Household Biogas Desulfurizer & Pressure Regulator (up to 8 m³ Digesters)

Overview – desulfurizer, pressure gauge and flow switch in one box

Gas from a household digester must be cleaned and regulated before it reaches the burner. This wall-mounted unit does both jobs in a single blue ABS box: the desulfurizer stage strips hydrogen sulfide from the raw gas, while the built-in pressure gauge and adjustment switch on the front panel let the operator read the line pressure and regulate the gas flow to the appliance. One device, one wall bracket, two hose connections – that is the whole gas train for a small digester.

The box is sealed for outdoor installation, and a screw-cap outlet at the bottom gives access for replacing the desulfurizing material without opening the housing or disconnecting the piping. Hose barbs accept 8, 9 or 10 mm gas hose, which covers the standard tubing sizes used on household biogas systems.

Technical specifications

Values are taken from the manufacturer’s specification sheet. Pressure gauge range, allowable gas flow, pressure drop, outlet H2S level and material replacement interval depend on the project and are quoted on request – they are not stated here as guaranteed figures.

Key features

• Pressure gauge on the front panel – the operator sees the digester line pressure at a glance and can react before the flame goes weak.
• Adjustment switch – gas flow to the stove, lamp or heater is regulated at the purifier, so no extra valve is needed on the wall.
• Bottom screw-cap outlet – spent desulfurizing material is replaced through the capped outlet at the base; the box stays sealed and the piping stays connected.
• Sealed ABS housing – compact 330 × 225 × 75 mm body that mounts on any wall next to the digester or in the kitchen.

Where it fits

• Household digesters up to 8 m³ – fixed-dome or balloon plants feeding a single stove, lamp or water heater.
• Pre-treatment before appliances – mounted on the wall between the gas storage and the burner to protect it from H2S and to keep the flame steady.
• Larger plants – for digesters above 8 m³, see the 2-in-1 Biogas Desulfurizer & Dehydrator or the Dry Biogas Desulfurization Tank.

Frequently asked questions

Which hose size does it accept?
The inlet and outlet barbs accept 8, 9 or 10 mm gas hose, covering the common household tubing sizes.

How do I replace the desulfurizing material?
Unscrew the cap at the bottom of the box, replace the material, and close the cap – the piping does not need to be opened.

What if my digester is bigger than 8 m³?
Use the 2-in-1 desulfurizer and dehydrator for digesters up to 60 m³, or a dry desulfurization tank for larger plants. Contact us with your digester volume and we will confirm the right configuration.

Get a quotation

Tell us your digester volume and the appliance you are feeding. We will confirm the configuration, the shipping option and the price.

QINGDAO OCAT INTERNATIONAL TRADE CO., LTD.
Contact: Mr. Allen Chang
Tel: 0086 532 88751500
WhatsApp / WeChat: +86 139 6426 4321
E-mail: allen@ocatt.com
Add: R4002, Xiwang Tower, No. 138 Dunhua Road, Shibei District, Qingdao, China

See also: 2-in-1 Biogas Desulfurizer & Dehydrator | Dry Biogas Desulfurization Tank for H2S Removal | All the accessories of biogas system