Elkhart Brass IMS-1000 1000 gpm Master Stream Nozzle

A 1000 gpm nozzle with a wide 140 degree fog

The Elkhart Brass Select-O-Stream IMS-1000 is a fixed-gallonage master stream nozzle rated for 1000 gpm (3800 LPM) at 100 psi (7 bar). It sits in the Select-O-Stream family, which Elkhart describes as constant flow with a fully machined waterway, and it adds a wide 140 degree fog pattern for water curtains and vapor dispersion duty where a 90 degree fog is too narrow. The data sheet lists FM Approved 5511.

It has a 2.5 in NHT female swivel inlet for the standard Elkhart monitor outlet, a no-twist shutoff and a grease fitting for the tip threads. The pattern can be changed under flow from straight stream to fog, and the nozzle can flow water or premixed foam solution.

Technical specifications

The data sheet tabulates discharge from 40 to 125 psi; at 100 psi the nozzle delivers 1000 gpm.

Choosing among the IMS nozzles

The IMS series covers 350, 500, 750 and 1000 gpm. The IMS-350 and IMS-500 have the wide 140 degree fog, and the IMS-500, IMS-750 and IMS-1000 are FM Approved according to the catalog. Elkhart publishes a separate manual for the IMS-750 and IMS-1000. Select the flow from the hazard, remembering that the monitor must carry the reaction force and that all 1000 gpm must be available at about 100 psi at the nozzle. A 1000 gpm stream also carries a large reaction force, so the monitor, its base and the supply pipework should be checked together with the nozzle rather than the nozzle alone. The wide fog pattern is what separates the IMS series from the narrower 90 degree fog of the CJ-B nozzles, and it is the main reason to choose it where a broad water curtain is wanted.

The IMS-1000 pairs well with the Stingray 8393 monitor, which lists the IMS-1000 among its recommended nozzles.

Related Elkhart nozzles

Confirm before ordering

For corrosive or coastal sites, the marine brass option is worth raising at the enquiry stage, because the standard brass and the marine grade are different alloys listed separately on the data sheet. The nozzle weighs 13.0 lb, so it adds little load to the monitor outlet compared with the water reaction forces at 1000 gpm. The tip is operated by hand with the handles, and the grease fitting allows the tip threads to be lubricated without dismantling the nozzle, which keeps the pattern change smooth after long periods of standing.

Confirm the inlet thread, the brass grade (standard or marine) and the flow and pressure available at the monitor. The attached Elkhart data sheet includes the discharge and reach tables and dimensions. Send the details for a quotation and see our other Fire Fighting equipment.

How the Elkhart Brass IMS-1000 works

Water or foam solution enters the nozzle through the swivel inlet and passes through a machined waterway. The nozzle holds the flow near its rated value as the pattern is changed. Turning the pattern ring moves the tip from a straight stream to a narrow or wide fog. The wide fog spreads the water into a curtain.

Where the IMS-1000 is used

• Fixed fire monitors on industrial sites
• Water curtains around tanks and plant
• Vapor dispersion duty
• Fire engine and trailer monitors
• Foam solution discharge

Selection checklist for the IMS-1000

• Flow needed, 1000 gpm at 100 psi
• Inlet of 2.5 in NHT female swivel
• Fog angle of 140 degrees
• Reach in straight stream and in fog
• Water or foam solution
• Monitor and base strength
• Supply pipe size
• Brass grade

Installation, commissioning and maintenance notes for the IMS-1000

Fit the nozzle to the monitor outlet with the seal in place. Check that the monitor and its base can carry the reaction force. Flush the supply line before the first use. Grease the tip threads at the fitting. Flow the nozzle at test intervals and look at the pattern.

Requesting a quotation for the Elkhart Brass IMS-1000

Please send the flow, the inlet thread and the quantity. Seven Star LLC serves industrial customers in Oman and the GCC and replies with a quotation based on the information provided.

IMS-1000 rated flow

The rated flow is 1000 gpm, which is 3800 LPM, at 100 psi.

IMS-1000 inlet

The inlet is a 2.5 in NHT female swivel.

IMS-1000 fog pattern

The nozzle gives a wide 140 degree fog.

IMS-1000 reach

At 100 psi the reach is 263 ft in a straight stream and 100 ft in a wide fog.

IMS-1000 material

The standard body is brass UNS C84400, and marine brass is available on request.

IMS-1000 weight

The nozzle weighs 13.0 lb, which is 5.9 kg.

IMS-1000 temperature range

The ambient range is minus 35 to plus 232 degrees F.

IMS-1000 pattern change

The pattern can be changed while water is flowing.

Nozzle records for the IMS-1000

Record the test pressure, the pattern checked and the date of each flow test.

Choosing the right IMS-1000 monitor

Choose a monitor and base that can hold the reaction force of a 1000 gpm stream.