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Rocket

Rocket Espresso Expansion/Overpressure Valve

Genuine Rocket Part 10–14 Bar Adjustable Hydraulic Pressure Control

Item Number: RE-C229900911

Expansion valve
  • Expansion valve
RRP $69.95 Save $5.05 Your Price $64.90
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Categories: Spare Parts
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Description

Rocket Espresso Expansion/Overpressure Valve

This genuine Rocket Espresso expansion valve, also known as an overpressure valve or OPV, is an adjustable hydraulic component used in selected Rocket espresso machines. It is identified by Rocket manufacturer part number C229900911.

The valve controls excess pressure within the machine's hydraulic circuit, opening when pressure reaches its set point and allowing excess water to be relieved through the outlet. Replacement may be required if the existing valve leaks, fails to regulate pressure correctly or no longer seats reliably.

C229900911 is confirmed in Rocket parts documentation for the Appartamento, R60V and R Nine One, with additional Rocket models also using this valve depending on production version. Confirm the existing part number or machine parts diagram before ordering.

Pressure adjustment and internal hydraulic servicing should be completed by a qualified coffee machine technician to ensure the valve is correctly installed and calibrated.

What’s in the Box?:

1 × Expansion/Overpressure Valve

Specifications:

  • Brand: Rocket Espresso
  • Manufacturer Part Number: C229900911
  • Product Type: Expansion/Overpressure Valve
  • Material: Brass
  • Pressure Rating: Adjustable 10–14 bar
  • Connection Size: 1/8" BSP female inlet
  • Outlet Size: 7 mm hose connection
  • Application: Hydraulic pressure regulation
  • Machine Compatibility: Selected Rocket Espresso machines including Appartamento, R60V and R Nine One using C229900911
  • Installation: Qualified technician recommended

    Features:

  • Genuine Rocket Espresso replacement part
  • Adjustable expansion/overpressure valve
  • 10–14 bar adjustment range
  • 1/8" BSP female inlet
  • 7 mm hose outlet
  • Rocket part number C229900911
  • Used across selected Rocket espresso machines
  • Technician installation and adjustment recommended

    Coffee Parts Thoughts:

    A small but important hydraulic service component when a compatible Rocket machine is no longer regulating pressure correctly or the existing valve is leaking. Matching C229900911 against the machine diagram is the safest way to order, particularly where Rocket model generations differ. Correct pressure adjustment should be carried out by a qualified technician.
  • Specifications
    Brand Rocket
    Warranty 1 Year
    Returns 14 Days Change of Mind (If Unused)
    Shipping & Returns

    Delivery time and costs

    Parts, accessories, Brew Bar and Tea Bar

    Standard delivery

    From $8.95 2-7 business days*

    Express delivery

    From $9.95 1-3 business days*
    Water filters

    Standard delivery

    From $8.95 2-7 business days*

    Express delivery

    From $9.95 1-3 business days*
    Coffee grinders

    Home grinders

    Calculated at checkout 1-3 business days*

    Commercial grinders

    Calculated at checkout 1-3 business days*
    Coffee machines

    Home machines

    Calculated at checkout 1-4 business days*

    Commercial machines

    Calculated at checkout 2-7 business days*

    *Delivery timeframes are estimates and start once your order is dispatched.

    Freight partners

    Within Australia

    Australia Post

    TNT Couriers

    Same day (Sydney metro)

    Capital Transport

    Civic Couriers

    We ship using Australia Post eParcel and a range of courier partners within Australia and internationally. If you are in Sydney, you may also be able to choose same day courier options or Click and Collect from our Pagewood warehouse.

    Shipping cost depends on the items in your cart and your delivery address. You can see the shipping price on the product page (where available) and at checkout before entering payment details.

    Orders placed before 3pm (Sydney time) on a business day are typically dispatched the same day. Deliveries are made Monday to Friday, usually between 8am and 6pm. Standard and express options may be available at checkout depending on the item and destination.

    For more details, visit our shipping and delivery page.

    Warranty

    Our products are supplied through Australian channels and are covered by Australian consumer guarantees and, where applicable, manufacturer warranty. For international orders shipped outside Australia, warranty support may require the item to be returned to Australia for assessment.

    Easy returns

    Most spare parts, accessories and brew gear can be returned within 14 days of purchase, subject to conditions and exclusions. If you paid with an eligible PayPal account, you may be able to claim return shipping costs through PayPal. For full details, read our returns policy.

    YOUR MACHINE ALSO WANTS



    This genuine Rocket Espresso expansion valve, also known as an overpressure valve or OPV, is an adjustable hydraulic component used in selected Rocket espresso machines. It is identified by Rocket manufacturer part number C229900911.

    The valve controls excess pressure within the machine's hydraulic circuit, opening when pressure reaches its set point and allowing excess water to be relieved through the outlet. Replacement may be required if the existing valve leaks, fails to regulate pressure correctly or no longer seats reliably.

    C229900911 is confirmed in Rocket parts documentation for the Appartamento, R60V and R Nine One, with additional Rocket models also using this valve depending on production version. Confirm the existing part number or machine parts diagram before ordering.

    Pressure adjustment and internal hydraulic servicing should be completed by a qualified coffee machine technician to ensure the valve is correctly installed and calibrated.