Find My Check Valve
The TLW® Check Valve (Tapped Lug Wafer) was engineered for applications where exposed studs are not suitable. This non-slam spring-assisted, center-guided, lugged pattern wafer check valve is designed to prevent water hammer and reverse flow. The lightweight compact design fits between mating flanges and meets API 594 face-to-face dimensions. The TLW® Check Valve body design eliminates potential leak paths to the environment and is an easy-to-maintain check valve for applications involving liquids, gases, or steam. Tapped holes are provided in the body for lifting lugs to assist with installation (10" and larger sizes only).
Unit of Measure
Items
TLW® Wafer Check Valves

API 594 Face-to-Face 2" 316 SS Trim A351 CF8M Class 150 TLW® Wafer Check Valve

TLW® Wafer Check Valves

API 594 Face-to-Face 2" 316 SS Trim A351 CF8M Class 300 TLW® Wafer Check Valve

TLW® Wafer Check Valves

API 594 Face-to-Face 2" A216 WCB Body, 316SS Trim ANSI Class 300 TLW® Wafer Check Valve

TLW® Wafer Check Valves

API 594 Face-to-Face 2" A216 WCB Body, 316SS Trim ANSI Class 150 TLW® Wafer Check Valve

TLW® Wafer Check Valves

API 594 Face-to-Face 2" 316 SS/Viton®-F A216 WCB Class 150 TLW® Wafer Check Valve
Series N/A TLW®
ASME CLASS N/A 150 N/A 300 N/A 300 N/A 150 N/A 150
Size N/A 2.00 in
Dimension A N/A 2.38 in60 mm
Dimension B N/A 6.00 in152.40 mm N/A 6.50 in165.10 mm N/A 6.50 in165.10 mm N/A 6.00 in152.40 mm N/A 6 in152.4 mm
Dimension C N/A
O.D. N/A
Weight N/A 15 lb6.8 kg N/A 17 lb7.7 kg N/A 17 lb7.7 kg N/A 15 lb6.8 kg N/A 15 lb6.8 kg
Cracking Pressure CP N/A 0.034 bar0.5 psig
Body N/A A351 CF8M N/A A351 CF8M N/A A216 WCB N/A A216 WCB N/A A216 WCB
Temperature Rating1
N/A
Seat N/A 316 SS N/A 316 SS N/A 316 SS N/A 316 SS N/A 316 SS/Viton® F
Disc N/A
Guard N/A
Spring N/A Inconel® X-750
ANSI N/A B16.34 B16.5
Retaining Ring N/A
Available Soft Seat Materials N/A Buna-N (-70 to 250°F) EPDM (-75 to 300°F) TFE®-Viton® (-40 to 400°F) Viton® (-40 to 400°F) Zelon® (37 to 400°F)
Applications N/A Autoclaves Boiler Feed & Discharge Chemical Lines Compressor Discharge Condensate Lines Cookers Cooling Towers Crude & Refined Product Lines Cryogenics Digester Evaporators Fly Ash System Generator Inlet & Discharge Hydraulic Lines Metering Pumps Mine Dewatering Nitrogen Purge Process Lines Pump Discharge Refrigeration Steam Lines Vacuum Breaker Water Lines Water Treatment
ASTM N/A A216GR WCB A351GR CF8M
MSS N/A SP-25 SP-6 SP-61
Body Material N/A Stainless Steel N/A Stainless Steel N/A Carbon Steel N/A Carbon Steel N/A Carbon Steel
Disc/Stem Assembly N/A 316 SS/Nitronic 60
Bushing N/A A479 316
Bushing Material N/A 316 SS
Gasketing N/A CFG (Corrugated Flexible Graphite)
Other N/A API 594
ENDS N/A Wafer (RF)
Cv N/A 120
  • 1 Pressure/Temperature ratings in accordance with ASME/ANSI B16.34-2004