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  5. Blackmer G Series Internal Gear Pumps

Blackmer G Series Internal Gear Pumps

The Blackmer® G Series Internal Gear Pumps are a premium solution for fluid-handling challenges, designed to offer superior performance, reliability, and interchangeability.

CATEGORY: No Categories
BRAND: Blackmer
TYPE: Equipment

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The Blackmer® G Series Internal Gear Pumps are a premium solution for fluid-handling challenges, designed to offer superior performance, reliability, and interchangeability.

Benefits

  • Reliability: Rugged construction ensures consistent performance even in demanding conditions.
  • Efficiency: Enhances process safety by maintaining fluid temperature and integrity.
  • Versatility: Available in various materials to suit a wide range of industrial applications.
  • Ease of Upgrade: Designed for direct replacement of competitor pumps, ensuring a smooth upgrade process.

  • Seamless Interchangeability:

    • 95% Interchangeable with existing mechanically sealed, packed, and seal-less internal gear pumps.
    • Requires no modifications to piping, driver, baseplate, or coupling.
    • Direct replacement for Viking® pump models: H, HL, K, KK, L, LQ, LL, LS, Q, and QS.

  • Material Options:

    • Available in Cast Iron, Carbon Steel, and Stainless Steel, catering to various fluid-handling needs.

  • Seal Chamber Design:

    • Features a universal design with an oversized bracket and seal chamber.
    • Supports multiple sealing technologies: packing, mechanical seals, and lip seals.
    • Allows for seal removal without taking the pump out of service.

  • Jacketed Pump Options:

    • Exclusively available in G2-55 to G2-222 Cast Iron models.
    • Jacketed components provide efficient heating of the seal area and pump internals to:
      • Maintain process temperature.
      • Prevent product hardening.
      • Reduce startup time.

  • Maximum Temperature:

    • Up to 650°F (343°C).

  • Pressure Ratings:

    • Cast Iron & Carbon Steel: Up to 200 psi (13.8 bar).
    • Stainless Steel: Up to 150 psi (10.3 bar).

  • Capacity:

    • Ranges from 15 gpm to 500 gpm (3.4 m³/h to 113.6 m³/h).

  • Jacketed Models:

    • Jacketed options available for models G2-55, G2-69, G2-82, G2-133, and G2-222 (Cast Iron only).

Port Size

 

 

MODEL

Standard Non-Jacketed (G1) CAST IRON PORT SIZES²

Jacketed (G2) CAST IRON PORT SIZES²

Standard Non-Jacketed (G1) CARBON STEEL PORT SIZES¹

Standard Non-Jacketed (G1) 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°

 

Pump Selection Performance Criteria

 

 

 

Nominal Pump Rating

Max. Discharge Pressure

 

Max.

Temperature

 

Nominal Pump Rating

Max. Discharge Pressure

 

Max.

Temperature

 

Nominal Pump Rating

Max. Discharge Pressure

 

Max.

Temperature

Cast Iron

Carbon Steel

Stainless Steel

Model

RPM

GPM

(m3/h)

PSIG (bar)

Fahrenheit (Celsius)

RPM

GPM

(m3/h)

PSIG (bar)

Fahrenheit (Celsius)

RPM

GPM (m3/h)

PSIG (bar)

Fahrenheit (Celsius)

G1-2

1,750

15 (3.4)

200 (13.8) >20 cSt

650° (343°)

1,750

15 (3.4)

200 (13.8) >20 cSt

650° (343°)

1,150

10 (2.3)

150 (10.3) >550 cSt

500° (260°)

G1-4

1,750

30 (6.8)

200 (13.8) >20 cSt

650° (343°)

1,750

30 (6.8)

200 (13.8) >20 cSt

650° (343°)

1,150

20 (4.5)

150 (10.3) >550 cSt

500° (260°)

G1-24

780

75 (17.0)

200 (13.8) >20 cSt

650° (343°)

780

75 (17.0)

200 (13.8) >20 cSt

650° (343°)

520

50 (11.4)

150 (10.3) >550 cSt

500° (260°)

G1-32

780

100 (22.7)

200 (13.8) >20 cSt

650° (343°)

780

100 (22.7)

200 (13.8) >20 cSt

650° (343°)

520

65 (14.8)

150 (10.3) >550 cSt

500° (260°)

G1-55 / G2-55

640

135 (30.7)

200 (13.8) >20 cSt

650° (343°)

640

135 (30.7)

200 (13.8) >20 cSt

650° (343°)

420

90 (20.4)

150 (10.3) >550 cSt

500° (260°)

G1-69 / G2-69

520

140 (31.8)

200 (13.8) >20 cSt

650° (343°)

520

140 (31.8)

200 (13.8) >20 cSt

650° (343°)

420

110 (25.0)

150 (10.3) >550 cSt

500° (260°)

G1-82 / G2-82

640

200 (45.4)

200 (13.8) >165 cSt

500° (260°)

640

200 (45.4)

200 (13.8) >165 cSt

500° (260°)

520

160 (36.3)

125 (8.6) >550 cSt

500° (260°)

G1-133 / G2-133

520

300 (68.1)

200 (13.8) >165 cSt

500° (260°)

520

300 (68.1)

200 (13.8) >165 cSt

500° (260°)

350

200 (45.4)

125 (8.6) >25 cSt

500° (260°)

G1-222 / G2-222

520

500 (113.6)

200 (13.8) >165 cSt

500° (260°)

520

500 (113.6)

200 (13.8) >165 cSt

500° (260°)

350

320 (72.7)

125 (8.6) >25 cSt

500° (260°)

 

Materials of Construction

 

Description

Part

Cast Iron

Carbon Steel

Stainless Steel

 

Pressure Containing

Case

Cast Iron, ASTM A48 Class 35B

Carbon Steel, ASTM A216 Grade WCB

Stainless Steel, ASTM A743 Grade CF8M

Head

Cast Iron, ASTM A48 Class 35B

Carbon Steel, ASTM A216 Grade WCB

Stainless Steel, ASTM A743 Grade CF8M

Bracket

Cast Iron, ASTM A48 Class 35B

Carbon Steel, ASTM A216 Grade WCB

Stainless Steel, ASTM A743 Grade CF8M

Pressure Relief Valve

Cast Iron, ASTM A48 Class 35B

Carbon Steel, ASTM A216 Grade WCB

Stainless Steel, ASTM A743 Grade CF8M

 

 

 

Product Contact

Idler Gear

Cast Iron, ASTM A48 Class 35B1

Stainless Steel, ASTM A564 Type 630 (17-4PH)5

Rotor

Standard

Cast Iron, ASTM A48 Class 35B 2,4

Stainless Steel, ASTM A564 Type 630 (17-4PH)5

Steel Fitted

Carbon Steel, ASTM A311 Grade 1045 Class A 3,4

N/A

Rotor Shaft

Steel, ASTM A311 Grade 1045

Stainless Steel, ASTM A276 Grade 316

Idler Pin

Alloy Steel, Hardened

Stainless Steel, Hardened

Idler Bushing

Carbon Graphite, Bronze, Tungsten Carbide, Hardened Cast Iron

Carbon Graphite, Bronze

Bracket Bushing

Carbon Graphite, Bronze, Tungsten Carbide, Hardened Cast Iron

Carbon Graphite, Bronze

Non-Product Contact

Bearing Housing

Cast Iron, ASTM A48 Class 35B

 

Competitor Model Cross Reference

 

BLACKMER G SERIES

BLACKMER E SERIES

VIKING®

TUTHILL®

GORMAN-RUPP®

G1-2

E1-2

H

15

GHS 1-1/2

G1-4

E1-4

HL

30

GHS 1-1/2

G1-24

E1-24

K

120

GHS 2

G1-32

E1-32

KK

130

GHS 2

G1-55 / G2-55

E1-55

L & LQ

200

GHS 2-1/2, 3

G1-69 / G2-69

E1-69

LL

210

GHS 3

G1-82 / G2-82

E1-82

LS

250

GHS 3

G1-133 / G2-133

E1-133

Q

N/A

GHS 4

G1-222 / G2-222

E1-222

QS

550

GHS 6

 

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