existing pipe thread. The format is Female Port 1 × Female Port 2 — for example, 1/2" × 1/4" means one port is 1/2" BSP and the other is 1/4" BSP. For equal-size connections use a straight coupler (e.g., 1/2" × 1/2"); for reducing connections choose the larger port to match your main line and the smaller port to match your branch line. As a reference, 1" BSP has a nominal OD of approximately 33.2mm (≈ 1.31") and 1/2" BSP is approximately 20.9mm (≈ 0.82"). What pressure rating do these brass fittings typically handle? Brass BSP socket couplers generally handle working pressures up to 200–600 PSI depending on size and application. Smaller sizes typically support higher pressure ratings. Always verify the rated pressure for your specific application and consult a qualified engineer for critical or high-pressure systems. Can these fittings be used outdoors or in wet environments? Brass has inherent corrosion resistance and is generally suitable for outdoor and wet environments. However, prolonged exposure to highly acidic water, salt spray, or ammonia-based environments can cause dezincification over time. For marine or highly corrosive environments, stainless steel alternatives are typically recommended. Are these fittings compatible with NPT (National Pipe Thread) connections? No — these fittings use BSP (British Standard Pipe) threads, which are not directly interchangeable with NPT threads. BSP and NPT have different thread angles (55° vs 60°) and pitch. BSP-to-NPT adapters are required if connecting to NPT systems. Always confirm the thread standard of your existing pipework before ordering. What sealant should I use with these BSP fittings? PTFE thread seal tape (plumber's tape) is the most common sealant for BSP parallel threads. Apply 2–3 wraps of PTFE tape in the direction of the thread for a reliable, leak-free seal. For tapered BSP threads (BSPT), thread sealant compound can also be used. Avoid over-tightening, which can crack the fitting body. Are these fittings suitable for gas lines? Brass fittings are commonly used in low-pressure gas applications (natural gas, LPG/propane) in many regions. However, gas installations are subject to local codes and regulations. Always verify compliance with your local gas authority or a licensed plumber before installing on gas lines. In most cases, a gas-rated thread sealant (not standard PTFE tape) is required for gas connections. How many pieces do I need for a typical repair or installation? For a single connection point, 1 piece is sufficient. For small projects or to keep a spare on hand, 2 pcs is a practical choice. Packs of 5, 8, or 10 are ideal for contractors, workshops, or anyone maintaining multiple systems — and offer a lower per-unit cost compared to buying individually. 🛒 Select your execution type, size, and quantity above, then add to cart — ships from our US warehouse.
