Valves

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DESIGN ENGINEERS

01

Holby Brochure

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02

Detail No. 6 – Single Boiler Installation

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03

Detail No. 8 – Dual Boiler Installation

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04

Detail No. 9 – Holby Diverting Application

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Detail No. 11 – Single Hot Water Storage Heater

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Detail No. 13 – Storage Tank with Multiple Holby Valves

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07

Valve Specifications

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Valve Dimensions

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Valve Pressure Drop Data

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10

The Importance of Hot Water Recirculation, (Rev. 11/15/22)

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Owners / Installers

01

Holby Brochure

PDF
02

Detail No. 6 – Single Boiler Installation

PDF
03

Detail No. 8 – Dual Boiler Installation

PDF
04

Detail No. 9 – Holby Diverting Application

PDF
05

Detail No. 11 – Single Hot Water Storage Heater

PDF
06

Detail No. 13 – Storage Tank with Multiple Holby Valves

PDF
07

Installation and Adjustment Instructions, (Ships With Parts)

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Exploded Parts View and Part Numbers

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09

Hanging Instructions, Rev. 3/25/2024, (Ships with Valves)

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10

Holby Valve Sizing Guide

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11

Holby Cleaning Tool Instructions

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12

The Importance of Hot Water Recirculation, (Rev. 11/15/22)

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Valve Downloads
2D CAD, 3D CAD & REVIT FILES

HTV050

1/2” Holby Tempering Valve, HTV050

HTV075

3/4" Holby Tempering Valve, HTV075

HTV100

1" Holby Tempering Valve, HTV100

HTV125

1-1/4" Holby Tempering Valve, HTV125

HTV150

1-1/2" Holby Tempering Valve, HTV150

HTV200

2" Holby Tempering Valve, HTV200

HTV250

2-1/2" Holby Tempering Valve, HTV250

HTV300

3" Holby Tempering Valve, HTV300

HTV400

4" Holby Tempering Valve, HTV400

The Holby Tempering Valve is rugged and built to last

Constructed entirely of bronze and copper, it is hydrostatically tested to a pressure of 300 pounds per square inch (psig)—and includes the following features

Simple valve design

Removal and replacement of the valve’s three internal parts is so simple that it could literally be done blindfolded. While we do not recommend a blindfold, there is no other thermostatic mixing valve that can match our ease of service.
holby2 1 valve
A long mixing chamber with vanes at an angle to the longitudinal valve axis, which allows a thorough mix of hot and cold water. The unusual length of the hydraulic thermostatic element assures effective surface contact with the water.
Large hot and cold water passages result in very low pressure drop through the valve.

Thermostatic element that is located inside the body of the valve, where hot and cold water streams are mixed. This element is immediately sensitive to water temperature changes, and makes proper corrections by opening or closing the valve’s hot and cold water inlets.

Heavy, non-ferrous tube where sensitive parts of the thermostatic element are sealed and protected from continuous water flow.

Valve sizes up to 4 inch allow high flow rates with a single valve resulting in installation and service savings over Hi-Low valve types and parallel Hi-Low valve configurations.

Extraordinary length of the thermostatic element, which provides 15 to 20 times the number of corrugations found in the usual short thermostat. The total sensing element expansion is divided over these numerous corrugations, and the flexing of each is reduced to mere thousandths of an inch with resulting long life of the instrument.

Nut and bolts
holby4000-2 1
Extraordinary length of the thermostatic element, which provides 15 to 20 times the number of corrugations found in the usual short thermostat. The total sensing element expansion is divided over these numerous corrugations, and the flexing of each is reduced to mere thousandths of an inch with resulting long life of the instrument.
Notes:

Maximum Operating Pressure 125 PSIG.
The Holby Tempering Valve is not an anti-scald valve.

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