Series 31H Lug valves are drilled and tapped to meet ASME Class 125/150 and PN16 flanges. Series 31H valves are designed for manual operation only. The valve body shall be one-piece lug design with extended neck to allow for 2” of piping insulation, have flange hole drilling per international flange standards and be provided with a non-corrosive bushing and selfadjusting stem seal The valve disc edge and hub on metal discs shall be spherically machined and hand polished for minimum torque and maximum sealing capability.
Size : 2” – 20” (50mm – 500mm)
Rating : PN 16 / ASME Class 125 – Class 150
Working Pressure : 250 psi (17.2 Bar)
Body Style : Lug
Material : Cast Iron, Duclite Iron, Stainless Steel
Temperature : -20°F to 250°F (-29°C to 121°C)
Manufacturer : BRAY, Other Request
» Seat design and internal disc to stem connection isolates the line media from the body and stem
» Non-wetted connections eliminate exposed external disc to stem connections
» The disc and the stem connection minimizes hysteresis and produces maximum strength engagements
» The seat is designed to seal with slip-on or weld-neck flanges and the molded o-ring eliminates the need for flange gaskets
» The tongue and groove locks the seat in place and makes the valve dead end capable
» Resistant to dilute acids and alkalies, petroleum solvents, alcohols, greases and oils
» Resistant to humidity, water and ultraviolet radiation
» Nylon 11 has superior corrosion resistance and has been used successfully in many applications such as water, cement, food and seawater
» This proprietary coating for actuators provides superior product protection in corrosive conditions
