Tunstall Macon STV Series Manual page 9

FEATURES

Accurate and precise flow measurement

Accurate and precise flow balancing

Positive shut-off

"Y" Pattern Globe style design

Multi-turn, 360º handwheel with vernier scale and
digital readout

Built in memory stop

Offsetting Pressure/Temperature ports, Self sealing with
optional Drain Kits

Wide vairety of accessories available
NOMINAL DIMENSIONS & WEIGHTS
SIZE
A
Length
in mm
in 11.42
2-1/2" 65
mm 290
in 12.2
3" 80
mm 310
in 13.78
4" 100
mm 350
in 15.75
5" 125
mm 400
in 18.9
6" 150
mm 480
FLOW CALCULATIONS
The Minimum Flow is calculated from the minimum recommended pressure drop,
1 ft WG (=3.0 kPa)
The Nominal Flow is calculated from the maximum setting of the valve and the minimum recommended pressure drop,
2 ft WG (=6.0 kPa)
The Maximum Flow is calculated from the maximum setting of the valve and the maximum pressure drop,
20 ft WG (=60.0 kPa)
Optional features and accessories available for this
Macon product are an extra charge, and not included
in the standard model price.
www.maconbalancing.com
WEIGHT
B Handwheel
Height Turns
lbs kg
8.94
30.9 14 10
226
9.5
44.1 20 10
241
10.2
57.3 26 10
259
11.73
88.2 40 10
298
12.05
110.2 50 10
306
SPECIFICATIONS
Pressure Ratings:
Temperature Ratings:
Body:
End Connections:
Gaskets:
Seat Seal:
Handwheel:
Valve Selection Guide
Minimum
Flow
GPM 2.13
LPM 8.07
GPM 4.19
LPM 15.9
GPM 6.09
LPM 23.0
GPM 7.61
LPM 28.8
GPM 13.7
LPM 51.9
Tunstall Corporation
118 Exchange Street · Chicopee, MA 01013
Phone (413) 594-8695 · Fax (413) 598-8109
Section: Components
9
Model STVA
2-1/2" to 6"
Submittal Data
235 psi / 16 bar (PN 16)
-14ºF to 250ºF (-25ºC to 120ºC)
Cast Iron
AMSI 125# Flanged
EPDM
PTFE
Polyamide Plastic
Nominal Maximum
Range of Flow Flow
33 - 100 318.3
125 - 378 1205
100 - 117 374.5
378 - 442 1418
117 - 200 646.8
442 - 756 2448
200 - 320 1025
756 - 1210 3879
320 - 440 1447
1210 - 1663 5477
Bulletin-MB-STVA-1016