YanShan Shunlinfeng Pipeline Manufacturing Co., Ltd.
Product Description
Standard
Product introduction
Internal Thread 90° M&F Elbow (Male & Female Threaded Elbow)
1. Product Definition
A 90-degree M&F threaded elbow is a pipe fitting designed to change flow direction at a right angle while featuring male (external) threads on one end and female (internal) threads on the other. This hybrid design enables direct connection between differently configured pipes/fittings without additional adapters.
2. Key Specifications
- Connection Type:
- Female (F) End: Internal NPT/BSPT threads (typically conforming to ASME B1.20.1)
- Male (M) End: External tapered threads with sealant grooves
- Angle: Precise 90° turn (short-radius design standard)
- Materials:
- Carbon steel (ASTM A105)
- Stainless steel (A182 F304/316)
- Brass (UNS C36000)
- Forged construction per ASME B16.11
3. Design Advantages
- Space Optimization: Eliminates need for separate union/nipple
- Leak Prevention: Dual-thread design with proper sealant creates redundant sealing
- Installation Flexibility:
- Male end connects to female-threaded valves
- Female end accepts male-threaded pipes
- Vibration Resistance: Thread locking compounds enhance joint stability
4. Installation Protocol
1. Thread Preparation:
- Clean threads with wire brush
- Apply 2-3 wraps of PTFE tape (or equivalent thread compound)
2. Assembly:
- Hand-tighten male end first (minimum 3 full turns)
- Use strap wrench on hex flats (avoid pipe wrench marks)
3. Final Torque:
- Additional 1-1.5 turns with wrench
- Maximum torque per ASME B31.3 Table A-2B
5. Quality Assurance
- 100% thread gauge inspection (Go/No-Go)
- Hydrostatic tested to 1.5x rated working pressure
- Magnetic particle inspection (MPI) for forged steel units
6. Industry Applications
- Hydraulic Systems: Compact directional changes in manifolds
- Instrumentation: Connection of gauges/transmitters
- Fire Protection: Sprinkler system junctions
- Process Piping: Low-pressure chemical lines
7. Standards Compliance
- ASME B16.11: Forged fittings dimensions
- ASTM A105/A182: Material specifications
- MSS SP-114: Corrosion-resistant threading
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Mr.Jasper
Company Address:Yanshan County,Cangzhou City,Hebei Province,China
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