Installed and in use Pump Power Ends

Liquid Nitrogen Pump Power Ends

Our line of Hydra Rig nitrogen pump power ends satisfies market requirements for high-pressure pumping rates up to 1,828,00 SCFH.

  • Description Description
  • Ruler Specifications
Description

Our Hydra Rig™ high-pressure pumps are specifically designed to deliver high flow rates at high-pressure while providing exceptional low flow rate turndown. These pumps utilize low-friction roller bearings and a pressure feed lube system for positive lubrication, insuring increased pump life over conventional pumps.

NP-200 Liquid Nitrogen Triplex Pump

The NP-200 high-pressure pumps are specifically designed to deliver high flow rates at high pressure while providing exceptional low flow rate turndown.

The NP-200 triplex nitrogen pump is designed for durability. Low-friction roller and ball bearings are used rather than common journal bearings. This significantly enhances durability, particularly at low speeds at which journal bearings are most vulnerable.

The design also operates at a wider temperature range and produces less heat in the bearings. This means less lube oil system requirements for preheating and cooling the lube oil.

The welded steel case design enables strength where it is needed while reducing excess weight. Steel construction gives ductility and enables repairs if damaged. This design is compact in size for minimal footprint when installed. Typical hydraulic drive packaging enhances flexible installation of the nitrogen pump without drive shafts to align.

Many cold-end brands may be mounted to the NP-200 pump for flexibility in use.

NP-400 Liquid Nitrogen Triplex Pump

Our NP-400 pump satisfies the market requirement for high-pressure pumping rates up to 467,000 SCFH.

The NP-400 pump is a medium-rate version of the NP-1000 pump that has proven its durability for years. This new design approach uses low-friction roller bearings rather than journal bearings to significantly enhance durability—particularly at low speeds at which other pumps using journal bearings are most vulnerable. The NP-400 design also operates at a much cooler temperature.

This pump has a simplified design and is internally balanced on each cylinder for smooth pumping operation. The maximum rod load is 42,000 lb, enabling 15,000 psi working pressure at rates up to 324,000 SCFH.

NP-1000 Liquid Nitrogen Triplex Pump

The NP-1000 triplex high-pressure pump was specifically designed to deliver high flow rates at high pressure while providing exceptional low flow rate turndown.

This pump is the result of necessary product advancements. This new design approach uses low-friction roller bearings rather than journal bearings to significantly enhance durability—particularly at low speeds at which other pumps using journal bearings are most vulnerable. This design also operates at a much cooler temperature. This means less lube oil system requirements, which saves weight without sacrificing unit durability.

This pump is internally balanced so that an externally mounted counterbalance does not compromise the reliability of the unit. This enhancement also provides a much smoother pump by balancing each cylinder rather than compensating from the end of the shaft. Maximum rod load is increased to 73,500 lb (versus 58,000 lb for competitive offerings). This enables nearly 27% increased working pressure without changing to smaller cold ends.

The pump will accept existing cold ends and increase their capabilities.

NP-1600 Liquid Nitrogen Quintuplex Pump

The NP-1600 high-pressure pump is specifically designed to deliver high flow rates at high pressure while providing exceptional low flow rate turndown.

This new design approach uses low-friction roller bearings rather than journal bearings to significantly enhance durability—particularly at low speeds at which other pumps using journal bearings are most vulnerable. This design also operates at a much cooler temperature. This means less lube oil system requirements, which saves weight without sacrificing unit durability.

This pump is internally balanced so that an externally mounted counterbalance does not compromise the reliability of the unit. This enhancement also provides a much smoother pump by balancing each cylinder rather than compensating from the end of the shaft. Maximum rod load is increased to 73,500 lb (versus 58,000 lb for competitive offerings). This enables nearly 27% increased working pressure without changing to smaller cold ends.

The pump will accept existing cold ends and increase their capabilities.

Specifications

Liquid Nitrogen Pump Power Ends Specifications

Model NP-200 NP-400 NP-1000 NP-1600
Number of pistons 3 3 3 5
Stroke length 1.375 in. (3.49 cm) 2.00 in. (5.80 cm) 2.25 in. (5.72 cm) 2.25 in. (5.72 cm)
Weight (without cold ends and lube oil) 1,750 lb (794 kg) 1,975 lb (898 kg) 2,550 lb (1,157 kg) 5,000 lb (2,268 kg)
Length 25.625 in. (65.09 cm) 35.0 in. (88.9 cm) 37.25 in. (94.62 cm) 70 in. (177.80 cm)
Width 39.625 in. (100.65 cm) 39.0 in. (99.1 cm) 40.5 in. (102.87 cm) 40.5 in. (102.87 cm)
Height 23.5 in. (59.69 cm) 21.0 in. (53.3 cm) 21.94 in. (55.73 cm) 39 in. (99.06 cm)
Gearbox Available Available Available Standard
Maximum speed 975 RPM 900 RPM 900 RPM 900 RPM
Rod load 21,500 lb  42,000 lb  73,500 lb  73,500 lb

NP-200 Liquid Nitrogen Triplex Pump Operation Characteristics at 90% volumetric

Cold-end diameter 1.25 in. (3.175 cm) 1.625 in (4.275 cm) 2 in. (5.08 cm)
Maximum flow 19 gal/min (73 L/min) 32 gal/min (123 L/min) 49 gal/min (186 L/min)
Maximum flow 107,500 SCFH (6040 m3/hr) 181,600 SCFH (5140 m3/hr) 275,000 SCFH (7780 m3/hr)
Maximum pressure 15,000 psi (103 MPa) 10,000 psi (69 MPa) 6,000 psi (41 MPa)

NP-400 Liquid Nitrogen Triplex Pump Operation Characteristics at 90% volumetric

Cold-end diameter 1.875 in. (4.7625 cm) 2 in. (5.08 cm) 2.25 in. (5.715 cm)
Maximum flow 64 gal/min (244 L/min) 73 gal/min (278 L/min) 93 gal/min (352 L/min)
Maximum flow 324,000 SCFH (9200 m3/hr) 369,000 SCFH (10 400 m3/hr) 467,000 SCFH (13 200 m3/hr)
Maximum pressure 15,000 psi (103 MPa) 13,000 psi (89.6 MPa) 10,000 psi (68.9 MPa)

NP-1000 Liquid Nitrogen Triplex Pump Operation Characteristics at 90% volumetric

Cold-end diameter 2 in. (5.8 cm) 2.5 in. (6.35 cm) 2.875 in. (7.303 cm) 3 in. (7.62 cm) 3.25 in. (8.255 cm)
Maximum flow 74 gal/min (281 L/min) 116 gal/min (440 L/min) 153 gal/min (581 L/min) 167 gal/min (633 L/min) 196 gal/min (743 L/min)
Maximum flow 415,000 SCFH (11 700 m3/hr) 649,000 SCFH (18 400 m3/hr) 858,000 SCFH (24 300 m3/hr) 935,000 SCFH (26 500 m3/hr) 1,097,000 SCFH (31 000 m3/hr)
Maximum pressure 15,000 psi (103 MPa) 15,000 psi (103 MPa) 11,200 psi (77 MPa) 10,000 psi (69 MPa) 8,000 psi (61 MPa)

NP-1600 Liquid Nitrogen Quintuplex Pump Operation Characteristics at 90% volumetric

Cold-end diameter 2 in. (5.08 cm) 2.5 in. (6.35 cm) 2.875 in. (7.303 cm) 3 in. (7.62 cm) 3.25 in. (8.255 cm)
Maximum flow 124 gal/min (469 L/min) 193 gal/min (733 L/min) 255 gal/min (969 L/min) 279 gal/min (1055 L/min) 327 gal/min (1238 L/min)
Maximum flow 692,000 SCFH (19 600 m3/hr) 1,082,000 SCFH (30 600 m3/hr) 1,431,000 SCFH (40 500 m3/hr) 1,558,000 SCFH (44 100 m3/hr) 1,828,000 SCFH (51 700 m3/hr)
Maximum pressure 15,000 psi (103 MPa) 15,000 psi (103 MPa) 11,200 psi (77 MPa) 10,000 psi (69 MPa) 8,800 psi (61 MPa)

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