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Class 150 Fittings 

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Class 150 pipe fittings are used in piping system to alter directions and to make connections among the equipment. These fittings are used to regulate the low-pressure fluid or gas. It is usually used for non-critical and low cost applications. The size ranges are from 1/8” to 4” (DN6 to DN100). 

​Low-pressure fittings are used mainly in the plumbing, waterworks, oil and gas industry, where there are low pressure piping requirements. Threaded low-pressure fittings allow the installer to reassemble it at any time and welding isn't mandatory. ​
​Size
  • 1/8" to 4"
Material
  • Stainless Steel SS316
Working Pressure
  • 150#
Connection
  • ​National Pipe Thread (NPT)
  • ​British Standard Pipe Thread (BSPT)
CATALOGUE :

​​​​​Class 150 Fittings​


What are class 150 Fittings

1. What are class 150 fittings used for? ​​​​
​
The pipe with threaded end will be used to tighten up with fittings to extend the flow direction. ​These fittings are also known as class 150# or 150 LB fittings. 150# Threaded fittings are made conform to ​ASTM A351 CF8M/316 Stainless Steel material. 

2. What are class 150 fittings ​pressure ratings?

Stainless steel material ensures corrosion resistance and overall durability.  Brass  or malleable iron have lesser corrosion resistance compared to stainless steel which is why stainless steel material is applicable in all systems to last for a longer time. 150# fittings are functional only in low-pressure conditions and the maximum pressure that the fitting can withstand is up to 150 psi. 
Hex Plug
Hex Plug
3. What are threaded class 150 fittings?

In general, there are two types of connections available for low-pressure threaded fittings, NPT (National Pipe Thread) and BSPT (British Standard Pipe Tapered). With the fitting as a connector, it would stop the leakage from the connection of the two pipes.
Full Coupling
Full Coupling
NPT is similar to BSPT except the angle across the flanks of threads is 60 degrees and while BSPT has 55 degrees. Therefore, NPT and BSPT thread cannot be used together. The connection needs to correspond to each other. For example, NPT fittings female thread need to tighten up with NPT male thread and the same to BSPT male and female thread.

4. What are the different types of class 150 fitting? 

There are many fitting designs to choose when customizing a system flow direction and calculating a flow rate. The fittings are  elbows, tees, caps, couplings, reducers and unions , the common fittings that are used in major systems. Majority of the fittings are female thread except hex/square bush, hex nipple and street elbow, which hex/square bush and street elbow are one side male and one side female thread. Hex nipple are both sides of the male thread. 
Reducing Coupling
Reducing Coupling
Hex Nipple,  both sides male thread
Hex Nipple, both sides male thread
Low pressure fittings can be applied in the following light duty industries to ensure continuous passage of liquid: 
  • Industrial cooling water systems 
  • Ships building 
  • Plumbing system 
  • Fire Protection
5. How do you install class 150 fittings? 

To  minimize installation leakage , please follow 4 simple steps below: 

Step 1: First, thread the male fitting with Teflon tape or plumber’s tape which is used to establish a tighter seal to prevent seepage.

Step 2: Steer clear of excess application of Teflon Tape.

Step 3: Then tighten the joints by using the wrench but avoid excessive screwing which might cause damage to the fitting or pipe.

Step 4: Make sure that the size of the fitting is respected to the size of the pipe. Installers have to ensure the same alignment is very important and must take into consideration when making a connection.

CATALOGUE :

​​​​​Class 150 Fittings​


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  • About
    • Core Values
    • ISO Certified
  • Brands
    • Stauff
    • RFS Hydraulics
    • MHA Zentgraf
    • Eaton
    • AF Hydro
    • Oleo Tecnica
    • Inteva
    • Both-well
    • KPL Industry
  • Products
    • Pipes and Tubes >
      • Stainless Steel Tubes
      • Stainless Steel Pipes
      • Hydraulic Steel Tubes
      • Copper Pipes
      • Copper Coils
      • Walform Tube
    • Pipe Clamps >
      • Stauff Clamps
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      • Stauff Anti Corrosion Clamps
      • Tubeclo Rubber Insert Clamps
    • Flanges >
      • Hydraulic SAE Flanges
      • Square Flanges
    • High Pressure Valves >
      • High Pressure Ball Valves
      • SAE Flange Check Valves
      • Needle Valves
      • SAE Flange End Ball Valves
      • High Pressure Check Valves
      • ISO 6164 Ball Valves
    • High Pressure Fittings >
      • Compression Fittings
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      • Pipe Adapter Fittings
    • Low Pressure Valves >
      • Ball Valves >
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        • Stainless Steel Mini Ball Valve
      • Flange End Ball Valves >
        • PN10/16 SS316 Flange End Ball Valve
        • ANSI 150# SS316 Flange End Ball Valve
        • ANSI 300# SS316 Flange End Ball Valve
        • JIS 10K SS316 Flange End Ball Valve
        • ANSI 150# Cast Steel Flange End Ball Valve
        • ANSI 300# Cast Steel Flange End Ball Valve
      • Swing Check Valves >
        • ANSI 150# SS316 Swing Check Valves
        • JIS 10K SS316 Swing Check Valves
        • ANSI 150# Cast Steel Swing Check Valve
        • Threaded End SS316 Swing Check Valves
        • Threaded End Brass Swing Check Valves
      • Single Plate Check Valves
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      • Y-Strainers >
        • ANSI 150# SS316 Y-strainer
        • JIS 10K SS316 Y-strainer
        • Threaded End SS316 Y-strainer
        • ANSI 150# Cast Steel Y-strainer
        • JIS 10K Cast Steel Y-strainer
      • Gate Valves >
        • ANSI SS316 150# Gate Valve
        • JIS 10K SS316 Gate Valve
        • Threaded End SS316 Gate Valve (200 PSI)
        • Threaded End SS316 Gate Valve (800 PSI)
        • ANSI 150# Cast Iron Gate Valve
        • JIS 10K Cast Iron Gate Valve
        • ANSI 150# Cast Steel Gate Valve
        • ANSI 150# Forged Steel Gate Valve
        • Threaded End Forged Steel Gate Valve
        • Welded End Forged Steel Gate Valve
      • Globe Valves >
        • ANSI 150# SS316 Globe Valve
        • JIS 10K SS316 Globe Valve
        • Threaded End SS316 Globe Valve (200 PSI)
        • Threaded End SS316 Globe Valve (800 PSI)
        • ANSI 150# Cast Iron Globe Valve
        • JIS 10K Cast Iron Globe Valve
        • ANSI 150# Cast Steel Globe Valve
        • ANSI 150# Forged Steel Globe Valve
        • Threaded End Forged Steel Globe Valve
        • Welded End Forged Steel Globe Valve
      • Butterfly Valves >
        • ANSI 150# Cast Iron Butterfly Valve
    • Low Pressure Fittings >
      • Class 150 Fittings
      • Camlock Fittings
    • Accessories >
      • Pressure Gauges
      • Stauff Test Couplings
      • Walform Machine
      • GS Retain Ring
      • Anti-bloc Fett
      • Stauff Tube Clean Systems
      • Dowty Seals
      • Stauff Level Gauge
      • Stauff Filler Breathers
  • Catalogues
    • Pipes and Tubes
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    • Flanges
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    • High Pressure Fittings
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    • Low Pressure Fittings
    • Accessories
  • Contact
  • MYREWARDS
    • MYFAQ