
Sensus 143-IRV-HP-1 1/4 Regulator
The Sensus 143-IRV-HP-1 1/4 Regulator is a high-performance 1.25" NPT gas regulator engineered for commercial and light industrial gas trains. Optimized for natural gas service and propane applications, this high pressure regulator features a robust cast iron body with a 125 psig working pressure rating and a large 1/2" orifice for high-capacity flow. The integrated Black Spring dynamic allows for precise outlet pressure control within the 2-6 PSI range, making it a staple for master meters and burner manifolds requiring stable downstream pressure.
Built with veteran technicians in mind, the Sensus 143-80-2HP series utilizes a union nut connection that simplifies field piping by allowing the diaphragm case to rotate without disturbing the valve body. For critical safety, this unit includes an internal relief valve (IRV) designed to mitigate overpressure conditions. The die-cast aluminum spring case and Buna-N diaphragm ensure positive dead-end lockup and consistent performance in temperatures ranging from -20°F to 150°F. When sizing this service regulator, ensure the 1" NPT vent is properly piped to a safe atmosphere to maintain the integrity of the overpressure protection system.
Key Benefits- High-Capacity Flow: The 1/2" orifice and 1.25" ports provide max throughput for industrial boilers and unit heaters.
- Field Versatility: Direct-acting union nut design enables 360-degree positioning for tight mechanical room clearances.
- Reliable Lockup: The one-piece molded Buna-N valve seat ensures superior sealing and prevents creep during no-flow periods.
- Rugged Durability: Standardized with chromate conversion coating and enamel topcoat for maximum corrosion resistance in outdoor installs.
What is the maximum inlet pressure for a 1/2" orifice?
On the Sensus 143-80 series, a 1/2" orifice typically handles a maximum inlet pressure of 20 PSI to ensure optimal regulation and prevent seat damage.
Can I use this regulator for LP gas?
Yes, this NPT gas regulator is fully compatible with propane, nitrogen, air, and dry CO2. Always apply the 0.63 correction factor for propane capacity calculations.
Does this model include Low Pressure Cut-Off (LPCO)?
No, the 143-IRV-HP is focused on high-pressure regulation with internal relief. For cut-off safety, refer to the 143-80-6 variations.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $250.16
-65%$250.16
$87.56Sensus 143-IRV-HP-1 1/4 Regulator
The Sensus 143-IRV-HP-1 1/4 Regulator is a high-performance 1.25" NPT gas regulator engineered for commercial and light industrial gas trains. Optimized for natural gas service and propane applications, this high pressure regulator features a robust cast iron body with a 125 psig working pressure rating and a large 1/2" orifice for high-capacity flow. The integrated Black Spring dynamic allows for precise outlet pressure control within the 2-6 PSI range, making it a staple for master meters and burner manifolds requiring stable downstream pressure.
Built with veteran technicians in mind, the Sensus 143-80-2HP series utilizes a union nut connection that simplifies field piping by allowing the diaphragm case to rotate without disturbing the valve body. For critical safety, this unit includes an internal relief valve (IRV) designed to mitigate overpressure conditions. The die-cast aluminum spring case and Buna-N diaphragm ensure positive dead-end lockup and consistent performance in temperatures ranging from -20°F to 150°F. When sizing this service regulator, ensure the 1" NPT vent is properly piped to a safe atmosphere to maintain the integrity of the overpressure protection system.
Key Benefits- High-Capacity Flow: The 1/2" orifice and 1.25" ports provide max throughput for industrial boilers and unit heaters.
- Field Versatility: Direct-acting union nut design enables 360-degree positioning for tight mechanical room clearances.
- Reliable Lockup: The one-piece molded Buna-N valve seat ensures superior sealing and prevents creep during no-flow periods.
- Rugged Durability: Standardized with chromate conversion coating and enamel topcoat for maximum corrosion resistance in outdoor installs.
What is the maximum inlet pressure for a 1/2" orifice?
On the Sensus 143-80 series, a 1/2" orifice typically handles a maximum inlet pressure of 20 PSI to ensure optimal regulation and prevent seat damage.
Can I use this regulator for LP gas?
Yes, this NPT gas regulator is fully compatible with propane, nitrogen, air, and dry CO2. Always apply the 0.63 correction factor for propane capacity calculations.
Does this model include Low Pressure Cut-Off (LPCO)?
No, the 143-IRV-HP is focused on high-pressure regulation with internal relief. For cut-off safety, refer to the 143-80-6 variations.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Sensus 143-IRV-HP-1 1/4 Regulator is a high-performance 1.25" NPT gas regulator engineered for commercial and light industrial gas trains. Optimized for natural gas service and propane applications, this high pressure regulator features a robust cast iron body with a 125 psig working pressure rating and a large 1/2" orifice for high-capacity flow. The integrated Black Spring dynamic allows for precise outlet pressure control within the 2-6 PSI range, making it a staple for master meters and burner manifolds requiring stable downstream pressure.
Built with veteran technicians in mind, the Sensus 143-80-2HP series utilizes a union nut connection that simplifies field piping by allowing the diaphragm case to rotate without disturbing the valve body. For critical safety, this unit includes an internal relief valve (IRV) designed to mitigate overpressure conditions. The die-cast aluminum spring case and Buna-N diaphragm ensure positive dead-end lockup and consistent performance in temperatures ranging from -20°F to 150°F. When sizing this service regulator, ensure the 1" NPT vent is properly piped to a safe atmosphere to maintain the integrity of the overpressure protection system.
Key Benefits- High-Capacity Flow: The 1/2" orifice and 1.25" ports provide max throughput for industrial boilers and unit heaters.
- Field Versatility: Direct-acting union nut design enables 360-degree positioning for tight mechanical room clearances.
- Reliable Lockup: The one-piece molded Buna-N valve seat ensures superior sealing and prevents creep during no-flow periods.
- Rugged Durability: Standardized with chromate conversion coating and enamel topcoat for maximum corrosion resistance in outdoor installs.
What is the maximum inlet pressure for a 1/2" orifice?
On the Sensus 143-80 series, a 1/2" orifice typically handles a maximum inlet pressure of 20 PSI to ensure optimal regulation and prevent seat damage.
Can I use this regulator for LP gas?
Yes, this NPT gas regulator is fully compatible with propane, nitrogen, air, and dry CO2. Always apply the 0.63 correction factor for propane capacity calculations.
Does this model include Low Pressure Cut-Off (LPCO)?
No, the 143-IRV-HP is focused on high-pressure regulation with internal relief. For cut-off safety, refer to the 143-80-6 variations.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.











