SKU: RK-BLS-ST

BLS Repair Kit 50% Stainless Steel/PTFE

From $27.50

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50% Stainless Steel and Teflon filled seats for higher pressure and temperature applications. Suits 2 way 3 piece 316 Stainless Steel Ball Valves. Great for V port ball valves where the seat is exposed to the media for longer periods (max temperature rating of 200°C for v ports). Includes valve seats, washers and stem oring. Remember to operate within the pressure and temperature curve and do not site at the maximum temperature consistently. Please note that the 50/50 seat increases the torque of the ball valve

Size Torque NM Torque increase vs standard seats
1/4" 5 25.00%
3/8" 5 25.00%
1/2" 7 40.00%
3/4" 10.5 31.25%
1" 14 40.00%
1-1/4" 18.5 32.14%
1-1/2" 23 27.78%
2" 33 32.00%
2-1/2" 62 29.17%
3" 95 26.67%
4" 140 27.27%

50% stainless steel filled PTFE seats

Item Description Material Qty
1 Ball Seat 50% SS 50% PTFE 2
2 Body Gasket PTFE 2
3 Stem Packing PTFE 1 Set
4 O-Ring FFKM 1

Size 3/4" to 4" 
To Suit 316 Stainless Steel 3 piece Ball Valves
Pressure 63 BAR @ Ambient
Temperature -20°C to 220°C

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