Back Pressure Regulator

Transcription

1 Back Pressure Regulator SkoFlo Valve Model BPR10000MFB OPERATION AND MAINTENANCE INSTRUCTIONS 11/13/2002

2 protected SkoFlo Valve Model BPR10000MFB OPERATION AND MAINTENANCE INSTRUCTIONS INSTALLATION PROCEDURES: 1. Install valve so that the flow is in the proper direction. The "INLET" connection and the "OUTLET" connections are MP20000 connections for 3/4" tubing using the connection adapters on the valve. These connections are marked respectively and are suitable for Autoclave Engineers or Butech fittings. 2. The "VENT" connection is not under pressure and will see fluid only if the piston seal is leaking. This connection is 1/4" NPT and may be routed to a drain or atmospheric container if desired. The "VENT" must remain free and unrestricted, and should be visible. 3. The supply pump pulsations must be adequately dampened with a pulsation dampener to avoid setting up a resonant vibration in the SkoFlo valve. This generally may occur with high flow rates and high pressure differentials. However, we highly recommend installation of a pulsation dampener in all cases. START UP PROCEDURES: 1. Open the supply isolation valve to the back pressure regulator slowly. 2. Turn the pressure adjustment handle until you are at the desired pressure. Always start at a pressure below the set pressure and increase to the desire setting. 3. The back pressure regulator is now set and further adjustments aren't required. Tighten the lock nut on the handle to avoid inadvertent changes to the adjustment. r:\msoffice\excel\ \o_manuals Page 2 of 11

3 OPERATION NOTES AND WARNINGS: 1. The SkoFlo Back Pressure Regulator has hard seats and is not designed to provide complete "bubble-tight" shut off. If tight shutoff is required, separate isolation valves should be used for shutting off the flow. Overtightening the handle will not further reduce flow. If back pressure does not increase when turning the handle in, see "Trouble Shooting Improper Valve Performance". 2. Do not flow backwards through the SkoFlo valve. Internal seals are designed for one direction only and could possibly become dislodged. 3. When lifting the SkoFlo valve, lift using M12x1.75 eyebolts in side of body. Do NOT lift using the handle as this can damage the handle. 4. Do not adjust the valve from open to closed position unless valve is pressurized to avoid the possibility of dislodging the stem seal. 5. Install a pulsation dampener between the pump discharge and the SkoFlo Back Pressure Regulator as required to avoid possible damage and noise from harmonic pulsations. 6. Install relief valve and/or burst plate upstream of the SkoFlo Back Pressure Regulator as required. 7. The vent from the spring chamber must not be blocked. Leave open to atmosphere, or route to a drain collection point at atmpspheric pressure. This vent will only have fluid in the event of a leaking piston seal. Page 3 of 11

4 MAINTENANCE NOTES: 1. Anytime that the valve is serviced, the internal pressure drop must be reset by adjusting the Top Cap on the first Second Stage. A. With valve at no inlet pressure: Install a 15,000 PSI gauge into P1 and P2 using 3/8 Autoclave fittings. Remove the Top Cap Lock Screw on the first Second Stage. Tighten the Top Cap, then back it out if necessary until a node lines up with the Lock Screw hole. B. Apply flow to the inlet at ,000 PSI. C. Read the pressure differential between P1 and P2. D. If the differential is less than 2500 PSI: Stop the flow to the valve, allowing all pressure to drain. Back out the Top Cap ONE node ONLY. CAUTION: NEVER OPEN THE TOP CAP MORE THAN 4 NODES OR ½ TURN FROM TIGHTENED POSITION AND NEVER UNDER PRESSURE. E. Repeat the flow test and readjust until the differential is PSI. F. Replace the Top Cap Lock Screw and torque to 10 foot pounds. CAUTION: WATCH THE WEEP HOLE IN THE SIDE OF THE BODY ADJACENT TO THE TOP CAP AS THE PRESSURE INCREASES. IF THERE IS ANY SIGN OF FLUID, SHUT DOWN POWER IMMEDIATELY. THE TOP CAP IS OPEN TOO FAR. 2. Replacing Seals: When replacing valve seals, it is recommended that the new seals be lubricated with Parker Super Lube or equivalent. Install backup ring on low pressure side of o-ring. Make sure the backup ring is lined up at the joint. 3. FASTENER & TORQUE SUMMARY PARTS JOINED FASTENER DESCRIPTION THREAD COMPOUND CAP LOCK SCREWS M8-25 SHCS GRADE SS NEVER SEIZE TIE ROD NUTS 7/8 NC TEFLON COATED NUT NEVER SEIZE IN/OUT ADAPTERS AUTOCLAVE PLUGS MACHINED COMPONENTS MACHINED COMPONENTS NEVER SEIZE NEVER SEIZE PRIMARY PIN HOLDER SECOND PIN HOLDER MACHINED COMPONENTS MACHINED COMPONENTS LOCKTITE #271 LOCKTITE #271 NOTE: Locktite #271 requires heat (such as a propane torch) to disassemble. TORQUE REQUIRED FT LBS FT LBS FT LBS FT LBS FT LBS FT LBS page 4 of 11

5 TROUBLE SHOOTING IMPROPER VALVE PERFORMANCE: SYMPTOM CAUSE REMEDY 1. No Flow Upstream filter is Clean or replace plugged. filter element. Back Pressure Regulator is plugged. Supply valve is shut off. Discharge line is shut off. Take apart and clean. Correct cause of plugging such as leaking filter. Open valve slowly. Open valve. 2. Excessive Fluctuations Piston Springs are Install springs in in pressure(some not installed accordance with fluctuation is normal, properly. assembly drawings particularily with the large flow rate models) Seat or pin worn Replace seat holder or damaged. or pin. 3. Back pressure not Piston Springs are Install springs in being controlled not installed accordance with by handle properly. assembly drawings Seat or pin worn or damaged. Replace seat holder or pin. Page 5 of 11

6 RECOMMENDED SPARE PARTS: QTY PART NUMBER DESCRIPTION 1 BPR10000MFB-P-5 Primary Stage Seat Holder with Seat 1 BPR10000MFB-P-8 Primary Stage Ceramic Pin 1 BPR10000MFB-S-6 Second Stage Ceramic Seat 1 BPR10000MFB-C-8 Check Stage Carbide Pin 1 BPR10000MFB-P-20 Primary Stage Seal Kit 1 BPR10000MFB-S-20 Second Stage Seal Kit 1 BPR10000MFB-C-20 Check Stage Seal Kit STORAGE: 1. When storing SkoFlo valves prior to first use, it is recommended that the valves be stored indoors. If stored outdoors, apply a light coating of protectant to the exterior of the valve. The shipping plugs in the HP INLET, RELIEF and VENT should remain in place. 2. When storing SkoFlo valves after being in use, dismantle, thoroughly cle and reassemble. Then store as noted in number 1 above. Please call the factory in Woodinville, Washington USA at phone number (425) if you have any questions. butch.short@skoflo.com page 6 of 11

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9 Page 9 of HP INLET VENT SEAL KIT, BPR5000MFA SEAL KIT, BPR5000MFA -20 KALREZ OUTLET TO NEXT STAGE PILOT TO NEXT STAGE MATERIAL LIST - Sko-Flo Valve BPR10000MFB PRIMARY STAGE ITEM QTY PART NO. DESCRIPTION MATERIALS /4 A E Adapter Nitronic 50 HS SCALE: DATE: BASE CAP BODY ADJUSTMENT HANDLE PISTON SEAT HOLDER SEAT PIN HOLDER PIN PIN SPRING PISTON SPRINGS STEM CAP CUP SEAL (ATM) CUP SEAL (SEAT HOLDER) CUP SEAL (PISTON) O-RING (STEM CAP) BACK UP RING FOR ITEM 13 BACK UP RING FOR ITEM 14 BACK UP RING FOR ITEM 15 LOCK NUT (HANDLE) O-RING (SEAT) HANDLE BUSHING SPRING WASHER STEM SEAL RETAINER RETAINING RING STEM CAP LOCK SCREW NAMEPLATE ATM Seal B U Ring BACK UP RING FOR ITEM 20 A E Adapter O-Ring Bottom Cap O-Ring Body Outlet O-Ring Pilot Outlet O-Ring SkoFlo Valve Model BPR10000MFB N 60/316L/304 SS / NI-BRONZE CERAMIC CERAMIC 17-7 SS TEFLON/ GRAPHITE/ TEFLON/ GRAPHITE/ TEFLON/ GRAPHITE/ PEAK PEAK PEAK NI-BRONZE 302 SS TEFLON/ GRAPHITE PEAK NONE APPROVED BY: DRAWN BY: FJG 10/1/01 REVISED: 11/28/06 BPR10000MFB BACK PRESSURE REGULATOR DRAWING NUMBER REV ASSEMBLY SECTION / PARTS LIST PRIMARY STAGE SF-0742 A

10 MATERIAL LIST - Sko-Flo Valve BPR10000MFB SECOND STAGE ITEM QTY PART NO. DESCRIPTION MATERIALS INLET FROM PREVIOUS STAGE 27 OUTLET TO NEXT STAGE PILOT TO NEXT STAGE BASE CAP BODY TOP CAP PISTON NITRONIC 50HS SS SEAT RETAINER SEAT CERAMIC PIN HOLDER NITRONIC 50HS SS PIN CERAMIC PIN SPRING PISTON SPRINGS 17-7 SS CUP SEAL (PISTON) TEFLON/ GRAPHITE/ O-RING (BASE CAP) O-RING (TOP CAP) O-RING (SEAT) GUIDE PIN BACK UP RING FOR ITEM 11 PEAK BACK UP RING FOR ITEM 12 PEAK BACK UP RING FOR ITEM 13 PEAK BACK UP RING FOR ITEM 14 PEAK BASE CAP LOCK SCREW TOP CAP LOCK SCREW O-RING (Body Outlet Upper) O-RING (Body Outlet Pilot) BODY ALIGNMENT GUIDE PIN Gauge Port Plug SEAT RETAINER LOCK Ring PISTON SPRING WASHER NITRONIC 50HS SS 12 9 SkoFlo Valve Model BPR10000MFB Page 10 of SCALE: DATE: NONE APPROVED BY: DRAWN BY: FJG 10/2/02 REVISED: 11/29/06 BPR10000MFB BACK PRESSURE REGULATOR DRAWING NUMBER REV ASSEMBLY SECTION / PARTS LIST SECOND STAGE SF-0743 A

11 MATERIAL LIST - Sko-Flo Valve BPR10000MFB CHECK STAGE ITEM QTY PART NO. DESCRIPTION MATERIALS OUTLET CAP BODY CONE RETAINER PISTON SEAT RETAINER SEAT CARBIDE PIN CARBIDE PISTON SPRINGS SPRING TENSIONER A E ADAPTER SET SCREW NPT PLUG /8 A E PLUG BODY ALIGNBENT PIN OUTLET CAP LOCK BOLT 317 SS TIE ROD TFE COSTED SS NUT O-RING CONE RETAINER O-RING SEAT O-RING PISTON TO CONE O-RING SPRING RETAINER O-RING OUTLET CAP O-RING A E ADAPTER BU RING TO ITEM 18 PTFE BU RING TO ITEM 19 PEEK BU RING TO ITEM 21 PTFE BU RING TO ITEM 22 PTFE 11 1 SkoFlo Valve Model BPR10000MFB Page 11 of SCALE: DATE: NONE APPROVED BY: DRAWN BY: FJG 10/2/02 REVISED: 3/30/03 BPR10000MFB BACK PRESSURE REGULATOR ASSEMBLY SECTION / PARTS LIST DRAWING NUMBER SF-0741 CHECK STAGE REV A

12 Our focus is on you our customer and for ISO 9001:2000 compliance we have prepared and request that you take the time to complete this customer satisfaction survey. Company: Contact: Phone: Please rate following categories Highly Highly Dissatisfied N/A Satisfied 1. Product Quality 2. Product Features 3. Reliability 4. After sale support 5. Implementation 6. Delivery Score from 1 (Low ) to 7 (High) (Low) N/A (High) Recommend SkoFlo to friend or colleague. Likely to Purchase Products from SkoFlo Overall quality of relationship with SkoFlo Overall level of satisfaction with SkoFlo Overall level of satisfaction with respect to Product Valve Overall level of satisfaction with respect to product engineering Level of confidence of SkoFlo abilities to provide compliant product Comments: W:\Sales\PDF & EXCEL Drawings\O & M Manuals\SFI Customer Satisfaction Survey.doc Page 1 of 1