Supplier of Flow Products to the US Government

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Flowmeters for the US Government- Hoffer Flow Controls Supplier of Flow Products

Hoffer Flow Controls supplies flow products to various agencies within the U.S. government, including the Navy, Army, Air Force, NASA, and numerous other agencies within the government.

We have designed and supplied flow meters and flow systems for all types of liquid, gas, and cryogenic flow meters, flow applications within the government. Many of the flow systems designed for these applications incorporate special features invoked due to the nature of the application.

Some of these features include designing the flow system to meet the following requirements.
• EMC Standard EN55011:1991- (Radio Disturbance Characteristics) and EN61326-1:1997 (Electrical Equipment for Measurement, Control, and Laboratory Use).
• MIL-STD-462D -EMI (Measurement of Electromagnetic Interference Characteristics).
• MIL-S-901D – Shock Test, H.I. (High Impact) Shipboard Machinery, Equipment, and Systems.
• MIL-STD-167-1 – Mechanical Vibration of Shipboard Equipment.

Surface Shipboard Applications

Hoffer Flow Controls has turbine flowmeters on almost every “class” of a ship in the US Navy. Our meters are currently in use to monitor the fuel supply to the diesel engines. Our meters are currently specified for use to monitor the fuel supply to the engines on the TAOE, LSD, SSBN, CG 47, DDG 51, FFG, LHA, CVN, T-ARS, and LPD Class ships within the US Navy fleet.

Flowmeters for US Government are in use on the flight deck on CVN 78. For that application, we have supplied bi-directional flowmeters for fueling the aircraft in the forward flow direction and off-loading the fuel from the aircraft in the reverse flow direction.

In addition to the fuel applications on these ships, Hoffer turbine meters are used on the RO water treatment plants on many of the classes of ships noted above. The RO system supplier typically specifies these. Another shipboard application in more recent years is monitoring water or water/glycol used for cooling purposes for radar systems.

We have supplied 4″ size meters for the AMDR (Air Missile Defense Radar) systems for cooling purposes on the Zumwalt. Our meters will soon be used for monitoring the cooling water on the Aegis combat systems on the DDG class of ships.

Shipboard applications are great for our product line because our flowmeters and some electronics have been successfully designed and tested to meet MIL-S-901D Shock tests – high impact and MIL-STD-167-1 – mechanical vibration.

Our CAT3 intelligent signal conditioner has also successfully been tested to meet EMC (Emissions) Standards EN55011:1992 and EN61326-1:1997.

In addition, a number of our flow systems have been tested to meet an accelerated life endurance test. We have supplied multiple flow systems for nuclear submarines that have level 1 sub-safe approval.

Subsurface Flow Applications

Flowmeters for US Government from Hoffer Flow Controls includes several hundred flow systems for use on many classes of submarines within the US Navy fleet. Our flow systems are currently in use on the USS Ohio Class, the USS Virginia Class, the USS Seawolf Class, and the USS Los Angeles Class submarines.

Additionally, our flowmeters were used on the NR-1 submarine (Deep submergence research and engineering vehicle) through 2008, when this class of vessel was decommissioned.

Here is a brief description of some of the flow systems we have supplied for use on submarines.

Trim & Drain System

A modern submarine is designed for diving or surfacing rapidly under complete control. It must proceed on the surface and submerge at the desired rate of speed to the depths required. To do so quickly and efficiently, the submarine must maintain fore and aft balance and athwartship stability.

The chief function of the trim and drain system is to maintain this fore and aft balance by controlling the amount and distribution of water in the various tanks used for this purpose. Hoffer Flow Controls has supplied Trim & Drain flow systems used on the Ohio Class submarines.

The flow media is saltwater. The Hoffer equipment is in a pressure-containing system within the submarines. Failure of this system would endanger the lives of those aboard the submarine. As such, we have been approved for Level 1 sub-safe systems as required for pressure-containing systems on nuclear submarines. This system has been tested to meet MIL-STD-901C for shock.

Submarine Missile Cooling System

This system consists of four 1 ½” and one 1” turbine flowmeters. Five flowmeters are used on each submarine in the missile cooling system on the USS Ohio Class submarine. Flowmeters are of stainless steel construction. Each flowmeter is supplied with a signal conditioner.

These flowmeters are an integral component in a system on this nuclear class submarine. The flow media is demineralized water for missile cooling. The meters are in continuous service and have been approved to meet high shock MIL-STD-901C, vibration MIL-STD-167B, and electro-magnetic interference MIL-STD-461 and 462.

Additionally, this equipment meets MIL-STD-1399 which is a magnetic field effects test. The flowmeters were tested to meet an accelerated life endurance test.


Flowmeters for US Government from Hoffer Flow Controls

Hoffer Flow Controls has been designing and manufacturing quality liquid turbine flowmeters and related process instrumentation for more than fifty years. Our initial experience was in the field of cryogenic flow measurement. Today our reputation in this field is synonymous with quality. Today Hoffer Flow Controls manufactures high-precision turbine flowmeters to measure clean liquids and gases throughout the processing industries. Please be sure to follow Hoffer Flow Controls on Linked In

Also, see
Hoffer Flow Certifications & Compliance Statements
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Flowmeters for US Government
Flowmeters for US Government

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