General Hardware
SHOWA Pipe Tap
Brand: Showa
Pipe taps are used to cut internal threads in pipes or fittings so they can accept threaded pipe connections. Unlike standard thread taps, pipe taps cut threads that are tapered or parallel, ensuring a tight fit for sealing under pressure. 1. NPT (National Pipe Taper) Tap •
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Product details
Use: Common in the USA for air, gas, and liquid piping. 2. BSPT (British Standard Pipe Taper) Tap •
Use: Widely used in UK, Europe, and Asia for fluid & gas lines. 3. BSPP (British Standard Pipe Parallel) Tap (often just called BSP in general use) •
Specifications
- Standard
- American (ANSI/ASME B1.20.1). •
- Thread
- Tapered (1°47′ per side, ~1 in 16 taper). •
- Seal
- Achieved by metal-to-metal interference as the tapered threads tighten. •
- Standard
- ISO 7-1 (also known as R thread). •
- Thread
- Tapered, similar to NPT but with a 55° thread angle (NPT uses 60°). •
- Seal
- Thread interference (like NPT), often with sealant or PTFE tape. •
- Standard
- ISO 228-1 (also known as G thread). •
- Thread
- Parallel (straight) threads, not tapered. •
- Seal
- Requires a washer, O-ring, or gasket to make a pressure-tight joint. •
- Use
- Hydraulic systems, plumbing, sealing with flat seats. made in China
- Brand
- Showa
- Category
- General Hardware
- Sold per
- pc
- Pricing
- Request a quote (RFQ)
- Delivery
- Nationwide, same-day quote
