PL Series
2000ML-PL
2 L pressureless vessel for gravity feed
PL Series
Gravity Feed & Atmospheric Vessels
Pressureless stainless steel vessels, 2–16.5 L, in 304 or 316.
- Capacity
- 2 / 7.5 / 16.5 litres
- Material
- 304 stainless (316 optional)
- Valve
- ¼″ NPT stainless ball valve
Not every process needs pressure. SR-TEK PL Series pressureless vessels feed fluids by gravity through a stainless steel ball valve. They are made from 2 mm thick stainless steel 304 — or 316 on request — so the contents cannot corrode the vessel or become contaminated.
PL Series range
GRAVITY FEED VESSELS.
Gravity feed vs pressure feed
LET GRAVITYDO THE WORK.
Choose by how your fluid needs to move. If it flows freely to an outlet below the vessel, pressure adds nothing but equipment.
PL Series pressureless vessel
Gravity feed
- The fluid flows out under its own weight
- No compressed air, regulator or pressure rating
- The outlet sits below the vessel
- Best for free-flowing, low viscosity fluids
Pressure vessel
Pressure feed
- Compressed air pushes the fluid out
- Moves viscous fluids and feeds long lines
- Controlled, adjustable flow rate
- Regulator, gauge and safety relief valve
Construction and options
BUILT LIKE OUR PRESSURE VESSELS.
The same stainless construction and the same options as our pressure vessels — without the pressure.
Technical data
TECHNICAL SPECIFICATION
| Available capacities | 2 / 7.5 / 16.5 litres (25 / 50 / 100 L made to order) |
|---|---|
| Body | 2 mm thick stainless steel, stainless steel lid |
| Material | Stainless steel 304 or 316 |
| Standard valve | ¼″ NPT stainless steel ball valve |
| Operation | Pressureless, gravity feed |
| Options | ½″ NPT ball valve, air-powered agitation with choice of mixing blades, low level float switch, contactless level detection, additional ports |
Gravity feed vessel FAQ
TECHNICALQUESTIONS.
What is a gravity feed vessel used for?
A gravity feed vessel holds a fluid above the point of use and lets it flow out under its own weight through a valve at the outlet. It suits low viscosity fluids that do not need pressure to move — for example feeding a process line or a dispensing station from above.
When should I choose a pressureless vessel over a pressure vessel?
When gravity is enough to deliver the flow you need. If the fluid runs freely and the outlet sits below the vessel, a pressureless vessel is simpler: no compressed air, regulator or pressure rating to manage. Choose a pressure vessel when the fluid is viscous, has to be pushed through a long line or must be delivered at a controlled rate.
Which accessories can be fitted to an atmospheric vessel?
A ½″ NPT stainless steel ball valve in place of the standard ¼″ NPT valve, agitation from an air-powered motor with a choice of mixing blades, a low level float switch, contactless level detection and additional ports. Special and custom versions can be made for specific requirements.
Need technical advice?
SPEC YOUR GRAVITY FEED VESSEL.
Tell us your fluid, the capacity you need and the accessories your process requires.
Get expert support