NS4 Series

NS4 Series couplings feature non-spill valves in a compact size, at a great price. Use the NS4 when even a few drops pose problems regarding safety, media cost or environmental regulations. These innovative couplings are lightweight, chemically resistant and easy to use. The nonspill design effectively eliminates spills, minimizes downtime and enhances operator safety.

NS4 Series couplings are available with RFID-enabled IdentiQuik® technology. RFID-based IdentiQuik couplings redefine what's possible for controlling, protecting and streamlining fluid handling processes. IdentiQuik technology allows the robust transfer of fluid and information to identify device type or connected media, verify line connection accuracy or capture fluid and product data.


• Non-spill design
• Disconnect under pressure with no spills
• Color coding
• Instant visual differentiation of media lines
• Glass-filled polypropylene
• Durable and compatible with many chemicals


Pressure: Vacuum to 120 psi, 8.3 bar (see graph)
Temperature: 32°F to 160°F / 0°C to 71°C (see graph)
Flow Capacity: Cv~0.6 (see graph)
Spillage: <.10 cc/disconnect
Main components, valves & Thumb latch: Glass-filled polypropylene
Valve & External spring: 316 stainless steel
O-rings: EPDM (FKM optional)
Soft-touch overmold: TPV*
Color: Gray with dark gray overmold standard
(gray with red or blue overmold available)
Lubricants: Krytox® PFPE (inert)
Tubing Size: 1/8" to 3/8", 3.2mm to 9.5mm

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