MODEL C-PRV PRESSURE REDUCING REGULATOR TECHNICAL BULLETIN C-PRV TB FEATURES CAUTION DO NOT APPLY IN CONTINUOUS STEAM SERVICE!

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Abraham Byrd
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1 TECHNICAL BULLETIN C-PRV TB 1-95 MODEL C-PRV PRESSURE REDUCING REGULATOR The Model C-PRV* is a 316L SST self-contained pressure reducing regulator designed for liquid or gaseous fluids utilized in sanitary biotechnological process piping systems. The unit is capable of controlling outlet pressure between 1-75 psig ( Barg) with a maximum inlet pressure of 15 psig (1.3 Barg). FEATURES 1" MODEL C-PRV with Investment Cast Body CAUTION DO NOT APPLY IN CONTINUOUS STEAM SERVICE! APPLICATIONS Used in pharmaceutical industry in production of many health care products for both human and animal consumption. Widely applied for processed food production candy, beverages, nutritional supplements and artificial sweeteners. May also be used in cosmetics production and specialty chemicals. Would be found supporting fermenters, batching tanks, cookers, dryers and other similar equipment. Clean-in-Place (CIP): Steam-in-Place (SIP): Self-Draining: Readily Accessible: Polished Interior: Wetted Materials Construction: Contained Guiding: 3A Construction: Patented lock-open feature on the spring chamber area allows the regulator to be cleaned with 5 psig (3.45 Barg) cleaning solution. The combination of materials allows for steam-in-place up to 2 psig (1.38 Barg) of saturated steam. Angle style body with bottom inlet and side outlet. Unit can be easily and quickly disassembled in line for inspection and manual cleaning without the use of tools. Interior of body surface polished to 1 micro-inch R a finish with electro-polished exterior. All metallic wetted parts of 316LSST. All diaphragms and some plug/stem selections are of non-metallic materials. Unit is cleaned to Cashco Spec. #S All guiding for the plug is contained in the spring chamber area to eliminate particle generation. Selection of the metallic plug/stem constructions meets 3A Sanitary Standards, Authorization No. * Patented

2 SPECIFICATIONS Body Connections: Body Size and Material: Spring Chamber: Body Design Pressure Rating: Sanitary Tri-Clamp designed to seal against weld-type clamp liners per ISO (Lower inlet, side outlet connection.) 1" and 1-1/2" (25 and 4 mm) size. ASTM A182, Gr. F316L; Forged 316L SST for superior quality and finish. Interior and exterior of body material is electro-polished. 1" (25 mm) size only. ASTM A351, Gr. CF3M; Investment Cast 316L SST. Interior of standard body material is mechanically polished to 1 micro-inch R a finish with electro-polished exterior. See Table 4 for dimensions. ASTM A351, Gr. CF8M; Cast 316 SST. Electro-polished. 15 psig (1.3 Barg); inlet & outlet. Range Springs: SST. psig (Barg) 1-3 ( ) 1-75 ( ) NOTE: Contact the factory for settings below 1 psig (.69 Barg). Operating Temperature: Maximum Pressure Drop: Maximum CIP Conditions: Maximum SIP Conditions: Capacity: Wetted Trim Materials: 4 to 3 F (4 to 149 C) Function of range spring and setpoint pressure utilized; see Table 1. Maximum Cleaning Fluid: Pressure = 5 psig (3.45 Barg); Temperature = 3 F (149 C). Maximum Steaming Fluid: Saturated; Recommended Pressure at 2 psig (1.38 Barg); Acceptable Pressure to 3 psig (2.7 Barg), but with reduced elastomer life. Up to 5. Cv. See Table 1. Max C v with Plug Locked Wide Open (Use for Relief Valve Sizing) Body Size Inch (mm) Cv 1" (25) /2" (4) 9.5 Trim Material Combinations (Non-3A) Trim Designation Nos. Part R1 R3 Diaphragm * EPDM Silicone Stem & Plug Ryton ** Ryton ** * Diaphragms are molded to stem. These materials conform with FDA Code of Federal Regulations Title 21, Part ** Ryton -polyphenylene sulfide - a thermoplastic, conforms with FDA Code of Federal Regulations Title 21, Part Both the Ryton Stem, Plug and adhesive were submitted and approved as meeting the standards of USP XXII, Class V Biological Test for Plastics, Case Study #T91M152 and #T91M158, respectively, and are on file. Trim Material Combinations (3A Approved) Trim Designation Nos. Part LE LC Diaphragm * EPDM Silicone Stem & Plug 316LSST 316LSST * Diaphragms are molded to stem. These materials conform with FDA Code of Federal Regulations Title 21, Part The adhesive was submitted and approved as meeting the standards of USP XXII, Class V Biological Test for Plastics, Case Study #T91M158 is on file. Figure 1: Forged Body, Model C-PRV Non-Wetted Trim Materials: Special Cleaning: Castings - CF8M (316SST) Barstock SST All cast parts electro-polished. All units are cleaned per Cashco Spec.

3 Pressure reducing regulators are control devices intended for continuous duty in throttling service. These regulators are not designed for shutoff service. The following procedure will help determine the minimum suitable selection for an application. STEP 1. STEP 2. STEP 3. STEP 4. SETPOINT P2, OUTPUT PRESSURE, psi (INCREASING) MINIMUM CONTROLLABLE FLOW FIVE KNOWNS. The following minimal parameters / information must be available before a selection procedure can begin: a. Service Fluid - What is it? Liquid or gas? SG (std. cond.). b. Inlet Pressure - P 1 (upstream pressure). c. Outlet Pressure - P 2 (downstream pressure). How much can P 2 vary as flow varies? d. Desired capacity - Cv, GPM, SCFH; minimum & maximum. e. Fluid temperature - T 1, SG (actual). INLET PRESSURE. Assure that the actual design inlet pressure and temperature limits do not exceed the limits indicated in the Specifications section. PRESSURE DROP. Check the maximum pressure drop (P 1 - P 2 ) in Table 1. OUTLET PRESSURE. All self-contained pressure reducing regulators droop or falloff from a setpoint pressure level at a given flow as the flow rate increases. LOCKUP REGULATOR FLOW RATED CAPACITY This deviation in setpoint is described as % droop. Droop is expressed on increasing flow, starting from a minimum flow level. The % droop must be known to enter the capacity tables. The acceptable level of setpoint deviation should be known for the min-to-max flow variation. A regulator may have a setpoint up to 15% below the lower stated range spring level. (Tags will show the standard ranges.) A setpoint above the higher range spring level is not recommended. Setpoint at the upper limit of a range spring is acceptable. APPLICATION AND SELECTION DROOP (OFFSET) (INCREASING) MAX FLOW (PLUG WIDE STEP 5. STEP 6. If final setpoint is questionable and expected near the upper limit, the next higher range spring should be utilized. Best performance will be obtained when the lowest range spring is utilized. CAPACITY. Using the five knowns of Step 1, calculate the required C v. If a liquid, determine the flow description non-, partial, excess partial, or full cavitation. DO NOT APPLY MODEL C-PRV IN EXCES- SIVE PARTIAL CAVITATION OR FULL CAVITATION CONDITIONS!! For liquids that are cavitating, consideration should be given to use multiple units in series to state the pressure and prevent excessive partial or full cavitation from occurring. For Example: Fluid = Water GPM = 1. Max., 4. Min. P 1 = 12 psig P 2 = 25 psig T 1 = 18 F Preliminary Calc. C v = 1.9 Flow Description = FULL CAVITATION.. Must Stage 1st Stage P 1 = 12 psig P 2 = 55 psig Calc. C v = 1.22 Flow Descript = Non-Cavitating % Droop (deviation of setpoint) = 11% 1-75 psig range spring Set 55 psig 2nd Stage P 1 = 55 psig P 2 = 25 psig Calc. C v = 1.8 Flow Descript = Non-Cavitating % Droop (deviation of setpoint) = 15% 1-3 psig range spring Set 25 psig Spacing between in-series units must be a minimum of 2 feet (.6 meters). TRIM MATERIAL. Select the desired trim material with 3A Approval applying to LE and LC trims. Refer to IOM-C-PRV for complete cleaning procedures and maintenance instructions. 3

4 Max. Inlet Set Pressure Droop Max. Inlet Set Pressure Droop TECHNICAL SPECIFICATIONS TABLE 1 CAPACITY - Cv (F L =.8) 1" (25mm) SIZE Range Spring 1-3 psig Range Spring 1-75 psig TABLE 2 WATER CAPACITY GPM S.G = 1. T = 6 F L =.8 1-1/2" (4mm) SIZE Range Spring 1-3 psig Droop Range Spring 1-75 psig Droop Max. Pressure Drop psig Barg psig Barg 1% 2 % 1% 2% 3% psid (Bard) 6 (4.1) 1 (.69) (3.59) 65 (4.4) 15 (1.3) (3.65) 7 (4.8) 2 (1.38) (3.72) 75 (5.1) 25 (1.72) (3.79) 8 (5.5) 3 (2.7) (3.86) Max. Pressure Drop psig Barg psig Barg 1% 2% 1% 2% 3% psid (Bard) 11 (7.5) 1 (.69) (7.3) 115 (7.9) 15 (1.3) (7.1) 12 (8.2) 2 (1.38) (7.17) 125 (8.6) 25 (1.72) (7.24) 13 (8.9) 3 (2.7) (7.31) 135 (9.3) 35 (2.41) (7.38) 14 (9.6) 4 (2.75) (7.45) 145 (1.) 45 (3.1) (7.51) 15 (1.3) 5 (3.45) (7.59) 15 (1.3) 55 (3.79) (7.31) 15 (1.3) 6 (4.14) (7.3) 15 (1.3) 65 (4.48) (6.76) 15 (1.3) 7 (4.83) (6.48) 15 (1.3) 75 (5.17) (6.2) 1-3 psig RANGE SPRING Outlet Inlet 1" (25mm) SIZE 1-1/2" (4mm) SIZE Pressure Pressure Droop Droop P2, psig P1, psig 1% 2% Max. GPM 1% 2% 3% Max. GPM HI DP HI DP HI DP 7 HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP 8 HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP 8 HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP Moderate level of cavitation. Full cavitation. NOTE: Where "HI DP" is indicated, the actual pressure drop has exceeded the recommended limits in Table

5 TABLE 2 (cont.): WATER CAPACITY GPM S.G = 1. T = 6 F L = psig RANGE SPRING Outlet Inlet 1" (25mm) SIZE 1-1/2" (4mm) SIZE Pressure Pressure Droop Droop P2, psig P1, psig 1% 2% Max. GPM 1% 2% 3% Max. GPM HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP HI DP Moderate level of cavitation. Full cavitation. NOTE: Where "HI DP" is indicated, the actual pressure drop has exceeded the recommended limits in 5

6 TABLE 3 NITROGEN CAPACITY SCFH S.G =.987 T = 6 (F L =.8) 1 3 psig RANGE SPRING Outlet Inlet 1" (25 mm) SIZE 1-1/2" (4 mm) SIZE Pressure Pressure Droop Droop P2, psig P1, psig 1% 2% Max. SCFH 1% 2% 3% Max. SCFH ,11 5,88 1,11 1,79 2,4 11, ,25 6,62 1,25 2,1 2,7 12, ,38 7,37 1,38 2,24 3,1 14, ,52 8,11 1,52 2,46 3,31 15,4 5 1,7 1,8 9,59 1,8 2,92 3,91 18,22 6 1,24 2,8 HI DP 2,8 3,37 HI DP HI DP 7 HI DP HI DP HI DP HI DP HI DP HI DP HI DP ,55 5,72 1,33 2,31 3,5 1, ,79 6,61 1,53 2,67 3,52 12, ,1 1,99 7,37 1,71 2,98 3,92 14, ,22 2,19 8,11 1,88 3,28 4,31 15,4 5 1,44 2,59 9,59 2,22 3,87 5,1 18,22 6 1,66 2,99 11,7 2,57 4,47 5,89 21,3 7 HI DP HI DP HI DP HI DP HI DP HI DP HI DP 25 1,17 1,88 4,72 1,33 2,18 2,98 8,96 3 1,54 2,47 6,21 1,75 2,87 3,92 11, ,8 2,88 7,24 2,4 3,35 4,58 13, ,1 3,22 8,9 2,28 3,74 5,11 15,37 5 2,38 3,82 9,59 2,7 4,43 6,6 18,22 6 2,75 4,41 11,7 3,12 5,11 7, 21,3 7 3,11 5, HI DP 3,54 5,8 HI DP HI DP 8 HI DP HI DP HI DP HI DP HI DP HI DP HI DP 3 1,35 2,16 4,96 1,71 2,67 3,53 9, ,8 2,89 6,63 2,28 3,57 4,72 12,59 4 2,12 3,4 7,79 2,68 4,19 5,55 14, ,6 4,17 9,57 3,29 5,15 6,81 18,18 6 3,1 4,83 11,7 3,81 5,96 7,88 21,3 7 3,41 5,47 HI DP 4,32 6,75 8,94 HI DP 8 HI DP HI DP HI DP HI DP HI DP HI DP HI DP 35 2,15 2,42 5,19 1,92 3,17 4,7 9,86 4 2,9 3,27 7,1 2,59 4,27 5,49 13, ,86 4,35 9,33 3,45 5,69 7,31 17,73 6 4,57 5,15 11,5 4,9 6,74 8,66 21, 7 5,2 5,85 12,55 4,64 7,66 9,84 23,85 8 5,81 6,54 HI DP 5,19 8,56 HI DP HI DP NOTE: Where "HI DP" is indicated, the actual pressure drop has exceeded the recommended limits in Table

7 TABLE 3 (cont.): NITROGEN CAPACITY SCFH S.G =.987 T = 6 (F L =.8) 1 75 psig RANGE SPRING Outlet Inlet 1" (25 mm) SIZE 1-1/2" (4 mm) SIZE Pressure Pressure Droop Droop P2, psig P1, psig 1% 2% Max. SCFH 1% 2% 3% Max. SCFH , ,16 11, , ,31 12, ,37 6 1, 1,46 14, , ,1 1,61 15, ,13 9, ,3 1,9 18, ,31 11,7 91 1,51 2,19 21, ,48 12,55 1,3 1,71 2,49 23, ,66 14,4 1,15 1,91 2,78 26,67 9 1,9 1,83 15,52 1,27 2,11 3,7 29,48 1 1,19 2,1 17, 1,39 2,31 3,37 32, , ,2 1,55 1, , ,39 1,79 12, ,1 7, ,55 1,99 14, ,22 8,11 1,5 1,7 2,19 15, ,44 9,59 1,25 2,1 2,59 18,22 6 1,6 1,66 11,7 1,44 2,32 2,99 21,3 7 1,21 1,88 12,55 1,63 2,64 3,39 23,85 8 1,35 2,11 14,4 1,82 2,95 3,79 26,67 9 1,49 2,33 15,52 2,2 3,26 4,19 29,48 1 1,63 2,55 17, 2,21 3,57 4,59 32, , ,21 1,6 8, ,14 6, ,59 2,11 11, ,33 7,24 1,1 1,85 2,46 13, ,49 8,9 1,23 2,7 2,75 15, ,13 1,76 9,59 1,46 2,45 3,26 18,22 6 1,31 2,4 11,7 1,68 2,83 3,76 21,3 7 1,48 2,31 12,55 1,91 3,21 4,27 23,85 8 1,66 2,58 14,4 2,13 3,59 4,77 26,67 9 1,83 2,86 15,52 2,36 3,97 5,28 29,48 1 2,1 3,13 17, 2,58 4,35 5,78 32, ,13 4,96 9 1,46 1,97 9, ,51 6,63 1,21 1,95 2,64 12,59 4 1,1 1,78 7,79 1,42 2,29 3,1 14,81 5 1,24 2,18 9,57 1,74 2,81 3,81 18,18 6 1,44 2,52 11,7 2,1 3,25 4,41 21, ,63 2,86 12,55 2,28 3,69 5, 23,85 8 1,82 3,2 14,4 2,55 4,13 5,59 26,67 9 2,2 3,54 15,52 2,82 4,56 6,18 29,48 1 2,21 3,88 17, 3,9 5, 6,77 32, ,69 4,72 HI DP 3,77 6,9 HI DP HI DP ,43 5,19 1,4 1,78 2,35 9,86 4 1,5 1,93 7,1 1,4 2,4 3,17 13,31 5 1,4 2,58 9,33 1,87 3,19 4,22 17,73 6 1,66 3,5 11,5 2,21 3,78 4,99 21, 3 7 1,88 3,46 12,55 2,51 4,29 5,67 23,85 8 2,11 3,87 14,4 2,81 4,8 6,34 26,67 9 2,33 4,28 15,52 3,1 5,31 7,1 29,48 1 2,55 4,69 17, 3,4 5,81 7,68 32, ,11 5,71 HI DP 4,14 7,8 9,36 HI DP ,68 5,41 1,19 2,1 2,72 1,28 5 1,5 2,71 8,75 1,92 3,25 4,39 16,62 6 1,86 3,36 1,84 2,39 4,3 5,44 2, ,16 3,88 12,53 2,76 4,66 6,29 23,81 8 2,41 4,35 14,4 3,9 5,22 7,5 26,67 9 2,67 4,81 15,52 3,41 5,77 7,79 29,48 1 2,92 5,27 17, 3,74 6,32 8,53 32, ,56 6,42 HI DP 4,55 7,7 1,39 HI DP 5 1,16 2,21 5,82 1,72 2,55 3,46 11,6 6 1,91 3,64 9,57 2,83 4,19 5,68 18,18 7 2,39 4,54 11,95 3,54 5,23 7,1 22, ,77 5,26 13,84 4,1 6,6 8,22 26,3 9 3,1 5,89 15,49 4,58 6,78 9,2 29,43 1 3,4 6,46 17, 5,3 7,45 1,1 32, ,14 7,87 2,7 6,13 9,7 12,3 39,34 6 1,89 3,4 8,29 2,7 4,66 5,51 15,75 7 2,58 4,63 11,3 3,68 6,35 7,5 21,46 8 3,8 5,53 13,49 4,4 7,58 8,96 25, ,5 6,29 15,33 5, 8,62 1,18 29,13 1 3,87 6,96 16,97 5,53 9,54 11,27 32, ,72 8,49 2,7 6,75 11,64 13,75 39, ,57 1,1 HI DP 7,96 13,72 HI DP HI DP 7 2,14 3,8 8,85 3,33 5,57 7,4 16,81 8 2,94 5,22 12,13 4,56 7,64 9,66 23, ,52 6,25 14,54 5,47 9,16 11,57 27,63 1 4, 7,11 16,54 6,22 1,42 13,17 31, ,1 8,9 2,7 7,78 13,4 16,47 39, ,91 1,5 HI DP 9,18 15,38 HI DP HI DP 8 1,99 3,44 6,9 3,37 5,9 6,82 13,11 9 3,35 5,79 11,62 5,67 8,58 11,48 22, ,23 7,32 14,69 7,17 1,84 14,52 27, ,8 1,3 2,14 9,83 14,87 19,9 38, ,2 12,13 HI DP 11,89 17,98 HI DP HI DP NOTE: Where "HI DP" is indicated, the actual pressure drop has exceeded the recommended limits in 7

8 TABLE 4 DIMENSIONS & WEIGHTS ENGLISH UNITS Regulator Size FORGED BODY-inch Shipping Weight (Inches) A B C D E lbs. 1" /2" INVESTMENT CAST BODY 1" METRIC UNITS Regulator Size FORGED BODY-mm Shipping Weight (mm) A B C D E kgs. (25) (4) INVESTMENT CAST BODY (25) INVESTMENT CAST BODY MODEL C-PRV PRODUCT CODE 11/1/94 TABLE 2 SST BODY / SPRING CHAMBER BODY SIZES CODE 316L Forged Body / 316 Investment Cast All F 316L Investment Cast / 316 Investment Cast 1" only M TABLE 1 SIZE CODE 1" 6 Trim TABLE 4 1-1/2" 8 Designation SST RANGE SPRING Size PSIG CODE Tri-Clamp Range Fitting spring Connections CL Body/Spg. Chamber Material 7 MODEL C-PRV PRESSURE REDUCING REGULATOR STAINLESS STEEL TRIM DESIG. NO. CODE DESIG. NO. CODE R1 R1 LE LE R3 R3 LC LC NON-3A APPROVED 1 TABLE 3 3A APPROVED B Cashco, Inc P.O. Box 6 Ellsworth, KS PH (913) Fax # (913) Printed in

MODEL 5381 PRESSURE REDUCING REGULATOR 5381-TB TECHNICAL BULLETIN FEATURES APPLICATIONS. ISO Registered Company

MODEL 5381 PRESSURE REDUCING REGULATOR 5381-TB TECHNICAL BULLETIN FEATURES APPLICATIONS. ISO Registered Company TECHNICAL BULLETIN 5381-TB 03-16 ISO Registered Company MODEL 5381 REDUCING REGULATOR The Model 5381 is a stainless steel pressure reducing regu la tor designed to handle small to mid-capacity flow rates