ARMSTRONG - Steam trap connectors

Armstrong IS-4 Stainless Steel Universal Connector with Integral Strainer

Class 900 Service for Pressures up to 1,245 psig (86 bar)

The IS-4 Stainless Steel Universal Connector for high pressure and super heat steam lines. The design enables quick and easy access to replace steam traps in critical process applications without disturbing the existing piping.

All stainless steel in-line universal connector with integral strainer able to accept steam traps compatible with the 4-bolt technology. Up to Class 900 service.

With the IS-4 universal connector, you can install a 4-bolt compatible steam trap to fit most piping configurations and applications. The IS-4 combines the integrity of an all welded installation with the versatility of a quick change steam trap replacement.

The IS-4 works with Armstrong Intelligent Monitoring (AIM™) to bring intelligence to wireless technology by applying smart devices to monitor critical plant applications in real time.

• Class 900 design
• All stainless steel construction
• Integral strainer
• Exceptional corrosion resistance
• Recessed gasket surface
• Three-year guarantee against defects in materials and workmanship (connector only)

Maximum Operating Conditions
Maximum allowable pressure (connector design):

IS-4:       1,245 psig @ 900°F (85.8 bar @ 482°C)

IS-4BD:  1,100 psig @ 800°F (75.8 bar @ 426°C)

4-Bolt Connector Steam Traps Available

• SH4000
• IB4022
• IB4011

Besides 2000 Series stainless steel inverted bucket traps, the standard 360° connector or IS-2 connector with integral strainer can also be used on many Armstrong thermostatic, disc, bimetallic, and float and thermostatic traps. Any manufacturer’s two-bolt steam traps can use Armstrong connectors.

IS-2 Stainless Steel Connector with Integral Strainer 

• A full line stainless steel strainer in the connector eliminates leak points and reduces installation time
• A strainer that is not discarded when the trap is replaced
• Easy strainer screen replacement
• Optional blowdown valve
• Accommodates Armstrong’s inverted bucket, disc, thermostatic, thermostatic wafer, bimetallic, and float and thermostatic traps. Any manufacturer’s 2-bolt steam trap can also be applied to Armstrong’s  S-2 connector.

Standard 360° Stainless Steel Connector 

• A compact, lightweight assembly
• Standardization, reducing inventory
• A compact design, simplifying piping
• Accommodates Armstrong’s inverted bucket, disc, thermostatic, thermostatic wafer and bimetallic steam traps. Any manufacturer’s 2-bolt steam trap can also be applied to Armstrong’s standard connector.