Abacus 20" Class 600 RTJ Nozzle Check in full accordance with TR2000

Nozzle Check Valve

• Series 3X7 - Nozzle Check Valve
• Series 3X5 - Nozzle Check Valve

Twin (Dual) Plate Check

• Series 4X7 - Retainerless Long Pattern Twin Plate
• Series 4X4 - Double Flanged Twin Plate
• Series 9X7 - Short Pattern Twin Plate
• Series 9X9 - Long Pattern Twin Plate
• Series 4X7H - Twin (Dual) Plate Check Hub End
• Series 4x7L Twin Plate
• Series 4x7U Twin Plate
• Series 497 - Cast Iron - Short FTF Twin Plate

Axial Check Valve

• Series 9X5 - Sprung Disc Wafer Check
• Series 545 - Short Pattern Sprung Disc
• Series 7X5 - Long Pattern Sprung Disc

Single Plate Check

• Series 5X6 - Short Pattern Swing Type
• Series 5X7 - Long Pattern Swing Type
• Series 5X8 - Long Pattern Sprung Swing
• Series 5X9 - Full Bore Sprung Swing
• Series 7X6 - Short Pattern Swing Type
• Series 7X9 - Full Bore Swing Type
• Series 9X6 - Short Pattern Sprung Swing

Plastic & Lined Check

• Series 743X - Sprung Disc
• Series 943X - Swing Type
• Series 7X0 - Swing Type Wafer Check
• Series 7X1 - Sprung Disc Wafer Check
• Series 7X2 - Short Pattern Swing Type
• Series 7X4 - Short Pattern Twin Plate
• Series 9X2 - Short Pattern Sprung Swing
• Series 9X4 - Long Pattern Twin Plate