valve_240px_1out_flh10_pnh15_mth5_0

A single membrane valve, 240 px across, with a thicker stack than any other valve here: five times the membrane thickness, and chambers 3.3 times as high on the fluid side and 2.5 times on the air side. It keeps its file name.

Variants

Sizes below are given in px: units of the design grid these parts were drawn on, where one unit is 0.0076 mm. That is not the printer's pixel. The printer has its own, different pixel size, and nothing on this page is expressed in it — see Hardware and process.

`valve_240px_1out_flh10_pnh15_mth5_0`

H.R.3.3 design

Parameters for valve_240px_1out_flh10_pnh15_mth5_0
Valve diameter	240 px
Where liquid enters the chamber	Centre
Number of outlets	1
Membrane thickness	5 layers
Fluid chamber height	10 layers
Air chamber height	15 layers
Channel cross-section	8 px × 6 layers
Footprint	360 × 360 px
Ports	1 fluid in, 1 fluid out, 1 air in, 1 air out
Layout grid	0.0076 mm per px

Files for this variant

LEFvalve_240px_1out_flh10_pnh15_mth5_0.lef1.0 KBDownload
SCADvalve_240px_1out_flh10_pnh15_mth5_0.scad45.8 KBDownload
STLvalve_240px_1out_flh10_pnh15_mth5_0.stl55.8 KBDownload

Credit. Gale Lab, University of Utah. The lab's own design, made with the lab's generator scripts; not in the public design kit (utah-MFDA/h.r.3.3_pdk). Licence: MIT (Copyright (c) 2026 Gale Lab, University of Utah).

Technical details — where these descriptions come from

Against every other valve: membrane 5 layers against 1, fluid chamber 10 against 3, air chamber 15 against 6. It is also the largest, 240 px across where the others are 20 to 190. Its inlet opens at the centre of the chamber, as in the trunk-outlet valves valve_20px_1out_0, valve_80px_1 and valve_80px_1out_0; the others' open near the edge. It is not the thickest membrane in the catalogue: the 22 µm-grid pumps pump_60px_centerfed_22um_0 and pump_91px_centerfed_22um_0 have 9 and 10 layers.

Every number on this page is read out of the variant's own .scad source at build time, not copied from the old catalogue text. Sizes are given in the layout grid the cells are drawn on — px here is that grid, whose default is stated per variant below. It is not the printer's pixel pitch, which is a different number; see Hardware and process.

What the status words mean

Each variant's status names the printer it is drawn for: the H.R.3.3, the printer the README of the lab's process design kit names.

Tested in the lab with real chemistry	Measured against known chemistry in physical experiments.
Printed and measured on the bench	Printed, and its behaviour measured on the bench matches the design.
A test print	A physical article exists.
Checked in CAD	Modelled and geometry-checked in CAD.
Made by the design software	Ran end-to-end through the pipeline.
An idea	A design on paper or in a wizard spec.
A design for its printer	Drawn on its design kit's grid for the printer the kit is made for, which its status names.

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