Product Handbook 2026 - Volume 1

Boiler house Vent heads

2

Local regulations may restrict the use of this product to below the conditions quoted. In the interests of development and improvement of the product, we reserve the right to change the specification without notice. © Copyright 2024

TI-P405-42 EMM Issue 4

VHT Vent Heads

Description Spirax Sarco VHT vent heads are designed for fitting to vertical open ended steam vent pipes. The vent head will discharge dry steam safely to the atmosphere, avoiding the possibility of discomfort or even injury to personnel and material damage to buildings. The vent head incorporates an internal baffle to separate entrained water from the steam. Principle features - Efficient separation. - Stainless steel body for long maintenance free life. - A simple and effective vent head for general applications. Applications Vent heads are ideal for use on blowdown vessels, condensate vessels, boiler feedtanks, hot water storage tanks etc. Warning: Vent heads must not be used for safety valve outlets. Vent heads are selected to be the same nominal size as the vent pipe.

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Sizes and pipe connections Description Size

Materials Body

Inlet connection

Austenitic stainless steel 304L

Flanges

Screwed BSP Screwed NPT

Carbon steel, black electrophoretic coating

VHT2

DN50

2"

Screwed BSP Screwed NPT Flanged EN 1092 PN16 or ASME 150 Flanged EN 1092 PN16 or ASME 150 Flanged EN 1092 PN16 or ASME 150 Flanged EN 1092 PN16 or ASME 150 Flanged EN 1092 PN16 or ASME 150 Flanged EN 1092 PN16 or ASME 150

VHT3

DN80

3"

VHT4

DN100

4"

VHT6

DN150

6"

VHT8

DN200

8"

VHT10

DN250

10"

VHT12

DN300

12"

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