ST499IC03L32 Turbine Air Starter | Full Arc (30-90 PSI) | by Ingersoll Rand

ST499IC03L32 Turbine Air Starter | Full Arc (30-90 PSI) | by Ingersoll Rand

SKU:: ST499IC03L32
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Price: $3,221.28

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Description

Description

The Ingersoll Rand ST499IC03L32 is a genuine IR ST400-series full-arc (99%) turbine air starter built for low-pressure air supplies of 30 to 90 psi. It delivers 185 ft-lb (251 N·m) of breakaway torque and 26 hp (19 kW) at just 90 psi, and still cranks with 50 ft-lb at 30 psi. It mounts on an SAE No. 3 flange, turns left hand through a 12-tooth, 6/8 pitch code 32 pinion, and takes air through a 1 in. NPT threaded inlet. Its turbine motor needs no lubrication. Ingersoll Rand's ST400 series covers diesel engines from 5 to 60 liters in power generation, marine, rail and transportation service.

ST499IC03L32 Specifications

Ingersoll Rand ST499IC03L32 technical data
Manufacturer / series	Ingersoll Rand ST400 series (ST499 full-arc model)
Motor type	Radial turbine, 99% (full) arc, lube-free
Engagement	Inertia, overhung pinion
Operating pressure	30 to 90 psi (2.1 to 6.2 bar); 90 psi maximum
Maximum power	26 hp (19 kW) at 90 psi
Breakaway torque	185 ft-lb (251 N·m) at 90 psi
Speed at maximum power	1,650 rpm at 90 psi
Air consumption	765 scfm (361 L/s) at maximum power and 90 psi
Gear ratio	"C" ratio; gears and bearings run in a sealed oil bath
Mounting	SAE No. 3 flange (code 03); the removable flange can be rotated 360°
Pinion (code 32)	12 teeth, 6/8 diametral pitch
Rotation	Left hand (L). The right-hand version is the ST499IC03R31.
Air inlet	1 in. NPT threaded inlet (the I in the model number); the ST499C03L32 has an SAE J518 split-flange inlet
Engine size (ST400 series)	Diesel engines from 5 to 60 L (300 to 3,600 cu. in.)
Weight	38 lb (17.2 kg)
Lubrication	None required for the turbine motor
Service part	ST499-A41L full-arc left-hand liner assembly

Performance by Supply Pressure

A full-arc turbine is designed to make its torque at low pressure. Ingersoll Rand publishes these figures for the ST499:

Supply pressure	Breakaway torque	Speed at max power	Max power	Flow at max power
30 psi (2.1 bar)	50 ft-lb (68 N·m)	1,550 rpm	7 hp (5 kW)	320 scfm (151 L/s)
60 psi (4.1 bar)	115 ft-lb (156 N·m)	1,600 rpm	14 hp (10 kW)	550 scfm (260 L/s)
90 psi (6.2 bar)	185 ft-lb (251 N·m)	1,650 rpm	26 hp (19 kW)	765 scfm (361 L/s)

ST400, ST455 or ST499: Which Arc Do You Need?

The three ST400-series models share the same housing and mounting. They differ in the turbine arc, which sets the pressure they are built for:

Model	Turbine arc	Maximum pressure	Breakaway torque at max pressure	Best for
ST400	44%	150 psi	150 ft-lb at 150 psi	High-pressure air systems
ST455	55%	120 psi	185 ft-lb at 120 psi	Mid-pressure systems
ST499	99%	90 psi	185 ft-lb at 90 psi	Low-pressure plant air, 30 to 90 psi

If your air supply is regulated at or below 90 psi, the ST499 gives you the most torque. If you have 120 to 150 psi available, the part-arc ST400C03L32 is the better match. Never run an ST499 above its 90 psi nameplate rating.

Typical ST400-Series Installation

An ST400-series starter on a generator set, piped with a strainer, relay valve and solenoid control. Photo: Ingersoll Rand.

Ingersoll Rand's recommended ST400 installation uses:

ST900-267-24 1-1/2 in. strainer (300 mesh) to keep scale and debris out of the turbine
SRV125 1-1/4 in. relay valve (SRV125T for transit vehicles), or the ST400-C339 relay valve with top-mounted solenoid
150BMP-1051B (12 V) or 150BMP-2451B (24 V) solenoid valve, or an SMB-618 push-button valve or ST400-A339M manual control valve
ST400-K17 1 in. NPT inlet flange kit (replacement inlet flange)

Set the regulator so the pressure measured at the starter never exceeds the maximum stamped on the nameplate (90 psi for the ST499).

How to Read the Model Number

Code	Meaning
ST499	ST400 series, 99% (full) arc turbine, 90 psi maximum
I	1 in. NPT inlet (no letter = SAE split-flange inlet)
C	Gear ratio
03	SAE No. 3 mounting flange (01 = SAE No. 1)
L	Left-hand rotation (R = right hand)
32	Pinion: 12 teeth, 6/8 pitch, left hand

ST499IC03L32 FAQ

What is the difference between the ST499IC03L32 and the ST499C03L32?

Only the air inlet. The ST499IC03L32 has a 1 in. NPT threaded inlet. The ST499C03L32 has an SAE J518 split-flange inlet. Performance, mounting and pinion are identical, so choose the one that matches your existing air piping.

Why choose a turbine starter over a vane starter?

The ST400's turbine motor needs no lubrication, and its gears and bearings run in a sealed oil bath. There is no lubricator to fill and no oil mist in the exhaust. A full-arc turbine like the ST499 also keeps cranking at pressures as low as 30 psi, where it still delivers 50 ft-lb of breakaway torque.

How do I know if I need left-hand rotation?

Rotation must match your engine. The nameplate on your current starter shows it: an L in the model number means left hand and an R means right hand. The right-hand equivalent of this starter is the ST499IC03R31.

What engines does it fit?

The ST400 series covers diesel engines from 5 to 60 L with SAE No. 3 starter pads and 12-tooth, 6/8-pitch ring gear engagement. Ingersoll Rand application data lists this model for the Daihatsu 5DC-17 marine diesel. Look up your engine in our Air Starter Model Finder, or call us with the engine model and serial number.

Buy from a Factory-Authorized Ingersoll Rand Distributor

AirStartersDirect.com is a factory-authorized Ingersoll Rand distributor operated by Zampini Industrial Group, which has supplied engine starting equipment since 1987. Every ST499IC03L32 we sell is new, genuine Ingersoll Rand equipment. We also stock the complete ST400 series, relay valves, strainers and control valves.

Need help confirming fit? Call 1-800-353-4676 with your engine make, model and serial number for a fast quote and free selection help.

Specifications source: Ingersoll Rand, ST400 Series Air Starters and the Ingersoll Rand Engine Starting Systems catalog.

Ingersoll Rand pneumatic air starters can replace any factory mounted starter engine and simultaneously offer a variety of helpful benefits. Compared to conventional electric starters, a pneumatic air starter occupies considerably less space as it is run by air. Pneumatic air starters are also considered safer in hazardous environments as they do not produce electrical sparks like electric starters sometimes do, thus eliminating the risk of igniting flammable materials that may be present.

Ingersoll Rand air starters have significantly more torque than electric starters of equivalent size, and that allows even a small air starter to start very large engines and turbines. In addition, electric starters as well as their wiring may become excessively hot in the event that it takes longer than expected to start the engine, while air-starters can be run for as long as their air supply lasts. Turbine starters provide even more torque and tend to be simpler, and therefore are a natural fit for turbine engines. Turbine air starters are utilized extensively on large turbofan engines commercial and military aircraft; as well as marine ships and vessels, trains, heavy construction equipment, and more.

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