Instr. & Parts List 7052-1 Page 3
7052-01 ( ½ " ) Ratiotrol ™
Adjusting Nut 2-5652-1
Spring Cartridge Cap 2-5725-1
"O" Ring R520-4135V "O" Ring R520-4130V
Adjusting Screw 2-2331-1
air impulse Pressure Gauge
Compression Spring 2-2643-1 Extension Spring 2-2333-3
8735-HM (0-32 osi)
VENT LOCATIONS
Air Diaphragm Washer 2-1674-1
Oil Diaphragm Disc Washer ▲ (stan- dard) R790-0208 (7052-01-V) 2-2456-1
Air Diaphragm Cover 2-2234-3 Fabric Washer ▲ (standard) 2-1625-1 (7052- -V) 2-1625-2
5⁄16 -24 Hex Nut R510-2230-C
Oil Diaphragm Disc 2-2457-1
Air Diaphragm ▲ & Gasket Assembly (standard) 2-6250-1 (7052-01-V) 2-6250-2
Oil Diaphragm Gasket (standard) 2-6249-1 (7052-01-V) 2-5650-2
serial number on this surface
Air Diaphragm Disc 2-1078-1
½ -20 Hex Nut R510-2340 Shaft 2-2455-1 fl ow inlet oil Pressure Gauge 8735-B (0.60 psi) and 1836-04 Gauge Cock
outlet oil Pressure Gauge 8735-A (0-30 psi) and 1836-04 Gauge Cock Air Diaphragm Case 2-2236-4 Oil Diaphragm ▲ (standard) 2-2472-1 (7052-01-V) 2-2472-2 (2 req'd)
Body 2-1466-2
Valve Seat ▲ 2-1934-1
Valve Plug 2-1446-1
For diaphragm replacement kits, order the following: 7052-01: Order 7052-01-RK consisting of 2-6250-1 air diaphragm and gasket assembly, 2-6249-1 oil diaphragm and gasket assembly, 2-2472-1 a second oil diaphragm. 7052-01-V: Order 7052-01-VRK consisting of 2-6250-2 Viton air diaphragm and gasket assembly, (2) 2-2472-2 oil diaphragms, 2-5650-2 oil diaphragm gasket. Is an oil diaphragm and gasket assembled. When ordering a spring cartridge cap, also order an "O" ring.
7052-0 ( ¾ " ) Ratiotrol ™
Spring Cartridge Cap 2-1060-3 Spring Cartridge 2-3412-1
Oil Diaphragm Disc 2-1277-1 Air Diaphragm Washer 2-2327-1 Compression Spring 2-2325-1 Spring Cartridge Lock Nut 2-1313-1 Spring Suspension Disc 2-1237-1 Spring Eye 2-1236-2
Extension Spring 2-2326-1 air pressure Gauge 8735-HM (0-32 osi) Air Diaphragm Cover 2-1016-1
Air Diaphragm ▲ (standard) 2-1056-1 (7052-0-V) 2-1056-2 5⁄16 -24 Hex Nut R510-2230-C
Air Diaphragm Disc 2-2250-2
Spacer 2-2328-2 serial number on this surface
Air Diaphragm Case 2-1015-1
Oil Diaphragm ▲ (5 req'd) (standard) 2-1057-1 (7052-01-V) 2-1057-2
Diaphragm Shaft 2-1324-1 Valve Plug 2-1631-1
Union Ring 2-1481-1
fl ow
Union Tailpiece 2-1480-1
Body 2-1287-3
Valve Seat ▲ 2-1019-1
inlet oil Pressure Gauge 8735-K (0-100 psi) and 1836-03 Gauge Cock
outlet oil Pressure Gauge 8735-J (0-30 psi) and 1836-03 Gauge Cock
oil Thermometer 8737-C (50-300 F)
▲ Recommended spare part.
WARNING: Situations dangerous to personnel and property may exist with the operation and maintenance of any combustion equipment. The presence of fuels, oxidants, hot and cold combustion products, hot surfaces, electrical power in control and ignition circuits, etc., are inherent with any combustion application. Components in combustion systems may exceed 160°F (71°C) surface temperatures and present hot surface contact hazard. Fives North American Combustion, Inc. suggests the use of combustion systems that are in compliance with all Safety Codes, Standards, Regulations and Directives; and care in operation.
CONTACT fna.sales@fivesgroup.com T +1 800 626 3477 - F +1 216 373 4237
Fives North American Combustion, Inc. 4455 East 71st Street - Cleveland, OH 44105 - USA www.fivesgroup.com
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