ASCO Series Gas Valve and Motorized Actuator (158 & 159)
Description
The ASCO Series 158 Gas Valve and Series 159 Motorized Actuator are designed specifically for burner-boiler applications. The new products give OEMs, distributors, contractors, and end-users a combustion safety shutoff valve option that increases safety and reliability and enhances both flow and control.
The valve offers a higher close-off pressure of 75 psi (5.2 Bar) and ensures a safe shutoff in the event of a fuel train system failure and eliminates the need for additional safety components. The valve offers a flow rate that is twice that of other combustion valves on the market. As a result, it offers the highest BTU rating in the industry as well as the ability to deal with varying gas inlet pressures—without a reduction in burner performance and operation. Installation is also made easier with end connectors that eliminate the need for piping unions and a ventless compatible monoblock design that not only does away with the need for additional vent piping but also limits greenhouse gas and vent emissions.
The ASCO Series 158 is a gas valve range available in sizes from 3/4 to 3-in. NPT (DN 10 to DN 80) in both single and monoblock constructions. The ASCO Series 159 Motorized Actuator has a rugged construction, can mount in any position and offers a visual indication of opening. This safety shutoff valve is rated for an ambient temperature range of -40 to 150°F (-40 to 66°C) and is offered with an optional watertight National Electrical Manufacturers Association (NEMA)-approved Type 4 enclosure.
Series 158 and Series 159 meet up-to-date National Fire Protection Association (NFPA), UL, Canadian Standards Association (CSA), and FM Global standards and have earned Restriction of Hazardous Substances (RoHS) and European Standards (EN) approvals.
Specs
Series 158 | |
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Material | Die-cast aluminum |
Construction | Single and Monoblock |
Media | Fuel gas |
Pipe Sizes | 3/4 to 3 in. NPT and ISO |
Function | 2-way normally closed |
Flow Factor | From 13.3 to 126.1 Kv, From 15.4 to 145.8 Cv |
Maximum Operating Pressure Differential | 20 psi (1.4 bar) |
Ambient Temp. Range | -40 to 150° F (-40 to 66°C) |
Close Off Pressure Differential | 2.1 (30) to 5.17 (75) |
Agency Approvals | when coupled with the ASCO 159 series Actuator: UL 429, ANSI Z21.21/ CSA 6.5 C/I FM 7400 EN161 Class A RoHS |
Series 159 | |
Valve Actuation | Motorized |
Voltage | 110 AC, 120 AC, 220 AC, 230 AC |
Ambient temperature range | -40 to 150°F (-40 to 66°C) |
Power Requirement | 220 VA max. |
Actuator Function | On/Off or High/Low/Off |
Agency Approvals | when coupled with ASCO series 158: UL 429 ANSI Z21.21/ CSA 6.5 C/I FM 7400 EN 161 Class A RoHS |
Enclosure Integrity | IP10 & Type 1, IP65 & Type 4 |