Is the Quick-Connect Diagnostic Socket with Shut-Off Valve, GW NPT, ISO 15171-1 safe to connect under low residual pressure for diagnostics?

Yes — the Quick-Connect Diagnostic Socket with Shut-Off Valve, GW NPT, ISO 15171-1 is safe to connect under low residual pressure for diagnostics, provided the residual pressure is minimal and the system is effectively inactive. The product is designed per ISO 15171-1 and SAE J1502, features leak-free shut-off valves, flat sealing surfaces (limiting oil loss to ~0.1 ml and air inclusion to ~0.02 ml), and withstands up to 400 bar operating pressure (1300 bar burst). The manufacturer explicitly states the coupling should be performed only when the system is inactive or under minimal pressure — follow that guidance and standard safety procedures to ensure safe connection and accurate measurements.

Can the Quick-Connect Diagnostic Socket with Shut-Off Valve, GW NPT, ISO 15171-1 be used with permanently mounted hardened steel plugs without risking contamination during diagnostics?

Yes. The Quick-Connect Diagnostic Socket with Shut-Off Valve, GW NPT, ISO 15171-1 can be used with permanently mounted hardened steel plugs without risking contamination during diagnostics, provided proper procedure is followed. The socket and plug both feature advanced shut-off valves and flat sealing surfaces that minimize oil loss (≈0.1 ml) and air inclusion (≈0.02 ml), preventing ingress of contaminants when connecting and disconnecting. Compliance with ISO 15171-1 and SAE J1502 ensures interchangeability and reliable sealing with hardened steel plugs. For safe, contamination-free diagnostics, couple only when the system is inactive or at minimal pressure and use the specified hardened steel plugs integrated into the hydraulic circuit.

Socket with a shut-off valve quick coupling diagnostic with a female NPT thread, ISO 15171-1

All products, Quick-connect measurement fittings/

Additional information

Material	CS – steel (cast iron)

Socket with a shut-off valve quick coupling diagnostic, with thread internal NPT, used for measuring pressure in systems hydraulics power. made according to standards ISO 15171-1 and SAE J1502, interchangeable of couplings other manufacturers. plugs quick coupling with hardened steel are standard mounted on fixed in system hydraulic, a socket quick coupling connected are line with pressure gauge. connection socket with a plug should take place only at non-operating system, at the absence pressure or very low pressure a few bar. socket and plug equipped are in valves ensuring Leak-free connection and disconnection and tightness. Ich flat surfaces limit for minimum residual leakage oil and inclusion air for the system (leakage ok. 0.1 ml at disconnection, inclusion air ok. 0.02 ml at connecting). Dla correct operation important is retention purity surface valves. Working pressure: 400 bar. pressure bursting: 1300 bar. Vacuum: for 0.9 bar. Flow rate oil hydraulic at Δp = 3 bar: 4.2. Material: steel galvanized. sealing: NBR. Operating temperature: od -40°C up to +120°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Price	Quantity	Actions	Catalogue
PC-1PDF1	Quick coupling socket measurement PD with 1/8" NPT female	-	400	In stock	0 €		Enquiry
PC-1PDF2	Quick coupling socket measurement PD with 1/4" NPT female	-	400	In stock	0 €		Enquiry

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Socket with a shut-off valve quick coupling diagnostic, with thread internal NPT, used for measuring pressure in systems hydraulics power. made according to standards ISO 15171-1 and SAE J1502, interchangeable of couplings other manufacturers. plugs quick coupling with hardened steel are standard mounted on fixed in system hydraulic, a socket quick coupling connected are line with pressure gauge. connection socket with a plug should take place only at non-operating system, at the absence pressure or very low pressure a few bar. socket and plug equipped are in valves ensuring Leak-free connection and disconnection and tightness. Ich flat surfaces limit for minimum residual leakage oil and inclusion air for the system (leakage ok. 0.1 ml at disconnection, inclusion air ok. 0.02 ml at connecting). Dla correct operation important is retention purity surface valves. Working pressure: 400 bar. pressure bursting: 1300 bar. Vacuum: for 0.9 bar. Flow rate oil hydraulic at Δp = 3 bar: 4.2. Material: steel galvanized. sealing: NBR. Operating temperature: od -40°C up to +120°C.