SPEEDAIRE
SPEEDAIRE 4ZK77 Filter/Regulator 1/4in NPT Brass Body 150 psi 12 cfm
Filters and regulates compressed air at up to 12 cfm and 150 psi with a brass body and 5-micron particulate filter
- 5 micron particulate filter removes fine debris
- 12 cfm flow capacity supports continuous air tools
- Brass body withstands 150 psi operating pressure
- 1/4 inch NPT female inlet fits standard fittings
- Miniature series saves space on the line
1/4 in NPT Filter-Regulator
The SPEEDAIRE 4ZK77 is a miniature filter-regulator built for compressed-air lines that need clean, regulated flow at the point of use. It suits maintenance technicians, small-shop operators and anyone assembling compact pneumatic circuits where space is limited.
Brass body, 150 psi rating
The brass body handles a maximum operating pressure of 150 psi and provides the mechanical strength required for permanent installation on rigid piping. This pressure ceiling is the single figure that determines whether the unit matches the system design.
12 cfm with 5-micron filtration
At 12 cfm the regulator comfortably feeds air tools, spray guns and actuators typical of light-duty workshops. Demand above that flow or applications requiring oil removal will exceed the particulate-only filter element.
Highlights
- 5 micron particulate filter removes fine debris
- 12 cfm flow capacity supports continuous air tools
- Brass body withstands 150 psi operating pressure
- 1/4 inch NPT female inlet fits standard fittings
- Miniature series saves space on the line
Specifications
| Brand | SPEEDAIRE |
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Questions about this item
What does the 12 cfm flow rating mean when the unit is installed in my airline?
It is the maximum volume of compressed air the filter-regulator can pass at the rated pressure, so tools or circuits drawing up to that flow will not be starved.
The inlet is listed as 1/4 in NPT — what does that standard limit in practice?
NPT threads seal on taper, so the connection is limited to 1/4 inch pipe size and requires thread sealant or tape to prevent leaks at up to 150 psi.
What mounting space does the 1 1/2 in overall width need?
The body measures 1 1/2 inches wide, so allow at least that much clearance between adjacent components or panel cut-outs for the brass housing and top-mounted adjustment knob.
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