Rupture Pin Technology Mud and Slurry Relief Valve Model I-BU

Model I-A Relief Valve • 2" and 3" FNPT – 602, 1002 and 1502 fittings. • Settings from 500 PSI to 6,000 PSI with 13 set pressure pins (see "Standard Poco Pin Settings" on right) • Change settings by changing the pin. The set pressure is shown on the pin label. The 2" and 3" valves use the same interchangeable pins. • Changeable stainless steel seat and piston are standard. Advantages: • No flow impingement on seat, seal or piston. • Reliable settings. +/–5% accuracy of set pressure. • Simple, dependable operation. One moving part. • Our valve utilizes a proven design principle – Euler's Law. • Reaches full open position in milliseconds at set pressure. • Provides a bubble-tight seal with seat washout protection. • Fatigue and pulsation are not factors that affect the set pressure of the valve.