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Mild Steel Tapered Thread Coupler
Forged mild steel full coupler with female tapered threads — joins two threaded pipe ends in high-pressure service.
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TTCPipe Fittings
Overview
Mild Steel Tapered Thread Coupler is a forged pipe fitting used to connect two lengths of externally threaded pipe in a straight run. Both ends are precision-machined with female tapered threads (NPT or BSPT), allowing the coupler to be screwed onto male pipe threads and tightened to form a pressure-tight metal-to-metal seal. The thick-wall forged mild steel body is suitable for industrial fluid, steam, oil and gas, and utility piping where a compact, removable threaded joint is required without welding.
Size Range
⅛" – 4" (NPS)
Pressure Class
2000# / 3000# / 6000# (ASME B16.11)
Key Features
- Full coupler — female tapered threads at both ends
- Forged mild steel body for high-pressure integrity
- NPT and BSPT thread forms per specification
- Precision-machined threads for reliable metal-to-metal seal
- Compact cylindrical design — easy installation in tight spaces
- No welding required — serviceable threaded connection
- 2000#, 3000# and 6000# ratings per ASME B16.11
Benefits
- Quick field assembly without welding equipment
- Forged construction stronger than cast threaded fittings
- Tapered threads provide self-sealing pressure joint when properly tightened
- Wide size range and thread standards to match project specifications
Specifications
| Standards | ASME B16.11, MSS SP-83, GB/T 14383 |
| Pressure Ratings | 2000#, 3000# and 6000# (Class 2000 / 3000 / 6000) |
| Nominal Diameter | NPS ⅛" – 4" (DN6 – DN100) |
| Connection | Female tapered pipe threads — NPT (ANSI/ASME B1.20.1) or BSPT (ISO 7-1) |
| Type | Full coupler (half coupler and reducing coupler on request) |
| Working Temperature | -29°C – 425°C (grade dependent) |
Applications
Oil and gas field and process piping extensionsPetrochemical and refinery threaded branch linesSteam, condensate and utility pipingChemical plant instrument and sample connectionsIndustrial water, air and hydraulic lines
Product Enquiry
Standards
- • ASME B16.11
- • MSS SP-83
- • ANSI/ASME B1.20.1
- • ISO 7-1
Materials
- • Mild Steel / Carbon Steel: A105, A234 WPB, 20#
- • Stainless Steel: 304, 304L, 316, 316L (on request)
- • Alloy Steel: A182 F11, F22 (on request)
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