Hyco SF4 Speedflow Expansion Vessel, Check Valve & Pressure Reducing Valve
SKU: 79425938792

Hyco SF4 Speedflow Expansion Vessel, Check Valve & Pressure Reducing Valve

Sale price$76.94 Regular price$85.49
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  • USA
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Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

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Description

Hyco SF4 Speedflow Expansion Vessel, Check Valve & Pressure Reducing ValveHyco SF4 Speedflow Expansion Vessel, Check Valve & Pressure Reducing Valve The Hyco SF4 Speedflow Expansion Vessel, Check Valve & Pressure Reducing Valve is a comprehensive accessory kit designed for use with Hyco Speedflow unvented water heaters. Depending on the specific installation requirements, additional components such as this set may be necessary to ensure compliance with UK water regulations. This accessory combines an expansion vessel, check

Hyco SF4 Speedflow Expansion Vessel, Check Valve & Pressure Reducing Valve

The Hyco SF4 Speedflow Expansion Vessel, Check Valve & Pressure Reducing Valve is a comprehensive accessory kit designed for use with Hyco Speedflow unvented water heaters. Depending on the specific installation requirements, additional components such as this set may be necessary to ensure compliance with UK water regulations.

This accessory combines an expansion vessel, check valve and pressure reducing valve to help maintain safe and efficient system operation. The expansion vessel manages pressure created by thermal expansion, the check valve prevents backflow, and the pressure reducing valve helps regulate incoming water pressure for improved system stability.

Designed for straightforward integration with Speedflow systems, the SF4 kit provides a reliable solution for installers needing to meet regulatory requirements while maintaining efficient hot water system performance.

Key Features

  • Expansion vessel, check valve and pressure reducing valve set
  • Designed for Hyco Speedflow unvented water heaters
  • Helps manage pressure caused by thermal expansion
  • Check valve prevents backflow within the system
  • Pressure reducing valve regulates incoming water pressure
  • Supports compliance with UK water regulations
  • Durable and reliable construction for long-term use

Documents

Data Sheet: View the data sheet

Instruction Manual: View the instruction manual

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 79425938792

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Scraps
Draper, US
★★★★★ 4
Good at price
Size: 9 Wide, Color: Sand
Fit a little small at my big toe but otherwise fit well. Heel rubbed slightly first 5 hour wear but no blister.
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Reviewed in the United States on May 9, 2026
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Lynn
Battle Creek, US
★★★★★ 5
Lightweight comfortable at a good price!
Size: 10.5, Color: Navy
These shoes are perfect. The color matches my navy outfits as well as my denim. They are comfortable and they look great. They are easy to pack lightweight and a great value. I am extremely satisfied and highly recommend!
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Reviewed in the United States on June 3, 2026
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PHOEBES
Fort Morgan, US
★★★★★ 3
REALLY CUTE SHOE BUT CUT WAY TOO SMALL!
Size: 8, Color: Black Patent
I received the black patent leather shoes today and they are so cute! Sadly I need to return them because they are cut way too small. I normally wear a 7.5 or 8 on dress shoes so I ordered the 8. They are so tight across the top that it's uncomfortable as soon as I put them on. They are smaller than a normal size 8 dress shoe. The big toe area is extremely uncomfortable because it doesn't allow any room for it at all, so my big toe just presses against the side and end of the shoe without even walking in them. I have very narrow feet and these still are too small for me. So I am returning them and I already ordered a 8.5 W and hope that will fit much better. The patent leather is very cute and adds just enough dressy that I can wear them with slacks or my Capri jeans. I like the slip on and the cushion foot bed because it feels soft.
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Reviewed in the United States on May 26, 2026
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Verified Purchase
Amazon Customer
Lexington, US
★★★★★ 5
Love these flats!
Size: 9 Wide, Color: Black White Faux Snake Skin, Size: 9 Wide, Color: Black White Faux Snake Skin
One of my favorite pair of flats! I’ve had these for several years and they are still comfortable, in good shape and really add a little spice to my outfits. I can wear these all day and not have any foot pain or discomfort as a result. The quality is good, fit is perfect and I tend to have difficulty with shoes due to bunions. Love these!!
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Reviewed in the United States on May 23, 2026
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lunaposas
Pawtucket, US
★★★★★ 5
LOVE LOVE.
Size: 7.5 Wide, Color: Beige
I love these shoes so much I had to write a review. So comfortable. Cushioned. Fits perfectly especially if you are more on the wide side. They are soft. Flexible. Easy slip ons you can walk around in all day. I want to try more colors.
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Reviewed in the United States on June 4, 2026

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