SGL Series 2-4 Inch Sliding Vane Pumps
SGL Series 2-4 Inch Sliding Vane Pumps - SGLD2 / BL - Steel/HNBR/Carbon/HNBR (Std) / N - NPT is backordered and will ship as soon as it is back in stock.
Delivery and Shipping
Delivery and Shipping
We ship in stock items same day. If it needs to be ordered we will ship it out to you the day it arrives.
SGL Series 2-4 Inch Sliding Vane Pumps - SGLD2 / BL - Steel/HNBR/Carbon/HNBR (Std) / N - NPT is backordered and will ship as soon as it is back in stock.
Description
Description
Blackmer SGL Series 2 inch to 4 inch pumps are ductile iron sliding vane pumps built for the transfer and recirculation of refrigerants and other liquefied gases. They are part of Blackmer's Cavitation Line, and every model carries a cavitation suppression liner that cuts the noise, vibration and wear that entrained vapors normally cause. The sliding vane design primes readily, holds its rated flow as the vanes wear, and can be brought back to like new condition by replacing the vanes, liner and end discs.
Each pump ships with an adjustable internal relief valve, a double ended keyed shaft, a replaceable liner and external ball bearings. Three sizes are available: SGLD2, SGLD3 and SGLD4B.
Models and Capacities
| Model | Port Size | Nominal Flow | Differential Pressure | Shipping Weight |
|---|---|---|---|---|
| SGLD2 | 2 inch | 14 to 67 gpm (53 to 254 L/min) | 150 psi (10.3 bar) | 88 lb (40 kg) |
| SGLD3 | 3 inch | 30 to 133 gpm (114 to 503 L/min) | 150 psi (10.3 bar) | 165 lb (75 kg) |
| SGLD4B | 4 inch | 55 to 270 gpm (203 to 1,022 L/min) | 125 psi (8.62 bar) | 227 lb (103 kg) |
Maximum working pressure is 525 psi (36.2 bar) with a single mechanical seal and 350 psi (24.1 bar) with a double mechanical seal. Viscosity range is 0.2 to 4,250 cP. Temperature range is -30°F to 240°F (-34°C to 115°C). Operating speed is 350 to 640 rpm. Connection orientation is side inlet, top outlet.
What You Select on This Page
Choose your size, your mechanical seal and your flange connection above, and the price updates for that exact build. Everything else on this page ships in Blackmer's standard configuration, listed in the Configuration Options table below. If you need something outside those three choices, call (262) 646-4500 and we will build the order code for you.
Seal Options
The seal is the part of the pump that has to match your liquid, so it is worth checking against your product data sheet before ordering. All six seals below are Blackmer single mechanical seals.
| Code | Materials | Fits |
|---|---|---|
| BL | Steel / HNBR / Carbon / HNBR (SJCJ). Standard. | All three models |
| S0 | Steel / FKM / Carbon / FKM (SVCV) | All three models |
| BN | Steel / Neoprene / Carbon / Neoprene (SPCP) | All three models |
| BE | Silicon Carbide / PTFE / Carbon / PTFE (LACA) | SGLD2 and SGLD3 |
| BR | Silicon Carbide / HNBR / Carbon / HNBR (LJCJ) | All three models |
| BM | Steel / PTFE / Carbon / Kalrez (SACK) | All three models |
Elastomer temperature limits: HNBR -30°F to 240°F, FKM -15°F to 240°F, PTFE with stainless steel spring 0°F to 240°F, Neoprene -30°F to 240°F.
Double Mechanical Seals, Plan 52 and Plan 53
SGLD3 and SGLD4B can also be built with a Blackmer double mechanical seal in a Carbon / FKM / Steel / FKM arrangement, to API Plan 52 or Plan 53. A double seal is not available on SGLD2. A double seal build also needs a barrier fluid system, which is sized to the application and is quoted with the pump rather than selected here. A 3 gallon ASME VIII Division 1 seal pot assembly with level gauge and switch, drain and instrument valves, pressure gauge and switch and vent valve is the standard system, and a 5 gallon system is used for high temperature service. Call to Order (262) 646-4500 and we will quote the pump and the barrier fluid system together.
Flange and Connection Options
Flange sizes differ by pump size, so not every flange code is offered on every model. The table below shows what each code is on each pump.
| Code | SGLD2 | SGLD3 | SGLD4B |
|---|---|---|---|
| N, NPT flanges | 2 inch NPT (standard) | 3 inch NPT (standard) | 3 inch x 3 inch NPT |
| W, weld flanges | 2 inch weld | 3 inch weld | 4 inch x 3 inch weld |
| 3, alternate weld flanges | Not offered | Not offered | 4 inch x 4 inch weld |
| G, 300# ANSI flanges | 2 inch ANSI 300# | 3 inch ANSI 300# | 4 inch x 4 inch ANSI 300# |
Weld flanges are steel to ASTM A216 WCB. NPT flanges are ductile iron to ASTM A536.
Configuration Options
These are set to Blackmer's standard on every pump built from this page. To change any of them, call (262) 646-4500 with your application details and we will price the build.
| Item | Standard | Alternatives |
|---|---|---|
| Vanes | Duravane, code 4, on all three models | EC Laminate vanes, code 6, on SGLD3 and SGLD4B |
| Rotation | Double ended keyed shaft, code 40, on all three models | Single ended keyed shaft, right hand (CW) or left hand (CCW), on SGLD2 only, for use with an SK771.1Z gear reducer |
| Relief valve | Iron relief valve on SGLD2 and SGLD3, corrosion resistant relief valve on SGLD4B | Fixed by model. The internal relief valve is adjustable and ships on every pump. |
| Relief valve spring | 51 to 75 psi on SGLD2, 51 to 100 psi on SGLD3, 51 to 75 psi on SGLD4B | SGLD2: 76 to 110 psi or 111 to 150 psi. SGLD3: 101 to 150 psi. SGLD4B: 76 to 125 psi or 126 to 150 psi. Call to specify your required pressure range. |
| O-rings, pump body | HNBR, code 4, on all three models | Fluorocarbon (FKM), PTFE, or Neoprene |
| Standard construction fields | Code 0000, required for pump identification | None |
| Accessories | None, code 0 | Barrier fluid tank and stand for Plan 52 double seal builds on SGLD3 and SGLD4B. SK771.1Z gear reducer selections on SGLD2. |
Dimensions
Figures below are Blackmer's published pump only dimensions and pump weight, which is lower than the shipping weight quoted with each variant above.
| Model | Length | Width | Height | Pump Weight |
|---|---|---|---|---|
| SGLD2 | 16-15/16 in (430.2 mm) | 11 in (281 mm) | 10 in (254 mm) | 85 lb (38.6 kg) |
| SGLD3 | 20-3/8 in (517.5 mm) | 15-7/8 in (403.2 mm) | 13-3/8 in (339.7 mm) | 160 lb (72.6 kg) |
| SGLD4B | 20-7/8 in (530.2 mm) | 16-15/16 in (430.2 mm) | 15-4/9 in (392.2 mm) | 205 lb (93 kg) |
Maintenance Kits
A maintenance kit covers the routine wear items. A rebuild kit adds the parts needed to return the pumping chamber to like new condition.
| Model | Maintenance Kit | Rebuild Kit |
|---|---|---|
| SGLD2 | 898935 | 899035 |
| SGLD3 | 898936 | 899036 |
| SGLD4B | 898937 | 899037 |
Kits are seal specific on some builds. If you are not sure which kit matches the pump you own, call and we will confirm the pair against your serial number.
Replacement Parts
Individual wear parts are stocked for all three sizes if you would rather not buy a full kit.
| Part | SGLD2 | SGLD3 | SGLD4B |
|---|---|---|---|
| Vane, Duravane | 091419 | 095131 | 092019 |
| Rotor and shaft assembly | 264445 | 265148 | 262041 |
| Casing | 014405 | 015127 | 012019 |
| Head | 034416 | 035128 | 032041 |
| Liner | 184405 | 185111 | 182000 |
| Disc | 064412 | 065112 | 062039 |
| Ball bearing | 903156 | 903172 | 903172 |
| Push rod | 123905 | 125105 | 122009 |
| Relief valve | 454405 | 455109 | Call to Order (262) 646-4500 |
| Relief valve spring, standard range | 471425 | 471612 | 472009 |
| Head o-ring, HNBR | 702316 | 702318 | 702321 |
| Flange o-ring, HNBR | 702309 | 702312 | 702313 |
| Bearing cover gasket | 383940 | 385125 | 385125 |
| Shaft protector | 341601 | 341801 | 341801 |
| Locknut tool | 903091 | 903091 | 903092 |
For any part not listed here, including o-rings in FKM, PTFE or Neoprene, bearing locknuts and lock washers, cap screws, grease fittings and liner keys, Call to Order (262) 646-4500.
Drives and Integrated Unit Assemblies
The price above is for the pump only. Blackmer also builds fully integrated unit assemblies that arrive with the motor, gear reducer or V-belt drive, baseplate, couplings and guards already mounted and aligned, ready to drop in. SGLD2 takes an SK771.1Z or SK 571.1-W gear reducer, SGLD3 takes an SK 771.1-W, and SGLD4B takes an SK 52-W, with V-belt drive packages available across all three sizes. Ratios and motor frames are matched to your required flow and speed. Call to Order (262) 646-4500 and we will size the drive with you.
Literature
- Brochure, SGL Series Specialty Liquefied Gas Transfer Pump, 801-010
- Installation and Operation Manual, SGLD2, SGLD3, SGLD4B, SGLWD3, SGLWD4, 801-B00
- Mechanical Seal Installation, Dual Seal, Plan 52 and Plan 53, Form 605
- Parts List, SGLD2, SGLD3, SGLWD3, 801-B01
- Parts List, SGLD4B, SGLWD4, 801-B02
- Materials of Construction, 801-093
- Performance Curves, SGLD2, 801-023
- Performance Curves, SGLD3 and SGLWD3, 801-024
- Performance Curves, SGLD4B and SGLWD4, 801-025
- Dimensional Drawing, SGLD2, 801-102
- Dimensional Drawing, SGLD3 and SGLWD3, 801-103
- Dimensional Drawing, SGLD4B and SGLWD4, 801-107
- V-Belt Drive, Installation, Operation and Parts List, LGLD2E, CRL2, SGLD2, 801-C00
- V-Belt Drive, Installation, Operation and Parts List, SGLD3 and SGLWD3, 801-D00
- V-Belt Drive, Installation, Operation and Parts List, SGLD4B and SGLWD4, 801-E00
- Parts List, Integrated Unit Assembly SGL2, 801-H11
- Parts List, Integrated Unit Assembly SGL3, 801-H12
- Parts List, Integrated Unit Assembly SGL4, 801-H13
- Brochure, Integrated Unit Assemblies, 011-050
- Spec Sheet, Nord Gearbox Ratings for Integrated Unit Assemblies, 109-002
- Parts List, Alignment Free Accessories, 2 inch and 2.5 inch, 011-045
- ATEX Declaration of Conformity for Blackmer Vane Pumps, Form 617
Applications
Butadiene, butene, dimethyl ether, ethyl chloride, sulfur dioxide, refrigerants including MF, TA, TMS and TF, and most 400 and 500 series refrigerant blends.
We are an authorized Blackmer distributor and we stock and support the full SGL line. If you need help matching a pump, a seal or a flange to your application, or you would like a quote on a complete unit assembly, call us at (262) 646-4500.
Other Pumps in This Family
The Blackmer SGL family also includes the SGL Series High-Speed Sliding Vane Pumps, 1.25 and 1.5 inch pumps that run at motor speed. Call (262) 646-4500 for help selecting the right pump for your application.

