One pump has a fixed output, so each extra gun gets a smaller share and needs a smaller tip. Titan lists maximum tips by gun count: on a Hydra X 4540, 0.043 in. for two guns down to 0.029 in. for five. Titan describes multiple guns as possible only when the coating, pressure and tip sizes permit.
Why tip size shrinks as guns are added
A pump delivers a set volume of coating. Run one gun and it takes all of it; run four and each gun gets about a quarter. A large tip on every gun would ask for more coating than the pump supplies, and pressure would fall. That is why Titan publishes a maximum tip for each gun count and why the number keeps dropping as guns are added.
Titan's PowrTwin literature words it as more than one gun when the coating, pressure and tip sizes permit. Treat gun count as a limit to check, not a promise. A thick coating, a worn pump or a long hose run can mean fewer guns than the table allows.
Titan's maximum tip sizes by gun count
Maximum tip size listed by Titan (hydraulic piston sprayers)
| Sprayer | Guns | Maximum tip |
|---|---|---|
| Hydra X 4540 | 2 | 0.043 in. |
| Hydra X 4540 | 3 | 0.035 in. |
| Hydra X 4540 | 4 | 0.031 in. |
| Hydra X 4540 | 5 | 0.029 in. |
| Hydra X 7230 | 2 | 0.035 in. |
| Hydra X 7230 | 5 | 0.021 in. |
| PowrTex 6900SF (gas) | 1 | 0.048 in. |
| PowrTex 6900SF (gas) | 2 | 0.033 in. |
| PowrTex 6900SF (gas) | 3 | 0.023 in. |
| PowrTex 6900SF (gas) | 4 | 0.019 in. |
The PowrTex 6900SF gas figures come from a single source, Titan's manual excerpt, so check your own manual. We have no verified gun-count tip table for the Hydra M or Pro IV, so use their manuals.
Read the table as a ceiling. The 7230 shows it well: it works at 7250 psi and can take up to five guns, but only with a 0.021 in. tip at that count, because its delivery is lower than the 4540's. Titan lists the 4540 for up to six guns, but we have no verified tip size for six.
Manifolds and outlets
The Hydra manual says to connect a manifold kit to the single gun outlet and to plug any unused outlets. That is the point where one pump becomes several guns, so confirm the plugs are tight before you pressurize. The Hydra M and Pro IV gun manifold assemblies are on the outlet accessories page.
On the PowrTex 6900SF and 12000SV, the accessories page lists a 975-312 two-gun manifold with ball valves. The Hydra X side is on the Hydra X accessories page.
Pressure and hose
Never run any part of the system above the lowest working-pressure rating in it. With several guns that means every hose, whip and gun on the manifold, not just the main hose. Use only airless-rated, grounded hose as the manufacturer specifies, and follow the pressure relief procedure in your manual before changing a tip or moving a hose.
Signs the pump is overloaded
- A surging pattern. The Hydra M manual's answer is a pulsation dampener or fewer guns.
- Coarse, streaky edges or tails in the fan, which point to a worn tip or too little delivery for the tip size.
- Pressure that drops when the second or third gun is opened.
Before blaming the pump, clean the gun and pump filters. A partly blocked filter causes pressure loss, pulsing and spitting, and a multi-gun setup has more of them. A worn tip has a wider orifice than the table assumes, so it uses more coating than you planned.
Parts to keep ready
- 930-005, 930-006 and 930-007 manifold filters on the PowrTex 6900SF / 12000SV page.
- 975-312 two-gun manifold with ball valves.
- 430-361 Coolflo and 314-480 Piston Lube.
Confirm fitment against your model's diagram, or call (713) 931-0006 with the model and serial number. Our Hydra series page is the place to start for Hydra models.
Multi-gun parts to keep on the truck:
The Short Version
Add a gun and drop the tip. Use the maximum tip for your gun count as a ceiling, plug unused outlets, keep filters clean, and treat a surging pattern as a sign to add a dampener or remove a gun.
Setting up more than one gun?
Call (713) 931-0006 with your model and serial number and our parts team will help you find the manifold and filter parts.
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