Es para uso horizontal o vertical?

In-line check valves can be installed horizontally or vertically.

What is the threading if i wanted to attach brass connectors to either side?

Thank you for your question on the Brass In-Line. The threading is 1/2" FIP.

Will this work with oil?

Can't say for sure, but I would say it depends on things like whether the oil is clean and how hot the oil is. I would think that it would work with clean, ambient temperature oil, but that does not take into account what the seals are made of and what kind of oil you're talking about. Some oils will degrade the seals. Not much help, but something to think about.

Max water temp and is the spring inside stainless steel?

In the industrial world, low temp is 180f or less, High temp is 181- Steam, so when someone says low temp, you can use this idem. I personally have used them on my boiler returns without a problem, just make sure you at 5ft of head for your circulator pump,

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💧 Keep your water flowing forward—no backtracking, no worries!

BUILT TO LAST - Crafted from premium brass for unmatched durability and strength
PRESSURE READY - Operates reliably between 5 PSI minimum and 200 PSI max pressure
SAFE COMPLIANT - Meets Safe Drinking Water Act standards for peace of mind
SEAMLESS FLOW CONTROL - Prevents backflow to protect your water source effortlessly
UNIVERSAL COMPATIBILITY - Fits most standard hoses with 1/2 inch female iron pipe threading

The EZ-FLO 20401LF Brass In-Line Check Valve is a compact, durable valve designed to prevent water backflow. Featuring a 1/2 inch female iron pipe threaded connection, it fits most standard hoses and withstands pressures up to 200 PSI. Made from heavy-duty brass, it ensures long-lasting performance and complies with Safe Drinking Water Act standards, making it a reliable choice for professional-grade water management.

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Manufacturer	EZ-FLO
Part number	20401LF
Item Weight	120 g
Product Dimensions	4.57 x 3.18 x 3.18 cm; 120 g
Item model number	20401LF
Size	1/2 in.
Color	Brass
Style	Brass In-Line Check Valve
Material	Brass
Item Package Quantity	1
Maximum Pressure	200 Pound per Square Inch
Included components	valve
Batteries Included?	No
Batteries Required?	No

EZ-FLO 20401LF Brass In-Line Check Valve

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