Boiler house Vent heads
2
Dimensions/weights (approximate) in mm (inches) and kg (lbs)
Screwed
Description Size
Inlet connection
A B C Weight
A
203 (8.0) 203 (8.0) 203 (8.0) 203 (8.0)
137 (5.4) 137 (5.4) 145 (5.7) 145 (5.7)
2.08 (4.59) 2.08 (4.59) 2.70 (5.95) 2.70 (5.95)
Screwed BSP
-
VHT2
DN50
2"
Screwed NPT
-
B
Screwed BSP
-
Screwed NPT
-
VHT3
DN80
3"
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
Flanged
203 (8.0)
173 (6.8)
192 (7.6)
3.65 (8.05)
A
2.10 2
304 (12)
237 (9.3)
224 (8.8)
6.31 (13.9)
VHT4
DN100
4"
B
403 (16)
302.5 (11.9)
280 (11.0)
10.76 (23.72)
VHT6
DN150
6"
C
403 (16)
314 (12.4)
334 (13.1)
12.28 (27.07)
VHT8
DN200
8"
503 (20)
372.5 (14.7)
406 (16.0)
19.17 (42.26)
VHT10
DN250 10"
503 (20)
343.5 (13.5)
483 (19.0)
22.29 (49.14)
VHT12
DN300 12"
Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions supplied with the product. Installation note Installation of the screwed and flanged vent heads is relatively straight forward. The flanged vent heads have a lightweight flange drilled to suit both the PN and ASME flange standards. Disposal The product is recyclable. No ecological hazard is anticipated with the disposal of this product providing due care is taken.
How to specify Spirax Sarco type VHT with austenitic stainless steel construction, screwed / carbon steel flanges & internal baffle.
How to order Example: 1 off Spirax Sarco DN100 VHT4 vent head having a flanged EN 1092 PN16 inlet connection.
TI-P405-42 EMM Issue 4
VHT Vent Heads
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