The KNG69 is an industry standard relief valve used for liquid relief and by-pass. Engineered and designed for heavy duty, industrial and commercial usages. A single piece bonnet to eliminate leakage while allowing for simple cleaning. Easy removable sealed hex-cap to adjust pressure. Valves are calibrated (set to pressure) based on a range of flow-rates (GPM) versus seat size and set pressure. Standard valve is set to pressure to achieve flow rate maximum and minimums within each set pressure range. Temperatures -60°F (-51°C) to 406°F (208°C), low reduced to -320°F (-196°C) with PTFE option, high increased to 425°F (218°C) with stainless option. Features:

• Field adjustable by simple removal of the hex-cap
• Metal to metal precision lapped seating
• Back pressure tested
• Ease of cleaning and maintenance with simple bonnet removal
• Stainless steel springs
• Single piece - 100% leak free bonnet
• Cryogenic compatible