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Main product image of 3/4" NPT Male Union AutoFill Filling Valve
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3/4" NPT Male Union AutoFill Filling Valve

Brand:
Caleffi
SKU:
535051A
Rating:
(3)
Q&A:
(1)
3/4" NPT Male Union AutoFill Filling Valve
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$110.75 each
In Stock
In Stock
Get 6 Tue, Jul 7
Order by today, receive Tuesday
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Easy Returns No restocking fee for 90 days

Product Highlights

Product Highlight: Material
Brass
Product Highlight: Max Pressure (PSI)
365 MAX PSI
Product Highlight: Connection Type
MNPT Union x MNPT Union Connection
Product Highlight: Size
3/4"
Product Highlight: Max Temp (F)
140°F Max Temp
Product Highlight: Pressure Set Point
15 psi

Description

The 5350 series AutoFill automatic filling valve is a pressure reducing valve which when installed on the water inlet piping in closed hydronic systems will maintain system pressure at a set value, automatically filling up with water as required. It fast fills the system to set pressure then automatically shuts off the water feed. This product is factory pre-set to 15 psi system pressure. To adjust the set pressure, simply turn the adjustment knob while observing the integral downstream pressure gauge. This product has the characteristic of being pre-adjustable, which means that it can be adjusted at the right pressure value before the system charging phase. After installation, the system pressure will automatically adjust itself to the set value and the water feed will stop when the set pressure is reached. The internal cartridge containing all the controlling components is pre-assembled as a self-contained unit, to facilitate inspection and maintenance procedures.

Technical specifications
  • Materials - Body: Brass
  • Cover: Glass Fiber Reinforced Nylon PA66G30
  • Control Spindle: Stainless Steel
  • Moving Parts: Brass
  • Diaphragm and Seals: NBR
  • Filter: Stainless Steel
Performance
  • Suitable fluids: Water
  • Max. Working Pressure: 365 psi (25 bar)
  • Downstream Pressure Setting Range: 6-90 psi (0.5-6 bar)
  • Factory Setting: 15 psi (1.035 bar)
  • Max. Working Yemperature: 140°F (0-60°C)
  • Pressure Gauge Scale: 0-100 psi (0-7 bar)
  • Filter Mesh Size: 0.51 mm (35 mesh)

Specs

Size:

3/4"

Connection Type:

MNPT Union x MNPT Union

Max Temp (F):

140°F

Max Pressure (PSI):

365

Pressure Set Point:

15 psi

Material:

Brass

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Product Reviews

4 out of 3 reviews
67% would recommend this product
4
out of 3 Reviews
67% would recommend this product
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5 star
33%
4 star
33%
3 star
33%
2 star
0%
1 star
0%
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Showing 1-3 of 3 reviews

good valve but...

How are you supposed to tighten the NPT connections? You need a huge Allen wrench or socket to do it right. Or am I missing something here?? The valve itself is great. A pressure gauge on the fill valve is brilliant.
Jeremy from TM
Ephrata, PA
6 years ago
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I would use this product again

This is an excellent auto fill assembly. Very easy to install and use.
Frapples2.0
Dayton, OH
8 years ago
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Good all purpose valve

Good working valve, adjusts easily, Replace the gauge, leaked out of the box. Installed a better gauge with lower pressure reading, installed on residential boiler, only 12 - 15 psi,
Fred the plumber
Northeast
11 years ago
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Product Q&A

1 Question
1 Question
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Q: Will this work for a combi gas boiler which requires a lead free autofill valve? In other words, is this AutoFill Filling Valve lead free?

Asked by Nai 12 years ago

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Verified Author and ReplyVerified Reply- Supplyhouse Staff

no its not lead free

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