The ISPE model in Welker’s I-Series Instrument Regulators is a cost-effective, standalone piston-sensing instrument regulator suitable for regulating air and light gases, such as hydrogen.
With global and industrial decarbonization goals, the development and deployment of hydrogen and fuel cell technologies are growing in importance. Welker’s ISPE Instrument Regulator can be used across the hydrogen value chain to reduce the pressure of the hydrogen gas to a lower outlet pressure safe for the downstream equipment in your application, helping prevent costly damage and interruptions to operation.
Multiple flow coefficients and pressure control ranges let you adapt the ISPE to your instrument and application. The ISPE Instrument Regulators are piston-sensing, allowing for a quicker response to pressure adjustments.
A square head adjustment screw allows you to quickly and easily set the outlet pressure. With a locknut to prevent the spring setting from changing due to vibration, you can set the ISPE once and be sure the outlet pressure will remain constant.
The ISPE’s small size, lightweight construction, and flexible port configuration allow it to easily fit into small enclosures and in portable and on-vehicle applications.
|Materials of Construction||Body: Nickel-Plated Aluminum|
|Maximum Allowable Inlet Pressure||2160 psig (148 barg)||500 psig (34 barg)|
|Temperature Range*||32 °F to 392 °F (0 °C to 200 °C)|
|Ports||¼" FNPT or SAE Inlet, Outlet, Relief, and Gauge|
|Flow Coefficient (CV)||0.02|
|Pressure Control Ranges||0–25 psig (0–1.7 barg)|
|0–50 psig (0–3.4 barg)|
|0–100 psig (0–6.8 barg)|
|0–200 psig (0–13.7 barg)|
|Weight||0.5 lb (0.2 kg)|
*Operating at Temperatures Below 32 °F is Not Recommended and Could Result in Major Flow Reduction
*May Vary Based on Seal Material
Note: An upstream filter and downstream relief are required.