Griswold's H Series

Griswold’s H Series consists of high-pressure pumps that are ideally suited where clean water needs to be delivered at high pressures. Unlike the standard end suction centrifugal pump, the Griswold H series maintains its prime even after check valves fail.

The suction line is located at the higher part of the pump housing, keeping the impeller and mechanical seal covered with water at all times.

Features & Benefits

Know more about the features & benefits of using Griswold's H Series.

Cast iron ASTM A48 class 30 case with built-in drain and priming plugs
Bolt-on suction flange in variety of sizes to suit flow requirements
Self-priming with the suction line on top of the pump
Built-in check valves to prevent siphoning and the need for repriming
Enclosed bronze impeller with a single piece design
Impeller is balanced and trimmed according to specific operating range
Seals available in Carbon Ni-Resist FKM, Carbon Silicon Carbide FKM, Silicon Carbide FKM, and Silicon Carbide Tungsten FKM
Dual discharge connections

Available Options

We customise pumps according to your specific application. Get in touch with us to know your options.

Multiple seal options are available
Size and configuration options
Baseplate/mounting
Accessories and spare parts

Key Specifications

Here are the key specifications of Griswold's H Series.

Max Flow: 73.8 m³/hr
Max Head: 79 m
Max Temperature: 37.8°C
Max Pressure: 7.6 bar
Available Materials: Iron

Applications

Here is a list of industrial applications for which Griswold's H Series are commonly utilized.

Draining Barges
Tank Cars
Underground Storage Tanks
Sprinkler Systems
Swimming Pools
Marine
Irrigation
Water Sumps

Griswold’s H Series consists of high-pressure pumps that are ideally suited where clean water needs to be delivered at high pressures.

Principle of Operation

Centrifugal pumps are used to induce flow or raise a liquid from a low level to a high level. These pumps work on a very simple mechanism. A centrifugal pump converts rotational energy, often from a motor, into energy in a moving fluid.

The two main parts that are responsible for the conversion of energy are the impeller and the casing. The impeller is the rotating part of the pump, and the casing is the airtight passage that surrounds the impeller. In a centrifugal pump, fluid enters the casing, falls on the impeller blades at the eye of the impeller, and is whirled tangentially and radially outward until it leaves the impeller into the diffuser part of the casing. While passing through the impeller, the fluid is gaining both velocity and pressure.