Vacuum Relief Performance Curves
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1 Vacuum Relief Valves Crispin Vacuum Relief Valves Valve Function llows air to enter system when vacuum occurs Prevents air exhaustion during pump start-up Features Cracks open to admit air at.25 PSIG differential pressure C RISPIN Vacuum Relief Valves allow large volumes of air to enter a system when a vacuum occurs, but prevent air from being exhausted upon pump start-up. If desired, this trapped air column could be exhausted by the addition of a small orifice air release valve. This controlled release allows air to act as a cushion to help prevent potential surge. Vacuum Relief Valves are installed at high points in the line, or as directed by the engineer, to relieve a vacuum due to column separation or draining the line. Vacuum Relief Performance Curves SERIES Resilient drip tight seat NSI Class 5 & Class 250 flanged connection Sizes 3 to 36 NSI Class 5 & 250 Flanged Valves MODEL INLET INLET O.D. VLVE HEIGHT W/ WEIGHT WEIGHT W/ SIZE CLSS HEIGHT R VLVE (LBS) R VLVE /2 1/2 1/4 36lbs 45lbs /4 1/2 1/4 52lbs 61lbs /4 13 1/4 56 bs 65lbs /2 13 1/4 85lbs 4lbs /4 18 1/2 70lbs 5lbs /4 18 1/2 5lbs 140lbs /2 20 4lbs lbs / lbs 176lbs /2 18 1/4 21 1/4 158lbs 183lbs /4 21 1/4 243lbs 268lbs /4 24 1/4 26lbs 24lbs /2 22 3/4 24 1/4 385lbs 410lbs / lbs 43lbs / lbs 614lbs /4 24 3/4 453lbs 42lbs /4 24 3/4 700lbs 752lbs /2 25 3/4 25 3/4 580lbs 632lbs /2 25 3/4 25 3/4 60lbs 10lbs Standard Materials NME MTERIL (Standard) BODY Cast Iron* SET Bronze w/ Buna-N Seat* DISC Bronze* BUSHING Bronze* FLNGE Cast Iron* SPRING Stainless Steel* BOLTS & NUTS Steel* *Consult factory for optional construction materials. For Sizes 1 and 2, and 18 thru 36, please consult the factory.
2 Submittal Sheet for Crispin Series 3-5 Vacuum Relief Valve Date: October, 2001 SUBMITTL SHEET FOR SERIES 8 Vacuum Relief valve(s) shall be installed at high points in the line, or as directed by the engineer to relieve a vacuum due to column separation or draining the line. The valve disc shall be center guided and held normally closed by a stainless steel spring. The seat surfaces shall be bronze and Buna-N. The minimum flow area, perpendicular to the direction of flow thru the valve, shall be equal to the pipe area. The oulet shall be protected by a hood and screen. 3-5 The valve(s) materials shall include a cast iron body, stainless steel spring, and cast bronze disc with a Buna-N seat. The inlet shall be NSI Class (5, 250) Flange. The valve(s) shall be model as manufactured by Crispin- Multiplex Manufacturing Co., Berwick, P. B OPTIONL TRIM MTERIL: STINLESS STEEL MODEL INLET SIZE OUTLET SIZE B WEIGHT # FLG. 3 HOODED # FLG. 3 HOODED # FLG. 4 HOODED # FLG. 4 HOODED # FLG. 5 HOODED # FLG. 5 HOODED Vacuum Relief Valve Parts List 1F BODY CST IRON 6 CL. B 2R RESILIENT SET CST BRONZE/BUN-N RUBBER B62/D DISC CST BRONZE B62 4 SPRING STINLESS STEEL BUSHING BRONZE B62 6 SCREW STINLESS STEEL 13 HOOD SSEMBLY STEEL N/ BOLT STEEL 307 NUT STEEL FLNGE GSKET RMSTRONG N 802 N/ 3 6 2R F
3 Valve Parts List Submittal Sheet for Crispin Series 6-24 Vacuum Relief Valve Vacuum Relief valve(s) shall be installed at high points in the line, or as directed by the engineer to relieve a vacuum due to column separation or draining the line. The valve disc shall be center guided and held normally closed by a stainless steel spring. The seat surfaces shall be bronze and Buna-N. The minimum flow area, perpendicular to the direction of flow thru the valve, shall be equal to the pipe area. The oulet shall be protected by a hood and screen The valve(s) materials shall include a cast iron body, stainless steel spring, and cast bronze disc with a Buna-N seat. The inlet shall be NSI Class (5, 250) Flange. The valve(s) shall be model as manufactured by Crispin-Multiplex Manufacturing Co., Berwick, P. ITEM DESC. MTERIL STM 1F Body Cast Iron 6 CL.B 2R Resilient Cast Bronze/ B62/ Seat Buna-N Rubber D Disc Cast Bronze B62 4 Spring Stainless Steel Bushing Bronze B62 6 Screw Stainless Steel 13 Hood Steel N/ ssembly Bolt Steel 13 Nut Steel Flange Gasket rmstrong N-802 N/ 30 Shaft Bronze B62 B 24 C OPTIONL TRIM MTERIL: STINLESS STEEL Date: October, 2001 MODEL INLET SIZE OUTLET SIZE B C WGHT # FLG. 6 HOODED # FLG. 6 HOODED # FLG. 8 HOODED # FLG. 8 HOODED # FLG. 10 HOODED # FLG. 10 HOODED # FLG. HOODED # FLG. HOODED # FLG. 14 HOODED # FLG. 14 HOODED # FLG. 16 HOODED # FLG. 16 HOODED # FLG 18 HOODED # FLG 18 HOODED # FLG. 20 HOODED # FLG. 20 HOODED # FLG. 24 HOODED # FLG. 24 HOODED R 3 1F SUBMITTL SHEET FOR SERIES
4 SUBMITTL FOR /M SERIES 10 Submittal Sheet for Crispin /M Series 3-4 w/pressure ir Release Valve ir Release Valve manufactured in compliance with NSI/WW C5 Date: October, 2001 Vacuum Relief valve(s) shall be installed at high points in the line, or as directed by the engineer to relieve a vacuum due to column separation or draining the line. The valve disc shall be center guided and held normally closed by a stainless steel spring. The seat surfaces shall be (bronze, stainless steel) and Buna-N. The minimum flow area, perpendicular to the direction of flow thru the valve, shall be equal to the pipe area. The oulet shall be protected by a hood and screen. ll Crispin Valves are hydrostatically tested at 150% of their maximum working pressure. 3-4 The valve(s) materials shall include a cast iron body, stainless steel spring, bronze disc, bushing and seat ring with a Buna- N seat. The inlet shall be NSI Class (5, 250) Flange. The valve(s) shall be model as manufactured by Crispin-Multiplex Manufacturing Co., Berwick, P. Option: Pressure ir Release Valve shall be piped out of the side of the Vacuum Relief Valve. Refer to the Pressure ir Release Valve Specification. Standard operating pressure for Crispin ir Valves is 20 to 150 PSIG. Please check one of the following if your operating needs differ: 2 to 40 PSIG 151 to 300 PSIG MODEL INLET OUTLET B WGHT. SIZE SIZE 31/M5 3 5# FLG. 3 NPT /M # FLG. 3 NPT /M5 4 5# FLG. 4 NPT /M # FLG. 4 NPT Pressure ir Release Parts 1 Valve Seat Stainless Steel Plunger Button Viton D Valve Lever Stainless Steel Screw (Drive) Stainless Steel 13 6 Ball Float Stainless Steel Hinge Pin Stainless Steel Hinge Butt Stainless Steel 240 Bolt Steel Screw Stainless Steel 13 Flange Cast Iron 6 CL.B H 1/2 NPT Body Cast Iron 6 CL.B 13 Flange Gasket rmstrong N-802 N/ 2 Plug Brass B505 Vacuum Relief Parts List 1FH* Body Cast Iron 6/CL.B 2R Resilient Seat Cast Bronze/Buna-N B62/D Disc Cast Bronze B62 4 Spring Stainless Steel Bushing Bronze B62 6 Screw Stainless Steel 13 Hood ssembly Steel N/ Bolt Steel 307 Nut Steel Flange Gasket rmstrong N-802 N/ Connecting Parts CP1 1 x 3 Nipple Steel 3 CP2 1 x CL. Nipple Steel 3 CP3 1/2 0 Elbow Malleable Iron N/ CP4 1 Gate Valve Brass N/ 1 Orifice Options DIMETER MXIMUM PRESSURE 5/32 40 PSIG 1/8 50 PSIG 3/32 85 PSIG 1/ PSIG 3/ PSiG 1/ PSiG H 24 2R 4 5 CP1 1FH CP3 CP2 CP2 2 B
5 Submittal Sheet for Crispin /PL Series 4-10 w/pressure ir Release (1 of 2) ir Release Valve manufactured in compliance with NSI/WW C5 Date: October, 2001 Vacuum Relief valve(s) shall be installed at high points in the line, or as directed by the engineer to relieve a vacuum due to column separation or draining the line. The valve disc shall be center guided and held normally closed by a stainless steel spring. The seat surfaces shall be (bronze, stainless steel) and Buna-N. The minimum flow area, perpendicular to the direction of flow thru the valve, shall be equal to the pipe area. The oulet shall be protected by a hood and screen. ll Crispin Valves are hydrostatically tested at 150% of their maximum working pressure The valve(s) materials shall include a cast iron body, stainless steel spring, bronze disc, bushing and seat ring with a Buna-N seat. The inlet shall be NSI Class (5, 250) Flange. The valve(s) shall be model as manufactured by Crispin- Multiplex Manufacturing Co., Berwick, P. Option: Pressure ir Release Valve shall be piped out of the side of the Vacuum Relief Valve. Refer to the Pressure ir Release Valve Specification. Orifice Options DIMETER MXIMUM PRESSSURE DISCHRGE RTE 5/ PSIG 105 SCFM 1/4 150 PSIG 8 SCFM 3/ PSIG 72 SCFM 5/ PSIG 61.1 SCFM 1/8 300 PSiG 46.7 SCFM Optional Trim Material: Stainless Steel 41/42 has a single piece shaft and disc. Standard operating pressure for Crispin ir Valves is 20 to 150 PSIG. Please check one of the following if your operating needs differ: 2 to 40 PSIG 151 to 300 PSIG SUBMITTL FOR /PL SERIES
6 Submittal Sheet for Crispin /PL Series 4-10 w/pressure ir Release (2 of 2) Drawing Date: October, 2001 SUBMITTL FOR /PL SERIES Pressure ir Relief Parts 1N* Seat PVC P* Seat Stainless Steel Valve Plunger Buna-N & S/S D Plunger Nut Stainless Steel 14 3W Lock Washer Stainless Steel Valve Fulcrum Stainless Steel Valve Lever Stainless Steel Link Stainless Steel Ball Fulcrum Stainless Steel 582 Ball Float Stainless Steel Ball Lever Stainless Steel 240 Bearing Pin Stainless Steel 582 Bearing Pin Stainless Steel Bearing Pin Stainless Steel Cotter Pin Stainless Steel Bolt Steel Nut Steel Top Cast Iron 6CL.B 20 Flange Cast Iron 6CL.B 21 Body Cast Iron 6CL.B 22 Fulcrum Washer Fiber N/ 22 Fulcrum Washer Fiber N/ 23 Seat Gasket Buna-N Rubber D Flange Gasket rmstrong N Bolt Stainless Steel 13 2 Plug Brass B505 (*) Parts are interchangable and optional at customers request. MODEL INLET SIZE OUTLET SIZE B WGHT. 41/PL10 4 5# FLG. 4 Hooded /PL # FLG. 4 Hooded /PL10 6 5# FLG. 6 Hooded /PL # FLG. 6 Hooded /PL10 8 5# FLG. 8 Hooded /PL # FLG. 8 Hooded /PL # FLG. 10 Hooded /PL # FLG. 10 Hooded Vacuum Relief Parts List 1FH Body Cast Iron 6/CL.B 2R Resilient Seat Cast Bronze/Buna-N B62/D Disc Cast Bronze B62 4 Spring Stainless Steel Bushing Bronze B62 6 Screw Stainless Steel 13 Hood ssembly Steel N/ Bolt Steel 307 Nut Steel Flange Gasket rmstrong N-802 N/ 30 Shaft Bronze B62 Connecting Parts CP1 1 x 3 Nipple Steel 3 CP2 1 x CL. Nipple Steel 3 CP3 1/2 0 Elbow Malleable Iron N/ CP4 1 Gate Valve Brass N/
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