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Lelit 9700050 Steam Boiler Safety Valve – 3 bar, 1/8″ M
$59.95
- Must be logged into your online account when purchasing to accrue EspressoPoints.
- For more information, please visit EspressoPoints.
- Parts are non-returnable and non-refundable unless damaged in transit.
- Parts do not include any over the phone technical support or instructions other than what is provided on the website.
- Parts do not come with any warranty.
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SKU: MC9700050
Category: Lelit Espresso Machines & Related Parts
Lelit 9700050 Steam Boiler Safety Valve – 3 bar, 1/8″ M
This safety valve (9700050) is for the Lelit Bianca (PL162T) & Mara X (PL62X) espresso machine models. Crescent wrench typically needed ~5/8″ (~16mm). Take out from bottom nut, not the top barbed nut. If this part leaks steam, it means the boiler is overheating from limescale on the PID sensor and the steam boiler gauge is over 3 bar.
If leaking steam when the boiler is under 3 bar on the steam boiler gauge, then it means particles from limescale or oxidation keeping the valve open.
SPP9700050
[ls_content_block id=”24679″]Lelit 9700050 Steam Boiler Safety Valve – 3 bar, 1/8″ M
| Brand | Lelit |
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4 reviews for Lelit 9700050 Steam Boiler Safety Valve – 3 bar, 1/8″ M
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I have a Homeland HCWS Espresso Water Filter and after some time I am now getting the steam "escape" issue. how can I determine the correct water filtering I need. I am very confused with water filtering. thanks Bill
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Q I have a Homeland HCWS Espresso Water Filter and after some time I am now getting the steam "esca...... Read more answer nowAsked by billgiannelli on August 23, 2025 10:25 amAnswered by the admin
Unfortunately, we admit that we are not water experts. It is not just about filtering, but softening. he challenges of water sources, including bottled water,are
- the water at your location may be different than a city water report, and/or
- the water at your location can change in mineral content over time, and/or
- every location has different types of water
- there are thousands of different water treatment systems which can act differently with different waters
The key is to find a system that reduces calcium, magnesium, and manganese while keep the other minerals at 80-120ppm TDS. Low salt is desired as well. Sorry, we are unable to provide further insight.
I have the BWT Bestmax S and am having the above issue where my bleeder valve continues to drip after the machine is fully heated. Would you suggest I replace the vacuum breaker valve and steam boiler safety valve?
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Q I have the BWT Bestmax S and am having the above issue where my bleeder valve continues to drip a...... Read more answer nowAsked by Aaron M on March 30, 2023 6:55 pmAnswered by the admin
Yes, we would suggest replacing both. The BWT in some cases may not be enough for certain waters.
Hi I have a Bianca Lelit and I have leak issue with my Safety Valve MC9700050. I think this is known issue, if I change it, the problem will eventually re happen again! Is there a workaround to change it for an other component, others brand/model, with the same specifications? Regards Ben
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Q Hi I have a Bianca Lelit and I have leak issue with my Safety Valve MC9700050. I think this is kn...... Read more answer nowAsked by Benoit-Pascal Blais on January 15, 2022 4:04 pmAnswered by the admin
The problem is the water. Customers who use softened water tend to not have this issue.
The bleeder valve will get a steam leak when corrosion results from purified waters, formulated waters, and hard waters. The valve gets stuck open and has a steam leak. Pinching the hsoe atatched to the bleeder valve after the machine is fully heated will confirm a steam leak once released after several seconds of holding.
The safety valve will also get corrosion to cause a steam leak OR the boiler is running hotter because the PID sensor has corrosion from the same aforementioned waters.
Just changing the above parts without correcting the true cause will result in constant repeating issues. For those customers who corrected their water, we have not heard back after this issue. For those customers who continue to use the same detrimental water, the problem recurs. This is why it is important to get to the true cause: the input is water.
To answer your question, there are no alternative parts to compensate for bad water.
Bimal D. (verified owner) –
I read it’s good practice to replace this valve at same time as vacuum breaker valve since if one goes due to scale and buildup, the other likely has same scale and buildup. Easy replacement.
Kevin Kempf (verified owner) –
Perfect fit. Exact replacement. Easy fix
Ronald Marsh (verified owner) –
It wasn’t identical to factory “failed valve” but fit without issue, and more importantly fixed my problems.
James Colburn (verified owner) –
As my Bianca ages and more maintenance is required I’m very glad that 1st-line is available for parts. This safety valve works perfect and no more annoy drips!