Description
DEF Sliding Vane Pumps
Blackmer® STX DEF Series Pumps, which are part of the Stainless Line of sliding vane pumps, meet or exceed all industry specifications for DEF Aqueous Urea Solutions (AUS32), also known as AdBlue®. Made from 316 stainless steel, the pumps are compatible with DEF and feature external ball bearings, non-metallic Duravanes, PTFE elastomers and Blackmer chemical mechanical seals. The design also includes an adjustable relief valve, weld flanges and self-priming capability. The STX3-DEF has a versatile mounting bracket.
STX3-DEF pumps offer fast fluid off-loading. For example, typical off-loading of a 6,000 gallon (22,700 liter) tanker can be unloaded as quickly as 24 minutes. The Blackmer non-metallic vanes self-compensate for wear and allow the STX DEF Series pumps to run dry for short periods of time for self-priming and blowing lines clean, without pump damage. The STX DEF Series is designed to offer easy maintenance because the internal wear is almost completely limited to the sliding vanes, which can be replaced with ordinary hand tools.
Performance and Specifications
AVAILABLE MODELS
- STX2-DEF
- STX1220-DEF
- STX3-DEF
- SX1-DEF
VISCOSITY
- STX2-DEF: 0.2 – 990 cP
- STX1220-DEF: 0.2 – 22 cP
- STX3-DEF: 0.2 – 4,250 cP
- SX1-DEF: 0.2 – 7 cP
MIN/MAX SPEED (rpm)
- STX2-DEF: 150 – 800
- STX1220-DEF: 700 – 1,200
- STX3-DEF: 300 – 800
- SX1-DEF: 1,450- 1,750
DIFFERENTIAL PRESSURE
- STX-DEF: 125 psi (8.6 bar)
- SX1-DEF: 25 psi (1.7 bar)
MAXIMUM WORKING PRESSURE (MAWP)
- STX-DEF: 175 psi (12.1 bar)
- SX1-DEF: 50 psi (3.4 bar)
CONNECTION ORIENTATION
- STX-DEF: Side Inlet | Top Outlet
- SX1-DEF: Side Inlet | Side Outlet
TEMPERATURE
- -25°F to 240°F (-32°C to 115°C)
VANE MATERIALS
- Duravane
PRIMARY MATERIALS OF CONSTRUCTION
- Stainless Steel
AVAILABLE CERTIFICATES
- Hydrostatic Test
- Performance Test
- NPSH Test
- Material (actual or typical)
- Dimensional (pump only or unit)
NOMINAL FLOW RATE RANGE
- STX2-DEF: 16 – 60 gpm (61 – 227 L/min)
- STX1220-DEF: 45 – 92 gpm (170 – 348 L/min)
- STX3-DEF: 80 – 250 gpm (303 – 946 L/min)
- SX1-DEF: 2 – 10 gpm (8 – 38 L/min)
STX & STX-DEF Nominal Flow Rate Range
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