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Two white acetal male NPT shutoff valves with quarter inch threads

Loc-Line

Loc-Line 21192 Male NPT Valve 1/4 in Pack of 2

SKU CH-QA0D-NXJF4 MPN 21192

Two corrosion-resistant acetal shut-off valves with 1/4 in male NPT threads for 1/4 in flexible hose systems

  • TypeDrain Components
  • Male NPT valve connects 1/4 in flexible hose systems securely
  • Two valves per pack support dual-line installations or spares
  • Acetal body resists corrosion and water for long service life
  • Compatible with acetone, alcohol, fuels, oils and common solvents
  • Shut-off function allows quick flow control without tools

1/4 in Male NPT Shut-Off Valves

This pack contains two Loc-Line 21192 shut-off valves with male NPT threads sized for 1/4 in. They are built from acetal for corrosion and water resistance. The valves are designed to integrate with 1/4 in Loc-Line flexible hose systems. Each valve provides a manual on/off control point for fluid flow.

Suited for coolant and lubricant lines

These valves suit machine-shop coolant systems and industrial lubricant lines carrying acetone, alcohols, oils, grease or sodium hydroxide. They are not for builders who need a different thread standard, a larger bore size or an electrically actuated valve. Buyers requiring non-threaded push-fit connections should look elsewhere.

Male NPT thread specification

The connection thread is 1/4 in male NPT, which determines compatibility with female-threaded ports and the 1/4 in Loc-Line hose system. Verify that your existing ports match this thread type and size before ordering.

Highlights

  • Male NPT valve connects 1/4 in flexible hose systems securely
  • Two valves per pack support dual-line installations or spares
  • Acetal body resists corrosion and water for long service life
  • Compatible with acetone, alcohol, fuels, oils and common solvents
  • Shut-off function allows quick flow control without tools

Specifications

TypeDrain Components
BrandLoc-Line
Model21192

Questions about this item

What does the 1/4 in NPT male thread mean when I install this valve in my coolant line?

The 1/4 in NPT male thread screws directly into a matching female NPT port on a 1/4 in Loc-Line flex hose segment, giving a sealed shut-off point without extra fittings.

How does the NPT thread standard limit what I can connect to this valve?

NPT is a tapered pipe thread; it only mates with female NPT ports, so you cannot join it to BSP, compression or push-fit fittings without an adapter.

What physical clearance do I need to mount the two valves in the pack?

Each acetal valve body fits inline on 1/4 in Loc-Line hose, so allow enough straight hose length for the valve body plus the threaded engagement on both ends.

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