Series 716: Ductile Iron Gate Valves

The series 716 valve is an all ductile-iron valve offered by AVK Overseas. It is available in flange by flange end configurations in sizes 3-inch (DN80), 4-inch (DN100) and 6-inch (DN150).

Features:

• All Ductile Iron construction for strength and light weight
• Flanges are drilled to ANSI/ASME B16.1 Class 125
• Laying lengths are to ANSI/ASME B16.10
• Pressure rated to 250 psi (PN16)
• Internal coating certified to ANSI/NSF 61
• Stainless steel stem
• Lead free
• Threads rolled in a separate cold pressing process to enhance strength
• Rolled threads ensure smooth thread edges and low operating torques
• Twice the yield strength required by AWWA eliminates bent and broken stems
• Bonnet and gland flange bolts are countersunk and capped with hot melt to totally isolate the bolts from corrosive environments
• O-ring bonnet gasket wraps each bolt to prevent corrosion
• Ductile iron wedge fully encapsulated in EPDM rubber with an integral bronze stem nut for optimum corrosion protection and precision wedge tracking
• Wiper ring - to prevent impurities from entering the stem and to protect the o-rings
• Two o-ring stem seals to reduce friction and prevent wear and tear - replaceable under full pressure
• Third o-ring stem seal protects upper stem from impurities entering from the water way
• Coating to AWWA C550 - Electrostatically applied fusion bonded epoxy coating inside and outside for excellent corrosion resistance
• Designed and built to widely recognized international standards.
• 100% testing - All valves tested to 250 PSI leak test / 500 PSI shell test as required by AWWA