ASME Forged Self Reinforce Nozzles for Pressure Vessel

Forged Self-Reinforced Nozzles (SR Nozzles) are critical components in pressure vessel and piping systems, primarily used to provide connections for inlet, outlet, or auxiliary piping while maintaining the structural integrity of the vessel or pipe. These nozzles are forged and designed with an integral reinforcement to withstand high pressure and stress concentrations without requiring additional reinforcement pads.

self-reinforced nozzles, it is generally assumed that the reinforcement to withstand the loads that affect the nozzle will be a constitutive part of the nozzle. This means that self-reinforced nozzles do not need auxiliary elements (like built up nozzles) to withstand design conditions and external loads. On a practical level, self-reinforced nozzles are those that do not have any additional kind of reinforcement (pad) attached, and all the welds between its own components and between the nozzle and the vessel are full penetration type. Because of that, these nozzles could be named integrally reinforced as well. There are different configurations of self-reinforced nozzles. The most commonly used are the mentioned as follows: Long Welding Neck (LWN) or straight hub, variable hub thickness, and nozzles manufactured using a standardized thickness pipe.

Forged SR Nozzles:

1. Self-Reinforcing Design:
   • The nozzle’s geometry incorporates sufficient material to meet reinforcement requirements specified by design codes like ASME Section VIII, Division 1 or 2.
   • Eliminates the need for external reinforcement pads, reducing potential points of failure.
2. Material Options:
   • Typically made from materials such as carbon steel, stainless steel, and alloy steel, depending on the application and operating conditions.
   • Material available.
   • ASME SA-105N
     ASTM A350 LF2
     ASTM A694 F42/F46/F52/F56/F60/F65
   • Stainless Steel: ASTM A182 F304, F316, F321, F316Ti, F904L, F44, F347H, F317L
     Duplex/Super Duplex:ASTM A182  F51, F53, F60
     Nickel Alloy: Ni 200, Monel 400, Inconel 600, 625, 718, 926, Hastelloy C276, C22, B3, Incoloy 825, 800HT
3. Manufacturing Process:
   • Forging enhances the nozzle’s strength and toughness by refining the grain structure and improving mechanical properties.

Reinforcing nozzles made from ASME SA-105N / SA182 / for pressures up to 2000 psi.

• Forged, heat treated and machined
• Per ANSI B16.5 or custom nozzle if provided with drawings
• Material certification and complete test reports are available

Type of nozzles:

• LWN Nozzle, “HB” Heavy Barrel Nozzle, “F” Full Body Nozzle
• Variable Body “V1”, “V2”, “V3”
• Self reinforced neck
• Stub End Forging / Studding Outlets
• Design Nozzles per your job

Name: Forged Self Reinforce Nozzles
Raw material: Carbon/stainless/alloy
Min size: Ø 90/Ø 50x130mm
Max size: Ø 1000/Ø 900x3000mm
Min weight: 4.00kg
Max weight: 12000kg
Heat treatment: Normalize/Quench/tempering
PED-AD 2000-Merkblatt W0

Applications of Self Reinforce Nozzles

• Pressure Vessels:
  • Used in chemical, petrochemical, and power plants for process fluid transport.
• Piping Systems:
  • Connection points for piping in high-pressure and high-temperature environments.
• Heat Exchangers:
  • Nozzles for inlet/outlet connections.
• Storage Tanks:
  • Often utilized in tanks requiring high structural integrity.