Q155 Medium Pressure Series
| Model | Flow Capacities @ Pressure psi (bar) | rpm | gpm | l/min | BDP |
|---|
| Q155K | 3000 (207) | 450 | 75 | 284 | 2571 |
| Q155M | 3500 (241) | 450 | 63 | 238 | 2160 |
| Model | Delivery @ Pressure psi (bar) | gal/rev | liters/rev |
|---|
| Q155K | 500 (34) | 0.185 | 0.700 |
| 1500 (103) | 0.181 | 0.685 |
| 3000 (207) | 0.173 | 0.654 |
| Q155M | 500 (34) | 0.152 | 0.575 |
| 1750 (121) | 0.147 | 0.556 |
| 3500 (241) | 0.140 | 0.530 |
| rpm | |
|---|
| Maximum: | 450 |
| Maximum API 674: | 375 |
| Minimum: | 45 (Consult factory for speeds less than 40 rpm.) |
| | |
|---|
| Maximum Discharge Pressure | | |
| Metallic Heads: | Q155K | 3000 psi (207 bar) |
| Q155M | 3500 psi (241 bar) |
| Maximum Inlet Pressure | | 500 psi (34 bar) |
| Operating Temperature | | |
| Maximum: | | 180 ̊F (82.2 ̊C) |
| Minimum: | | 40 ̊F (4.4 ̊C) |
| | Consult factory for temperatures outside this range |
| Maximum Solids Size | | 800 microns |
| Input Shaft | | Left or Right Side |
| Inlet Port | | Weld-On: 4” / SCH. 40 |
| | 4" NPT, 4" Class 300 RF ANSI Flange |
| Discharge Port | | Weld-On: 2” / SCH. 160 |
| | 2" NPT, 2" Class 2500 RTJ ANSI Flange |
| Plunger Stroke Length | | 3-1/2 inch (88.9 mm) |
| Shaft Diameter | | 3 inch (76.2 mm) |
| Shaft Rotation | | Uni-directional (see rotation arrows) |
| Oil Capacity | | 32 US quarts (30.3 liters) - blank back cover |
| | 34 US quarts (32.2 liters) - oil level back cover |
| Weight | | |
| Metallic Heads: | | 1700 lbs. (771 kg) |
| Fluid End Materials | | |
| Manifold: | | Nickel Aluminum Bronze (NAB) |
| | Duplex Alloy 2205 Stainless Steel |
| | 316L Stainless Steel CF3M |
| | Hastelloy CX2M |
| Diaphragm/Elastomers: | | FKM |
| | Buna-N |
| | Aflas |
| | EPDM |
| Diaphragm Follower Screw: | | 316 Stainless Steel |
| Valve Spring Retainer: | | Polypropylene |
| | PVDF |
| | 316 SST |
| | Hastelloy C |
| Check Valve Spring: | | Elgiloy |
| | Hastelloy C |
| Valve Disc/Seat: | | Tungsten Carbide |
| | 17-4 Stainless Steel |
| | Nitronic 50 |
| | Hastelloy C |
| Diaphragm Follower Screw: | | 316 Stainless Steel |
| Outlet Valve Retainer: | | 316 Stainless Steel |
| Plug-Outlet Valve Port: | | 316 Stainless Steel |
| Inlet Valve Retainer: | | 316 Stainless Steel |
| Power End Materials | | |
| Crankshaft: | | Forged Q&T Alloy Steel |
| Connecting Rods: | | Ductile Iron |
| Crossheads: | | 12L14 Steel |
| Crankcase: | | Ductile Iron |
| Bearings: | | Spherical Roller/Bronze Journal (outer mains) |
| | Steel Backed Babbitt (crankpin) |
| | Bronze (wristpin, center mains) |
