ASCO™ HOV 148/149 SERIES: THE NEW MOTORIZED SAFETY VALVE AND ACTUATOR FROM EMERSON
Emerson has launched ASCO™ Series HOV 148/149-a solution that offers industry operators a new tool that can prevent overpressure, leakage, and system malfunctions. The new ASCO™ Series 148/149 valve and motorized actuator are designed to be used exclusively together and specialize in fuel oil fluids .
This new system meets major global approvals: it is a UL – Underwriter Laboratories Inc. listed product, FM – Factory Mutual – approved, and CSA – Canadian Standards Association certified for combustion compliance.
The modular design allows for improved features over other ASCO valves, both in performance, price, and safety.ASCO gives us a new, increasingly reliable valve suitable for recirculation of fuel oil and for safety shutoff applications.
Soon to be added is the alternative fuel-biodiesel B100 – as a compatible medium.
Description of the new product ASCO™ Series HOV 148/149
The ASCO 148/149 series consists of a compact 2- and 3-way safety shut-off valve and a motorized actuator . Designed specifically for industrial oil burner applications, this new product offers OEMs, distributors, contractors, and end users a new combustion safety shut-off valve that increases safety and reliability and improves heat production in fuel oil applications through a high flow and pressure design.
Learn more about the product details here on Emerson’s official website, section dedicated to ASCO products.
Technical drawings new safety valve solution ASCO™ Series HOV 148/149


The main advantages and improvements of the new ASCO™ Series 148/149 valve
Improved safety and robustness:
- Ambient temperature of -40°C to 65°C ensures reliability even in harsh outdoor environments.
- Robustness allows greater tolerance to fluid pressure and temperature.
- The high-pressure design provides versatile use among oil burner applications.
No. 2 Fuel oil at 60 SSU
No. 4 Fuel oil at 300 SSU
No. 5 Fuel oil at 5,000 SSU
No. 6 Fuel oil at 5,000 SSU (heated)
Ease of use and reliability:
- Customer-friendly inventory and faster delivery.
One configuration covers all needs. - Superiority of valve flow over competitors
Download here the official catalog of the new ASCO™ Series 148/149 motorized safety valve and actuator.
We at UTR Ltd. are EMERSON distributor in Italy; we are located precisely in Agliana (PT) in Tuscany. We are available for consultations and information on the brands EMERSON AVENTICS – ASCO – TOPWORX. For any questions please do not hesitate to contact us for free here.