Instructions–Parts List HIGH–FLO SERIES 307707ZAP Surge Tanks ENG These tanks reduce fluid surging in a high– or medium–volume, low–pressure fluid system. For professional use only. Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions.
Table of Contents Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Installation All Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Models 238983, 238984, 238985, 238986, 238987, 238988, 218509, and 220157 . . 6 Model 233736 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Operation All Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols Warning Symbol Caution Symbol WARNING CAUTION This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions. This symbol alerts you to the possibility of damage to or destruction of equipment if you do not follow the instructions. WARNING EQUIPMENT MISUSE HAZARD Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury. INSTRUCTIONS This equipment is for professional use only.
WARNING FIRE AND EXPLOSION HAZARD Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and result in a fire or explosion and serious injury. Ground the equipment. See Grounding on page 5. If there is any static sparking or you feel an electric shock while using this equipment, stop pumping immediately. Do not use the equipment until you identify and correct the problem.
Installation All Models Grounding Ground the tank and the rest of your system. See Fire and Explosion Hazard on page 4. Static electricity is generated by the flow of fluid through the pump and hose, but it is dissipated through proper grounding. If every part of the spray system is not properly grounded, sparking may occur, and the system may become hazardous. Sparking may also occur when plugging in or unplugging a power supply cord.
Installation Models 238983, 238984, 238985, 238986, 238987, 238988, 218509, and 220157 NOTE: Refer to page 8 to install Model 233736. Installing the Tank Use Stand Kit 218742 to mount the tank to the floor. See the Stand Mounting Hole Layout on page 22. Secure the stand (B) to the floor with M19 (5/8 in.) bolts that engage at least 152 mm (6 in.) into the concrete floor to prevent the tank from tipping. Horizontal / Vertical Mounting All surge tanks can by mounted horizontally or vertically.
Installation Models 238983, 238984, 238985, 238986, 238987, 238988, 218509, and 220157 Stand Kit K L L K J J B Models 218509, 238983, 238984, 238985, 238986, 238987, 238988 Model 220157 Fig. 2 B 7140B J* Typical Installation J* KEY A B C D E F G H J Surge tank Stand Fluid shutoff valve Fluid line Mix tank High-Flo pump Ground wire* Fluid drain valve* Bleed-type master air valve* F G* E * Required for safe operation. Must be purchase separately.
Installation Model 233736 Model 233736 surge tank (A) must be installed horizontally (see Fig. 4). Install the surge tank on a short riser tube (B) off the fluid supply line (D). The air inlet must face up. Install an air pressure regulator (M) and a ball valve (N) on the air supply line (P) to the surge tank. The air regulator controls the air pressure in the tank. The ball valve prevents air from escaping from the tank during operation. Install a fluid valve (T) on the riser tube (B).
Operation All Models Pressure Relief Procedure WARNING To reduce the risk of an injury from splashing fluid or moving parts, follow the Pressure Relief Procedure whenever you Are instructed to relieve the pressure Stop dispensing Check or service any of the system equipment Install or clean any system components 1. Turn off the power to the pump. 2. In a hydraulic system, close the hydraulic shutoff valves. 3.
Operation Models 238983, 238984, 238985, 238986, 238987, 238988, 218509, and 220157 WARNING Always follow the Pressure Relief Procedure on page 9 before you remove the surge tank for any reason. Tighten all fluid connections securely before each use. Never try to stop or deflect leaks with your hand or body. Be sure the drain valve connected to the surge tank is closed before you start the system. Always keep hands away from the end of the drain valve when opening it.
Operation Models 238983, 238984, 238985, 238986, 238987, 238988, 218509, and 220157 relief valve cap Model 218509 shown tank charge valve cap tank charge valve 7142B Fig.
Operation Model 233736 WARNING Always follow the Pressure Relief Procedure on page 9 before you remove the surge tank for any reason. Relieving Air Pressure in the Tank To manually relieve air pressure in the tank, back out the plug (11). Fill the Tank with Fluid Tighten all fluid connections securely before each use. 1. Charge the surge tank with air, as described at left. Never try to stop or deflect leaks with your hand or body. 2. Open the fluid valve (T).
Troubleshooting WARNING CAUTION To reduce the risk of serious injury, including splashing fluid in the eyes or on the skin, always follow the Pressure Relief Procedure on page 9 before you check or service the surge tank or remove the surge tank from the system. Problem If you replace the diaphragm, do not attempt to make a new one yourself. Use only genuine Graco parts. Other materials may not stand up to the pressures developed in the tank or to the fluid being pumped.
Service (Models 218509 and 220157) Installing Diaphragm and Seal Repair Kit Diaphragm and Seal Repair Kits are available and can be ordered separately as follows: Kit 218799, for Model 218509 surge tank Kit 234118, for Model 220157 surge tank WARNING Follow the Pressure Relief Procedure on page 9 before you check or service the surge tank or remove the surge tank from the system. All fluid and gas charge pressure must be relieved completely before you attempt any service.
Service (Models 238983, 238984, 238985, 238986, 238987, 238988) Installing Diaphragm Repair Kit Diaphragm and Seal Repair Kit 248079 is available and can be ordered separately. WARNING Follow the Pressure Relief Procedure on page 9 before you check or service the surge tank or remove the surge tank from the system. All fluid and gas charge pressure must be relieved completely before you attempt any service. See the Parts Drawing on page 19. Reassembly 1.
Service (Model 233736) Diaphragm Repair WARNING Follow the Pressure Relief Procedure on page 9 before you check or service the surge tank or remove the surge tank from the system. All fluid and gas charge pressure must be relieved completely before you attempt any service. See the Parts Drawing on page 20. Disassembly 1. To manually relieve air pressure in the tank, back out the plug (11). 2. Disassemble the surge tank by removing the cap screws (8). 3.
Parts Model 218509, Series E carbon steel, 2 npt(f) inlet/outlet 6 2 27 26 28 2 25 29 31 2 1 7 Detail 38 38 see detail 7143A 1b 1b 1a 1b 8 3 1 Torque to 63 to 73 N-m (46 to 54 ft-lb). 2 Apply thread sealant and thread tape to pipe threads before reassembling. Ref No. Part No. 1 218799 1a 1b 2 3 4 6 7 8 25 26 107596 107541 107539 104031 180667 180557 180969 108147 Description REPAIR KIT, surge tank; includes items 1a, 1b, and 38 . DIAPHRAGM . O–RING .
Parts Model 220157, Series E electropolished stainless steel, 1.25 npt(f) inlet, 1.25 npt(f) outlet 27 2 6 28 31 26 25 Detail 2 1 38 7 17 7143A 1b 38 see detail 1b 1 Torque to 63 to 73 N-m (46 to 54 ft-lb). 2 Apply thread sealant and thread tape to pipe threads before reassembling. 1a 1b 8 7137C Ref No. Part No. 1 234118 1a 1b 2 6 7 8 117638 104031 181408 181410 Description REPAIR KIT, surge tank; includes items 1a, 1b, 2, and 38 . DIAPHRAGM . O–RING .
Parts 17 Models 238983, 238986 Series C electropolished stainless steel, 2 npt(f) inlet/outlet 238984, 238987 Series C electropolished stainless steel, 2-in. sanitary inlet/outlet 12 electropolished stainless steel, 1.5-in. sanitary inlet/outlet Part No.
Parts Model 233736, Series A stainless steel, 1/4 bspp(f) air port, 3/4 bspp(f) fluid port Ref No. Part No. 1 2 5 6 7 8 9 10 11 12 19 20 198776 198775 198779 198778 198777 117033 116898 116899 116901 116902 116343 15F749 Description Qty.
Dimensional Drawings 334 mm (13.1 in.) 268 mm (10.6.in.) 1.25 – 11.5 npt(f) fluid inlet 2 – 11.5 npt(f) fluid port, inlet / outlet 2 – 11.5 npt(f) fluid port, inlet / outlet 1.25 – 11.5 npt(f) fluid outlet 284 mm (11.2.in.) 648 mm (25.5 in.) 383 mm (15.1.in.) 383 mm (15.1 in.) 7144A Model 220157 Model 218509 highest point fluid inlet / outlet: Models 238984, 238987 2 npt(f) Models 238984, 238987 2-in. sanitary (Tri-Clamp compatible) Models 238985, 238988 1.5-in.
Dimensional Drawings 1/4 bspp(f) air port 300 mm (11.8 in.) Height: 102 mm (4.0 in.) 3/4 bspp(f) fluid port Model 233736 TI1898B Stand Mounting Hole Layout (Stand is not used with Model 233736) 350 mm (13.8 in.) 278 mm (10.9 in.) 3 holes 17.5 mm (0.69 in.) 397 mm (15.6 in.) 320 mm (12.6 in.) 160 mm (6.3 in.
Technical Data Category Data Maximum fluid working pressure Models 238983, 238984, 238985, 238986, 238987, 238988: 300 psi (2.1 MPa, 21 bar) Model 233736: 360 psi (2.5 MPa, 25 bar) Models 218509, 220157: 600 psi (4.2 MPa, 42 bar) Maximum gas charge pressure Models 238983, 238984, 238985, 238986, 238987, 238988: 300 (maximum air inlet pressure for Model 233736) psi (2.1 MPa, 21 bar) Model 233736 (air inlet pressure): 218 psi (1.5 MPa, 15 bar) Models 218509, 220157: 600 psi (4.
Graco Standard Warranty Graco warrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.
