1 T4 Engineering Operation &. Original Series METAL Pumps Maintenance Simplify your process WIL-10262-E-01. TA B L E O F C O N T E N T S. SECTION 1 CAUTIONS READ FIRST! ..1. SECTION 2 Wilden PUMP DESIGNATION SYSTEM ..2. SECTION 3 HOW IT WORKS PUMP & AIR DISTRIBUTION SYSTEM ..3. SECTION 4 DIMENSIONAL DRAWINGS ..4. SECTION 5 PERFORMANCE. T4 Metal A. Rubber-Fitted ..5. TPE-Fitted ..5. PTFE-Fitted ..6. Ultra-FlexTM-Fitted ..6. B. Suction Lift Curves ..7. SECTION 6 SUGGESTED INSTALLATION, OPERATION & TROUBLESHOOTING ..9. SECTION 7 ASSEMBLY / DISASSEMBLY.
2 12. Air Valve/Center Block Disassembly/Reassembly ..15. Reassembly Hints & Tips ..17. Gasket Kit Installation..18. SECTION 8 EXPLODED VIEW & PARTS LISTING. T4 Metal Rubber/TPE-Fitted ..20. PTFE-Fitted ..22. SECTION 9 ELASTOMER OPTIONS ..24. II Ozone I&. ss N. Cla NO C le Air Act 90. an s of 19. t es n ndme SEbs e Am nc ep U. D. ta leting Su Section 1. CAUTIONS READ FIRST! TEMPERATURE LIMITS: CAUTION: Blow out air line for 10 to 20 seconds Polypropylene 0 C to 79 C 32 F to 175 F before attaching to pump to make sure all pipe line PVDF 12 C to 107 C 10 F to 225 F debris is clear.
3 Use an in-line air filter. A 5 (micron) air Neoprene C to C 0 F to 200 F filter is recommended. Buna-N C to C 10 F to 180 F NOTE: When installing PTFE diaphragms, it is impor- EPDM C to C 60 F to 280 F tant to tighten outer pistons simultaneously (turning in Viton 40 C to C 40 F to 350 F opposite directions) to ensure tight fit. Wil-Flex 40 C to C 40 F to 225 F. Polyurethane C to C 10 F to 150 F NOTE: Tighten clamp bands and retainers prior to instal- Saniflex C to C 20 F to 220 F lation. Fittings may loosen during transportation.
4 PTFE C to C 40 F to 220 F NOTE: Before starting disassembly, mark a line from CAUTION: When choosing pump materials, be sure each liquid chamber to its corresponding air chamber. to check the temperature limits for all wetted compo- This line will assist in proper alignment during reas- nents. Example: Viton has a maximum limit of C sembly. (350 F) but polypropylene has a maximum limit of only CAUTION: Verify the chemical compatibility of the 79 C (175 F). process and cleaning fluid to the pump's component CAUTION: Maximum temperature limits are based materials in the Chemical Resistance Guide (see E4).
5 Upon mechanical stress only. Certain chemicals will CAUTION: When removing the end cap using significantly reduce maximum safe operating tempera- compressed air, the air valve end cap may come out tures. Consult engineering guide for chemical compat- with considerable force. Hand protection such as a ibility and temperature limits. padded glove or rag should be used to capture the CAUTION: Always wear safety glasses when operat- end cap. ing pump. If diaphragm rupture occurs, material being CAUTION: Only explosion proof (NEMA 7) solenoid pumped may be forced out air exhaust.
6 Valves should be used in areas where explosion proof WARNING: Prevention of static sparking If static equipment is required. sparking occurs, fire or explosion could result. Pump, NOTE: All non lube-free air-operated Pumps must be valves, and containers must be properly grounded when lubricated. Wilden suggests an arctic 5 weight oil (ISO. handling flammable fluids and whenever discharge of grade 15). Do not over-lubricate pump. Over-lubrica- static electricity is a hazard. tion will reduce pump performance. CAUTION: Do not exceed bar (125 psig) air supply NOTE: On cast iron Pumps equipped with PTFE.
7 Pressure. diaphragms, balls and sealing rings, PTFE gasket kits CAUTION: Before any maintenance or repair is should be utilized. attempted, the compressed air line to the pump should NOTE: UL-listed Pumps must not exceed bar (50. be disconnected and all air pressure allowed to bleed psig) air supply pressure. from pump. Disconnect all intake, discharge and air lines. Drain the pump by turning it upside down and allowing any fluid to flow into a suitable container. WIL-10262-E-01 1 Wilden PUMP & ENGINEERING, LLC. Section 2.
8 Wilden PUMP DESIGNATION SYSTEM. T4 ORIGINAL LEGEND T4/X X X X X / XXX / XX / X XX / XXXX. METAL. O-RINGS. 38 mm (1-1/2") Pump MODEL. VALVE SEAT. VALVE BALLS. SPECIALTY. CODE. Maximum Flow Rate: DIAPHRAGMS (if applicable). AIR VALVE. 307 lpm (81 gpm) CENTER BLOCK OR CENTER SECTION. AIR CHAMBERS OR CENTER SECTION. WETTED PARTS & OUTER PISTON. MATERIAL CODES. MODEL DIAPHRAGMS VALVE BALL. T4 = 38 MM (1-1/2) BNS = BUNA-N (Red Dot) BN = BUNA-N (Red Dot). WETTED PARTS BNU = BUNA-N, ULTRA-FLEX EP = EPDM (Blue Dot). & OUTER PISTON (Red Dot) FS = SANIFLEX.
9 AA = ALUMINUM / ALUMINUM EPS = EPDM (Blue Dot) [Hytrel (Cream)]. WW = CAST IRON / CAST IRON EPU = EPDM, ULTRA-FLEX NE = NEOPRENE (Green Dot). WM = CAST IRON / MILD STEEL (Blue Dot) PU = POLYURETHANE (Brown). FSS = SANIFLEX TF = PTFE (White). AIR CHAMBER / CENTER SECTION [Hytrel (Cream)] VT = VITON (White Dot). A = ALUMINUM NES = NEOPRENE (Green Dot) WF = WIL-FLEX [Santoprene . M = MILD STEEL NEU = NEOPRENE, ULTRA-FLEX (Orange Dot)]. P = POLYPROPYLENE (Green Dot) VALVE SEAT. CENTER BLOCK / CENTER SECTION. PUS = POLYURETHANE (Clear).
10 TEU = PTFE W/EPDM A = ALUMINUM*. A = ALUMINUM BACK-UP (White) BN = BUNA-N (Red Dot). P = POLYPROPYLENE TNU = PTFE W/NEOPRENE EP = EPDM (Blue Dot). AIR VALVE BACK-UP (White) FS = SANIFLEX . TSU = PTFE W/SANIFLEX [Hytrel (Cream)]. B = BRASS H = ALLOY C*. BACK-UP (White). VTS = VITON (White Dot) M = MILD STEEL*. VTU = VITON , ULTRA-FLEX NE = NEOPRENE (Green Dot). (White Dot) PU = POLYURETHANE (Brown). WFS = WIL-FLEX [Santoprene S = STAINLESS STEEL*. (Orange Dot)] VT = VITON (White Dot). WF = WIL-FLEX [Santoprene . (Orange Dot)].