background image

PD20E-X-X (en) 

Page 7 of 8

168 

107

107

TORQUE REQUIREMENTS

NOTE: DO NOT OVERTIGHTEN FASTENERS.

ALL FASTENERS ARE METRIC.

Torque (105) screw to 15 - 20 in. lbs (1.7 - 2.3 Nm).
Torque (134) screw to 40 - 50 in. lbs (4.5 - 5.6 Nm).

LUBRICATION / SEALANTS

Apply Lubriplate FML-2 grease to “O" rings, ”U" Cups & mating parts.

136

137 

139 

111

138 

 105

135

133

 134

101

103

174 

121

118

173 

169 

172 

171 

170

167

 173

121

 174

118

166 

132 

147 

146 

199 

141 

200 

232 

232 

233

176 

PILOT VALVE

PART GROUP

MAJOR

VALVE

A 637374-6 replacement Major Valve Service Assembly is available separately, which includes the following:

105 (4), 107 (2), 111, 132, 135, 136, 137, 138, 139, 140, 141, 146, 147, 166, 176 (2), 199, 200, 232 (2), 233 and 236 (4).

Optional 94117 Muffler

236

140

43

201

127

Figure 3

PARTS LIST / PD20E-X-X AIR SECTION

Summary of Contents for ARO PD20E Series

Page 1: ...aphragm ball seal material E P R EPDM 600 to 2800 F 510 to 1380 C Hytrel 200 to 1500 F 29 to 660 C Nitrile 100 to 1800 F 12 to 820 C Polypropylene 350 to 1750 F 20 to 790 C Santoprene 400 to 2250 F 40...

Page 2: ...service center that contains hazardous material Safe handling practices must comply with local and national laws and safety code requirements y y y y y y y y y y y y y y y y Obtain Material Safety Da...

Page 3: ...d grounded Flooded suction inlet pressure must not exceed 10 p s i g 0 69 bar y y y y y y y y y y y y OPERATING INSTRUCTIONS Always flush the pump with a solvent compatible with the material being pum...

Page 4: ...50 4 V MATERIAL CODE B Nitrile C Carbon Steel Co Copper E E P R GP Groundable Polypropylene H Hytrel P Polypropylene SP Santoprene SS Stainless Steel T PTFE V Viton COMMON PARTS Item Description size...

Page 5: ...ze compound to threads and bolt and nut flange heads which contact pump case when using stainless steel fasteners NOTE Lubriplate FML 2 is a white food grade petroleum grease COLOR CODE DIAPHRAGM BALL...

Page 6: ...Major Valve GENERAL REASSEMBLY NOTES Air Motor Section Service is continued from Fluid Section repair Inspect and replace old parts with new parts as necessary Look for deep scratches on surfaces and...

Page 7: ...mating parts 136 137 139 111 138 105 135 133 134 101 103 174 121 118 173 169 172 171 170 167 173 121 174 118 166 132 147 146 199 141 200 232 232 233 176 PILOT VALVE PART GROUP MAJOR VALVE A 637374 6...

Page 8: ...ld be sized at least as large as the inlet thread diameter of the pump for proper flow if high viscosity fluids are being pumped Suction hose must be a non collaps ing type capable of pulling a high v...

Reviews: