604-FFC

604-FFC is a 600 series block & bleed, hard seat needle valve. The block & bleed design allows pressure to be bled off without disturbing the permanent piping installation, allowing quick and easy removal or replacement of instruments.

• 1/2" NPT connection
• Female-female, steel valve
• 100% helium leak tested to 1 x 10-4 ml/s for performance and reliability
• Blow-out proof stem provides a secondary stem seal in the full open position
• FKM O-ring seal and PTFE back-up ring below the stem threads to protect from corrosion and galling
• All stem threads are rolled for strength and ease of operation
• One-piece bonnet with a metal-to-metal seal to the valve body below the bonnet threads
• Slotted spring pin to prevent accidental loosening
• Vinyl dust cap for bonnet and stem
• Pressure rating of 10,000psi at 200°F, orifice size is 0.187"