Blackmer Universal Bracketed Internal Gear Pump - Jacketed and Non-Jacketed
When you're seeking enhanced performance from your existing gear pump, the Blackmer G Series Internal Gear Pumps are your go-to solution. These G Series positive displacement gear pumps stand out as high-quality, dependable alternatives to their competitors, offering the durability, versatility, and efficiency required to handle your demanding fluid-handling tasks with safety and confidence. Whether it's time for an upgrade or you need a jacketed pump to maintain process temperature and integrity during operations, replace your current gear pump concerns with a robust, flexible, and efficient solution. This choice guarantees peace-of-mind performance, backed by exceptional customer service and factory support from an experienced team.
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Jacketed Option (Cast Iron Only)
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G2-55, G2-69, G2-82, G2-133, G2-222 |
Blackmer G Series Internal Gear Pump Features
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| Competitor Pump Interchangeability | Direct Replacement Part Interchangeability | Seal Chamber with Universal Design and Heavy-Duty Oversized Bearing Housing | Jacketed Pump Options for Process Integrity |
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Interchangeable with up to 95% of the mechanically sealed, packed and seal-less internal gear pumps in use today, with no need for piping, driver, baseplate or coupling modifications. G Series Internal Gear Pumps are designed to be part-for-part replacements for many competitor pump models and are available in cast iron, carbon steel and stainless steel. |
G Series parts are designed to be direct replacements for Viking® H, HL, K, KK, L, LQ, LL, LS, Q and QS models. Available in cast iron, carbon steel and stainless steel construction. |
An oversized bracket and seal chamber allows the use of numerous sealing technologies, including packing, mechanical seals and lip seals. The large cast-iron bearing housing allows the mechanical seals to be removed without the need to take the gear pump out of service. |
Available on G Series G2-55 - 222 cast iron models, jacketed pump components efficiently heat the seal area and pump internals to maintain process temperature and integrity during operation. Jackets allows for greater temperature control and stability, preventing the product from hardening and damaging the seal upon startup and provides faster startup than a cold pump would allow. |
Blackmer G Series Internal Gear Pump Specifications and Performance
| STANDARD NON-JACKETED (G1) | JACKETED³ (G2) | STANDARD NON-JACKETED (G1) | STANDARD NON-JACKETED (G1) | |||||
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| MODEL | CAST IRON PORT SIZES² | CAST IRON PORT SIZES² | CARBON STEEL PORT SIZES¹ | STAINLESS STEEL PORT SIZES¹ | ||||
| THREADED | FLANGED | THREADED | FLANGED | THREADED | FLANGED | THREADED | FLANGED | |
| G1-2 G1-4 |
1-1/2" NPT | N/A | N/A | N/A | N/A | 1-1/2" ANSI | N/A | 1-1/2" ANSI |
| G1-24 G1-32 |
2" NPT | N/A | N/A | N/A | N/A | 2" ANSI | N/A | 2" ANSI |
| G1-55 / G2-55 | 2" NPT | 2-1/2" ANSI | 2" NPT | 2-1/2" ANSI | N/A | 2-1/2" ANSI | N/A | 2-1/2" ANSI |
| G1-69 / G2-69 G1-82 / G2-82 |
N/A | 3" ANSI | N/A | 3" ANSI | N/A | 3" ANSI | N/A | 3" ANSI |
| G1-133 / G2-133 | N/A | 4" ANSI | N/A | 4" ANSI | N/A | 4" ANSI | N/A | 4" ANSI |
| G1-222 / G2-222 | N/A | 6" ANSI 180° | N/A | 6" ANSI 180° | N/A | 6" ANSI 180° | N/A | 6" ANSI 180° |
(1) Flanged connections meet Class 150# ANSI
(2) Flanged connections meet Class 125# ANSI
(3) Jacketed bracket, head, and valve available in 55-133 sizes; 90 deg ANSI case optional for 55 and 133 sizes only
Note: All port orientations 90° unless specifically noted 180°
Note: All G Series ANSI flanges are flat-face (FF)
| STANDARD NON-JACKETED (G1) | JACKETED¹ (G2) | STANDARD NON-JACKETED (G1) | STANDARD NON-JACKETED (G1) | |||||
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| MODEL | CAST IRON | CAST IRON | CARBON STEEL | STAINLESS STEEL | ||||
| RPM | GPM (M³/H) | RPM | GPM (M³/H) | RPM | GPM (M³/H) | RPM | GPM (M³/H) | |
| G1-2 | 1,750 | 15 (3.4) | N/A | N/A | 1,750 | 15 (3.4) | 1,150 | 10 (2.3) |
| G1-4 | 1,750 | 30 (6.8) | N/A | N/A | 1,750 | 30 (6.8) | 1,150 | 20 (4.5) |
| G1-24 | 780 | 75 (17.0) | N/A | N/A | 780 | 75 (17.0) | 520 | 50 (11.4) |
| G1-32 | 780 | 100 (22.7) | N/A | N/A | 780 | 100 (22.7) | 520 | 65 (14.8) |
| G1-55 / G2-55 | 640 | 135 (30.7) | 640 | 135 (30.7) | 640 | 135 (30.7) | 420 | 90 (20.4) |
| G1-69 / G2-69 | 520 | 140 (31.8) | 520 | 140 (31.8) | 520 | 140 (31.8) | 420 | 110 (25.0) |
| G1-82 / G2-82 | 640 | 200 (45.4) | 640 | 200 (45.4) | 640 | 200 (45.4) | 520 | 160 (36.3) |
| G1-133 / G2-133 | 520 | 300 (68.1) | 520 | 300 (68.1) | 520 | 300 (68.1) | 350 | 200 (45.4) |
| G1-222 / G2-222 | 520 | 500 (113.6) | 520 | 500 (113.6) | 520 | 500 (113.6) | 350 | 320 (72.7) |
(1) Jacketed bracket, head, and valve available in 55-133 sizes; 90 deg ANSI case optional for 55 and 133 sizes only
