SKU: 24204999099

CALEFFI 533555H High Performance 20mm Pressure Reduction Valve, 100-600kPa Adjustable

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Description

CALEFFI 533555H High Performance 20mm Pressure Reduction Valve, 100-600kPa AdjustableOverview The Caleffi 533555H 20mm 3 4" inline high performance pressure reduction valve is made in Italy and Australia Watermark approved. The "H" in the models name indicates this is a high performance version of pressure reduction valves in Caleffi ranges with a high temperature rating at 80C and a high inlet pressure rating at 2000kPa (VS standard Caleffi version at 40C and 1600kPa respectively). The valve body casting and dimensions are the same

Overview

The Caleffi 533555H 20mm 3/4" inline high performance pressure reduction valve is made in Italy and Australia Watermark approved. The "H" in the model’s name indicates this is a high-performance version of pressure reduction valves in Caleffi ranges with a high temperature rating at 80°C and a high inlet pressure rating at 2000kPa (VS standard Caleffi version at 40°C and 1600kPa respectively). The valve body casting and dimensions are the same between the H and standard Caleffi pressure reduction valves, but the cartridges are different. The comparison photos between the 2 models are shown in the photo gallery for your reference. The standard Caleffi pressure valve has the same model’s name of 533555 without the "H" and is sold also at my store at a cheaper price.

The Caleffi 533555H pressure reduction valve features a pressure adjustment range of 100-600kPa with a factory setting at 500kPa. Caleffi is one of a rare few manufacturers in Australia offering pressure reduction valves that can adjust to a pressure setting as low as 100kPa, which is required for specialized applications.

The pressure reduction valves are commonly installed in residential plumbing works such as after water meters or just before entering houses. The pressure reduction valves can ensure a stable water supply pressure supply, despite the fluctuations in the mains water supply pressure from the streets. 

The pressure reduction valves can serve as a more reliable and versatile alternatives to more traditional pressure limiting valves, when used in hot water services such as electric, heat pump, gas storage and solar hot water heaters. The pressure reduction valve employs a membrane design with a stiff pre-loaded adjustable spring, opposed to a sliding piston mechanism found in a pressure limiting valve which often causes failures from clogging up. 

In real world installations, it is sometimes found that pressure limiting valves cannot limit pressures sufficiently in places where unusually high street mains pressures are present. This can cause troubles with ECV and PTR valves leaking on hot water services. The pressure reduction valves can be used in such situations and offer a far better pressure control from our in-field experiences over the years in our own plumbing jobs in Brisbane. 

The pressure reduction valve comes with a BSP 6mm test plug inbuilt, where an optional pressure gauge can be inserted for pressure measurement at the outlet. It must be noted that the pressure gauge is only intended to be used as a measurement tool and must be removed after use, as it could rust inside out if left in a wet environment for prolonged periods of time. 

 

Technical Details

  • Manufacturer: CALEFFI, Made in Italy
  • Australia Watermark Approved
  • Model: 533555H
  • Specifications:
    • Flow Rate: 30L/min@100kPa; 120L/min@500kPa; 125L/min@600kPa
    • Maximum Working Temperature: 80°C
    • Maximum Upstream (Inlet) Pressure: 2000kPa
    • Downstream (Outlet) Setting Pressure Range: 100 kPa - 600 kPa 
    • Factory Pressure Setting: 500kPa
    • Optional pressure gauge can be inserted for downstream pressure measurement via the BSP 6mm test plug 
    • Extractable and serviceable cartridge with stainless steel filter mesh
  • Thread Size: 3/4" BSP (20mm) Female Thread (20FI x 20FI)
  • Physical Thread Measurement: 26.441mm internal diameter, refer to the BSP vs Physical Thread Measurement Table in the photo gallery
  • Material: DR Brass Body
  • Intended Use: Hot water heaters and special applications in high temperature or pressure situations
  • SKU: 533555H and 533555H-PRG

 

Package Contents

- Caleffi 533555H 20mm 3/4" inline pressure reduction valve

- Package Weight 500g (620g with the optional gauge)

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SKU: 24204999099

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I've loved Crystal Wilkinson's fiction for so long, so I'm thrilled to see her new book of poems (along with some essays and gorgeous/compelling artwork by Ron Davis). So many memorable image systems work their ways through the poems: creek water, tobacco, the Black body, blood, knives, food and kitchens--symbols and themes which have always marked Wilkinson's oeuvre in one way or another. Her language is lyrical in describing the brutalities of farm life, abuse, grief, and loss. This poetry collection is just stunning!
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It takes a lot nowadays for me to rate any Fiction book 5 stars. I read way more non-fiction, and usually only read highly recommended fiction, or some that's given to me. There are plenty of other reviews here that tell you how it's not a "happy" book (why that matters i dont know), so i wont go on about that part. I dont base my reading choices on whether they have a happy fantasy story. This story is very real. The writing is really good. I have several points that i use to rate a book: the story itself, the actual writing style, the 'entertainment' value, the emotions it brings out - laughter, sadness, etc., and if it's very memorable - either by being very different than anything i've ever read, or by something else about it being very different. The only point out of all of those that i wouldnt give a 5 would be the writing style/prose - which i'd give a 4. It's very good, but not "amazing" to me like some authors are. The author brought me into the characters - where i could feel what they were feeling, and i understood why they did the 'bad' things they did - totally. I felt the way they lived, the area, the poverty... As the story progressed, i stayed up one night for HOURS wanting to know what happened - until the sun rose actually. As the finale was coming - which i had no idea would be the way it was - i was literally gripping the book with both hands and holding it up to my face. I realized this and laughed to myself since i hadnt even noticed. Then - i sobbed thru the last 20 pgs - i havent cried from ANY fiction for a long time. Yes, i get into books and really let them take me away, but this book has a special kind of writing and a special story that i never expected to effect me sooo much. The author THEN does something so amazing at the very end - when i couldnt believe it could get any better. I KNEW what i wanted to happen - and i kept thinking to myself, "no, it wont - because it will just seem to corny if it does." (Even tho i wanted it so much.) She made it happen in a special way, without making it corny but while bringing me the hope and good feeling i needed after all the sobbing. (I dont want to give anything away just in case you dont know the story.) This book scores an A+. If you love good, moving, American fiction you will love this.
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