All 316 SS Construction. PTFE Wetted Parts

Transcription

1 All 316 SS Construction PTFE Wetted Parts

2 LD LOW PRESSURE DIAPHRAGM S e r i e s o f M e t e r i n g P u m p s SIMPLICITY IN DESIGN, OPERATION AND MAINTENANCE FEATURES: Simple Design Easy to Maintain Intrinsic Safety of Pneumatic Operation Stroke Length and Stroke Rate Adjustment High Flow Turndown Corrosion Resistant Construction All 316 SS or PTFE Wetted Parts Ease of Installation Recommended for discharge pressures below 12 PSI DISCHARGE DIAPHRAGM FACE PLATE RETURN SPRING STROKE ADJUSTER Standard Materials: Wetted Parts - 316SS or PTFE Pneumatic Section - 316SS Diaphragm - PTFE Controller - 316SS Relays - 316SS SUCTION MOTOR CHAMBER Design Improvements: Higher Flow Rates than PD Series pump models. All PTFE diaphragms for all pump sizes. PTFE-coated O-rings in contact with process fluid. FKM O-rings in contact with air/gas supply. Stroke Adjuster locks in place with a simple thumbscrew. Stroke Adjuster scale easier to read and set than previous diaphragm pump models. Check Valves for 316SS models have PTFE soft seats with 316SS balls. (LD2 & 4) Check Valves for PTFE models have PTFE soft seats with Ceramic balls. (LD2 & 4) Check Valves on LD1 models are PVDF with PVDF soft seats and Ceramic or Ruby Sapphire balls. MOUNTING BRACKET OPERATING CYCLE POWER STROKE: As the air or gas enters the MOTOR CHAMBER from the controller, the DIAPHRAGM is driven into the fluid cavity of the FACEPLATE, displacing the fluid in the FACEPLATE and extending the RETURN SPRING. As the fluid is displaced, the rise in pressure closes the SUCTION and opens the DISCHARGE. A precise amount of fluid corresponding to the stroke of the DIAPHRAGM is discharged. SUCTION STROKE: When the air or gas pressure is exhausted from the MOTOR CHAMBER, the RETURN SPRING assists the DIAPHRAGM in returning to its static position.the retraction of the DIAPHRAGM reduces the pressure in the fluid cavity, thus closing the DISCHARGE and opening the SUCTION. The fluid cavity is again filled, preparing the pump for another power stroke.

3 PERFORMANCE SPECIFICATIONS Max. Air Usage Maximum Maximum At Max. Volume Approx. Strokes Volume Volume Discharge Maximum Shipping Diaphragm Air to Per Per GPH / LPH Pressure * Air Supply PSI Bar Weight Size Fluid Minute Stroke Standard Diaphragm Models (Inch) Simplex PSI Bar Pressure (SPM) (cc) Material (STD) PSI Bar SCF/D SCM/D Lbs. Kg. CLD1-316-TFE 1.7 / TFE CLD2-316-TFE 2 1. / TFE CLD4-316-TFE 4 4. / TFE CLD1-TFE-TFE 1.7 / TFE CLD2-TFE-TFE 2 1. / TFE CLD4-TFE-TFE 4 4. / TFE NOTE: * with 1 PSI Air Supply Max VISCOSITY Maximum recommended viscosity 128 CP (Centipoise) or 6 SSU (Saybolt Seconds Universal). OPERATING TEMPERATURE The recommended operating temperature of the pumps with the corresponding faceplate and standard diaphragm material is as follows: 316 SS: +4 F (+4 C) to 18 F (8 C) PTFE: +4 F (+4 C) to 18 F (8 C) For temperatures beyond these limits, please consult the factory. STATIC SUCTION LIFT: (Inches of Water) The maximum volume of the pumps is reduced under a suction lift condition. The maximum suction lift capability for each pump is 6 inches (with the footvalve on the tank end of a rigid suction line). Max Flow Rate at 6 lift with foot valve: LD1-PTFE-PTFE.7 GPH (2.6 LPH) LD2-PTFE-PTFE 9.7 GPH (36.7 LPH) LD4-PTFE-PTFE 4. GPH (17.3 LPH) PART NUMBERING SYSTEM C - Controller *S - Solenoid Valve Control Method CLD1-1 CLD2-2 CLD4-4 PTFE 316 SS PTFE Diaphragm Diameter In Inches Wetted Parts Diaphragm Type For Duplexed Pumps: Consult Factory C LD1 PTFE PTFE Note: When choosing the solenoid option, you must specify the voltage and cycle rate required, ie. (12 VAC/6 Hz). * Old style diaphragms Dimensions W ILLIAMS MODEL A B C D E F G H J inches mm inches mm inches mm inches mm inches mm inches mm inches mm CLD1-TFE /4 NPTM 1/4 NPTM CLD /4 NPTM 1/4 NPTM CLD2-TFE /2 NPTM 1/2 NPTM CLD /2 NPTM 1/2 NPTM CLD4-TFE /4 NPTM 3/4 NPTM CLD /4 NPTM 3/4 NPTM

4 PERFORMANCE STROKE LENGTH: 1% PLUNGER SPEED: 4 SPM STROKE LENGTH: 1% PLUNGER SPEED: 4 SPM PSIG 1 PSIG PSIG PSIG 1 PSIG PSIG CLD1-TFE-TFE CLD1-316-TFE 1 STROKE LENGTH: 1% PLUNGER SPEED: 4 SPM PSIG 11 STROKE LENGTH: 1% PLUNGER SPEED: 4 SPM PSIG PSIG PSIG 1 PSIG PSIG CLD2-TFE-TFE CLD2-316-TFE STROKE LENGTH: 1% PLUNGER SPEED: 4 SPM 1 STROKE LENGTH: 1% PLUNGER SPEED: 4 SPM PSIG 1 PSIG PSIG PSIG 1 PSIG PSIG CLD4-TFE-TFE CLD4-316-TFE

5 6 W PC91 Co n t r o l Me t h o d s f o r t h e Pu m p MK xiia oscillamatic Controller STROKE RATE CONTROL KNOB CONTROL AIR PASSAGE UPPER DIAPHRAGM MIDDLE DIAPHRAGM LOWER DIAPHRAGM VALVE EXHAUST FROM PUMP 1/4 NPT NEEDLE VALVE OPTIONAL 3-1 CONTROL PORT (MK XIIB) 1/8 NPT CONTROL SPOOL TO CONTROLLER TO PUMP 1/4 NPT EXHAUST VALVE The MK XIIA Controller operates on the same operating principal as the MK X Controller. The MK XIIA has the same upper and lower chambers, but are separated with flexible diaphragms rather than sliding seals. A capillary tube, controlled by a needle valve, transfers the air/gas supply to the pump from the lower to the upper chamber. When the spool is in the highest position, a pilot plug closes a vent and opens the supply air/gas to the pump. When the spool is in its lowest position, the pilot plug prevents the supply air/gas from entering the pump, and opens the air/gas vent to let it exhaust the pump. The spool then returns to its highest position to repeat the process. CONTROLLER-PNEUMATIC RELAY COMBINATION FOR DUPLEXING PUMP POWER STROKE NO. 1 PILOT PULSES FROM CONTROLLER EXHAUST NO. 1 PRESSURE The PNEUMATIC RELAY is a pilot-operated valve designed to provide the higher air or gas flow rates necessary for for higher pressures from 1 to 1 psi. The PNEUMATIC RELAY is actuated by the pulses produced by the OSCILLAMATIC CONTROLLER. FLOW DISCHARGE RELAY PO4-6S AIR CONTROLLER PUMP 1 EXHAUST PUMP RETURN STROKE NO. 2 EXHAUST NO. 2 TYPICAL INSTALLATION FOR DUPLEXED PUMPS PUMP 1 PUMP 2 EXHAUST PUMP 2 DOUBLE ACTING Includes: 1 Controller 2 Pumps 1 Relay 1 Manifold FLOW INLET TYPICAL INSTALLATION SOLENOID VALVES The pumps can be automated by replacing the CONTROLLER with a 3-way electro-pneumatic SOLENOID VALVE. The SOLENOID VALVE can be cycled in order to achieve the desired pump output. Flow tracking can be accomplished by having a FLOWMETER or PH METER signal interpreted by our WPC91 or a PLC. 4-2mA SIGNAL 24VDC PULSE FLOW OR PH METER PRESSURE REGULATOR DRYER WPC 91, APU, OR PLC PROCESS FLUID DUMP VALVE 3-WAY SOLENOID VALVE FLOWMETER TOTALIZER PUMP CHEMICAL (1) Note the controller would not be used with the solenoid valve. Flow Tracking Controller Configuration PUMP & CONTROLLER RATE SETTING GAUGE INLET FILTER RATE DUMP VALVE DRYER PRESSURE REGULATOR PUMP & CONTROLLER FLOWMETER TOTALIZER RATE SETTING GAUGE DUMP VALVE DRYER PRESSURE REGULATOR INLET FILTER PROCESS FLUID CHEMICAL Standard Pneumatic Controller Configuration

6 PUMP ACCESSORIES DRUM GAUGES Liquid Level/Injection Rate Gauge MODELS C779WS C779WS-V C779WS/SS C779WS/SS-V 3216-CS-V-GPD-S 3216-S6-V-GPD-S MATERIALS Carbon Steel Carbon Steel - Vented Stainless Steel Stainless Steel - Vented Carbon Steel Stainless Steel AUTOMATIC DUMP VALVES Used with the Air or Gas Dryer-Filters MODELS BOWL MAX. PRESSURE ADV-1-A Plastic 1 PSI ADV-2-A Steel 2 PSI PCV12 AL Pressure Regulator FLOW SENSITIVITY RATES MAX. PRESSURE.1 PSI 2SCFM 2 PSI LIQUID CHEMICAL FILTERS 316 Stainless Steel CONNECTION OPTIONAL MODELS FILTER ELEMENT FILTER ELEMENT LCF1-2 LCF1-2 1/4 NPT 2 micron, Std 1/2 NPT 2 micron, Std 1, 2, 8 microns or 1 mesh stainless steel screen.689kpa.66m3/min 1724 kpa AIR OR GAS DRYER-FILTERS Complete with Manual Drain Valve FLOW MODELS RATES MAX. PRESSURE J1 4SCFM 1 PSI J 4SCFM PSI APU-XP Automatic Processing Unit FREQUENCY -4 SPM ACCURACY +.2% of span WPC91 Electronic Pump Controller NEMA MAX. OPERATING MODEL CLASS TEMP. MODES WPC91-GP 4X 14 6 Auto F C Manual WPC91-XP 7 Switching Committed to Delivering Fluid Metering Products, Services & Technology of the Highest Quality, and to Always Exceed Our Customer s Expectations. Milton Roy Company 21 Ivyland Road Ivyland, PA USA (8) (21) Fax: (21) info@williamspumps.com LD BROCHURE Revised 3/1 Doc# 3949