Swagelok SS-6HNRF8 Severe-Service Union-Bonnet Needle Valve, 1/2 in. FNPT, 10000 psig

Push into high-pressure territory with the SS-6HNRF8 union-bonnet needle valve. This HN Series severe-service valve is built for the hard jobs: it holds a full 10000 psig at room temperature and gives you dependable isolation and metering where lighter valves quit. The union-bonnet design lets your maintenance crew service the stem and packing without pulling the valve from the line, so you slash downtime on critical loops. The regulating stem delivers precise throttling up to 0.86 Cv, and 1/2 in. female NPT ports tie it into heavier process runs. You get 316 stainless construction, standard PTFE packing rated to 450 degrees F, and an optional Grafoil packing path for service up to 1200 degrees F. Trust it on refinery, chemical, and power-gen high-pressure headers, gauge roots, and analyzer feeds. Need Grafoil packing or a special cleaning spec? Call Collins-Oliver for a quote.

Key Features

• HN Series severe-service build rated to 10000 psig at 100 degrees F
• Union-bonnet design lets you service stem and packing without removing the valve
• Regulating stem delivers precise throttling up to 0.86 Cv
• 1/2 in. female NPT ports for heavier process and instrument runs
• 316 stainless steel body stands up to corrosive, high-pressure media
• Standard PTFE packing to 450 degrees F, optional Grafoil to 1200 degrees F

Technical Specifications

• Series: Severe-Service Union-Bonnet Needle Valves, N and HN Series
• End Connections: 1/2 in. female NPT (both ports)
• Orifice: 0.250 in.
• Cv: 0.86 maximum
• Max Working Pressure: 10000 psig at 100 degrees F (689 bar at 37 degrees C)
• Temperature Rating: -65 to 450 degrees F (-53 to 232 degrees C) with standard PTFE packing; Grafoil available to 1200 degrees F
• Stem Type: Regulating
• Packing: PTFE standard; Grafoil optional
• Body Material: 316 stainless steel