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Check Valves <br /> cam W <br /> Swing Check Valve Vertical Check Valve <br /> Used for single-direction flow in a With Extractable Poppet...for use in <br /> horizontal pipeline and/or to check valve applications where easy <br /> isolate product in a multi-product access is to be maintained for poppet Fig. 830 <br /> handling system. Poppet and seats are metal Fig.246A removal and repair.Plate detaches from valve body <br /> and may allow some seepage over long periods allowing access to poppet/seat assembly.Poppet and <br /> of time.Expansion relief is available. seats are metal and may allow some seepage over long <br /> Options/Description periods of time. <br /> Expansion relief available(except Construction Details ID <br /> 246AL);specify 25 or 50 PSI when Body and cover plate...cast iron(epoxy coated; 1„_. 8.25•lbs <br /> ozdering. <br /> Cap...brass y Insert/poppet assembly...brass <br /> Fig.246A...brass body,cap and Casket...Viton- <br /> intemals.Threaded connections.Cold, . . D <br /> non-shock pressure limit=200 PSI WOG. Fig.246DRF AMM <br /> Fig.246ADI...same as 246A,but constructed of ductile iron. ® rlp <br /> Fig.246DRF...same as 246ADI,but with 1508 raised-face Angle Check and <br /> Banged connections. Back Pressure Valve <br /> Single Poppet/Spring Loaded... <br /> • ' ' Fig. 137...fitted with a light spring <br /> 13.50 Ibs NA NA <br /> 2"" 6.00 Itis 5.50 Its NA and soft seat and made for standard <br /> 3" 13.2 lbs 12.5 Ibs 26.75 Its check valve applications.All brass.Buna- <br /> 4" NA NA 71.00 lbs N disc(std).Teflon®and Viton®available. <br /> . Fig. l seat.Used with heavy spring and �� <br /> metal seat.Used for"back pressure' 'Fig. 137/ <br /> ® applications.All brass construction. 137B <br /> Double Poppet Vertical ""'' "" '' <br /> Check Valve <br /> ' s s <br /> For standard check valve applications 2"z 6.25 lbs 5 PSI <br /> such as"holding prime'on a pump. 3" 13.5 Ibs 7 PSI <br /> Poppet and seats are metal and may <br /> allow some seepage over long periods 'Available with expansion relief.Specify 25 PSI or 50 PSI. <br /> of time.All brass construction and Fig. 335B NOTE...opening pressure settings are approximate <br /> made to mounted in the vertical <br /> with <br /> position with product flow upward, 1 4.75•lbs' <br /> Fig.335BP...same as Fig.335B,but 2" 6.50 lbs <br /> equipped with a test plug. Vertical Check and <br /> Back Pressure Valve <br /> . Single PoppettSpring Loaded... <br /> ® Fig. 158A...fitted with a light spring and soft <br /> seat and made for standard check valve <br /> Wafer Check Valve applications.All brass.4®body is aluminum. 'Fig 158/ <br /> Buna-N disc(std).Teflon and VitonO available. 158B <br /> Used for single-direction flow in a horizontal Fig. 158B...fitted with heavy spring and metal seat. <br /> pipeline.Thin design(3/a")ideal when space is Used for"back pressure"applications.Brass. <br /> limited.YN"OD fits into 3",1508 flange bolt <br /> Pattern. _ - <br /> Construction Details a z5 s a <br /> Bodynickel plated steel j 1" 1.00 las 6 PSI <br /> Poppet. stainless steel •- - ' •- •",,j 11,' 3.00 Ibs 6 PSI <br /> ��� J 2" 5.75 lbs 6PSI <br /> O-rmgwal...Vitona Fig. 646 3" 15.0 lies 8PSI <br /> 4" 8.00 Itis 5 PSI <br /> 3" 4.25 lbs 'Available with expansion relief(1"to 4'•). Specify 25 PSI or 50 <br /> PSI. NOTE...opening pressure settings are approximate <br /> U Morrison Bros.Co. 800.553.4840 Page 17 <br />