Blackmer® SGL pumps, which are part of the Cavitation Line of sliding vane pumps, are designed for the liquid transfer or recirculation of refrigerants and other liquefied gasses. Constructed of shock-resistant ductile iron and available with a wide variety of seal materials, SGL pumps are ideally suited for almost any liquefied gas application.
The sliding vane, positive displacement design provides excellent priming capability and high performance over a wide range of temperatures and differential pressures. The vanes self-adjust as they wear, maintaining the efficiency of a new pump. The vanes, liner and end discs are all easily replaced, bringing the pump back to like new condition. In addition, SGL pumps feature a cavitation suppression liner designed for reducing the noise, vibration, and wear normally caused by entrained vapors.
SGL pumps are available in 2-, 3- and 4-inch sizes. Available options include a double mechanical seal.
Blackmer fully Integrated Unit Assemblies are the pre-engineered and pre-designed drop-in pumping solution. These unit assemblies, include motor, gearbox, baseplate, coupling safety covers, and a SGL Sliding Vane Pump (2, 3 & 4-inch size). No alignment required with these pre-configured fully Integrated Unit Assemblies as they are ready for immediate drop-in installation.
Features and Benefits
- Cavitation suppression liner design for reducing the noise, vibration, and wear normally caused by entrained vapors
- Replaceable casing, liners and end discs allow easy rebuilding of the pumping chamber to like-new condition
- Mechanical seal and elastomer options assure compatibility with refrigerants and other specialty gases
- Available in 2-, 3- and 4-inch sizes
- Ductile-iron construction with internal relief valve
- Blackmer mechanical seal and ball bearing construction provide maximum reliability
- Symmetrical bearing support assures even loading and wear for long life.
- Adjustable relief valve protects pump against excessive pressures
- Optional double mechanical seal
- Advantages of sliding vane technology:
- Unique sliding-vane pump design self-adjusts for wear to maintain flow rates
- Excellent self-priming and dry-run capabilities
- Sliding vane design provides sustained performance and trouble-free operation
- Easy maintenance: vanes can be easily replaced without removing the pump from the piping system
- High suction lift and line-stripping capabilities
- Low maintenance and low life-cycle costs
Applications
- Butadiene
- Butene
- Dimethyl ether
- Ethyl chloride
- Refrigerants - MF/TA/TMS/TF
- Most 400 & 500 series blends
- Sulfur dioxide
Performance and Specifications
AVAILABLE MODELS
- SGLD2
- SGLD3
- SGLWD3
- SGLD4
- SGLWD4
VISCOSITY
- 0.2 - 4,250 cP
CONNECTION ORIENTATION
- Side Inlet | Top Outlet
TEMPERATURE
- -30°F to 240°F (-34°C to 115°C)
NOMINAL FLOW RATE RANGE
- SGLD2: 14 - 67 gpm (53 - 254 L/min)
- SGL(W)D3: 30 - 133 gpm (114 - 503 L/min)
- SGL(W)D4: 55 - 270 gpm (203 - 1,022 L/min)
DIFFERENTIAL PRESSURE
- SGLD2, SGL(W)D3: 150 psi (10.3 bar)
- SGL(W)D4: 125 psi (8.62 bar)
MAXIMUM WORKING PRESSURE (MAWP)
- Single Seal: 525 psi (36.2 bar)
- Dual Seal: 350 psi (24.1 bar)
AVAILABLE CERTIFICATES
- Hydrostatic Test
- Performance Test
- NPSH Test
- Material (actual or typical)
- Dimensional (pump only or unit)
PRIMARY MATERIALS OF CONSTRUCTION
- Ductile Iron
VANE MATERIALS
- Duravane
- EC Laminate
MIN/MAX SPEED (rpm)
- 350 - 640
Dimensions
PUMP MODEL | L | W | H | Approx. Wt. | |
---|---|---|---|---|---|
SGLD2 | in | 16-15/16 | 11 | 10 | 85 lb |
mm | 430.2 | 281 | 254 | 38.6 kg | |
SGLD3, SGLWD3 | in | 20-3/8 | 15-7/8 | 13-3/8 | 160 lb |
mm | 517.5 | 403.2 | 339.7 | 72.6 kg | |
SGLD4, SGLWD4 | in | 20-7/8 | 16-15/16 | 15-4/9 | 205 lb |
mm | 530.2 | 430.2 | 392.2 | 93 kg |
Materials of Construction
Pressure Parts | Materials |
---|---|
Casing, Heads, Relief Valve Cover | Ductile Iron: ASTM 536 |
Pump Options
Options | Details |
---|---|
Orientation Options | Right Hand: INLET is to the right, when looking from driven side |
Left Hand: INLET is to the left, when looking from driven side | |
Porting Options | Top Outlet: Outlet 90° offset from inlet |
Mounting Options | Pump Only |
Unit: Pump, Motor, Baseplate, Couplings, Guards | |
Sealing Options | Blackmer mechanical seal - single or dual |
Connection Options
Pump Size | Standard | Optional |
---|---|---|
SGLD2 | Two 2" NPT Flanges Ductile Iron: ASTM A536 | Two 2" Weld Flanges Steel: ASTM A216 WCB |
SGL(W)D3 | Two 3" NPT Flanges Ductile Iron: ASTM A536 | Two 3" Weld Flanges Steel: ASTM A216 WCB |
SGL(W)D4 | 4" x 3" Weld Flanges Steel: ASTM A216 WCB | 4" x 4" Weld Flanges Steel: ASTM A216 WCB |
Vane Options
Material | Temperature Limits | Viscosity |
---|---|---|
Duravane | -25°F to 240°F (-32°C to 115°C) | 0.2 - 4,250 cP |
EC Laminate | -30°F to 240°F (-34°C to 115°C) | 0.2 - 4,250 cP |
Elastomer Options
Material | Temperature Limits |
---|---|
HNBR | -30°F to 240°F (-34°C to 115°C) |
FKM | -15°F to 240°F (-26°C to 115°C) |
PTFE - SS Spring | 0°F to 240°F (-18°C to 115°C) |
Neoprene | -30°F to 240°F (-34°C to 115°C) |
Maintenance Kits
Model(s) | Description | Part Number |
---|---|---|
SGLD2 | Kit - Maintenance | 898935 |
SGLD2 | Kit - Rebuild | 899035 |
SGLD3 | Kit - Maintenance | 898936 |
SGLD3 | Kit - Rebuild | 899036 |
SGLD4 | Kit - Maintenance | 898937 |
SGLD4 | Kit - Rebuild | 899037 |