Tunstall Macon STV Series Manual page 5

FEATURES

Accurate and precise flow measurement

Accurate and precise flow balancing

Positive Shut-off

Offsetting Pressure/temperature ports, Self sealing with
optional Drain Kits

"Y" Pattern Globe style design

Multi-turn, 360º handwheel with vernier scale and
digital readout

Built in memory stop

Wide vairety of accessories available
STVL Series
NOMINAL DIMENSIONS & WEIGHTS
SIZE
A
Length
in mm
in 3.39
15
1/2"
mm 86.11
in 3.54
20
3/4"
mm 89.92
in 4.02
25
1"
mm 102.11
in 4.72
1-1/4" 32
mm 119.89
in 5.20
1-1/2" 40
mm 132.08
in 6.06/6.46
2" 50 STV/STVL
mm 154/164
FLOW CALCULATIONS
The Minimum Flow is calculated from the minimum recommended pressure drop,
1 ft WG (=3.0 kPa)
The Nominal Flow is 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 max 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 C
Height PIT Offset
lbs kg
3.74 1.57
1.2 0.53
95 40
3.74 1.65
1.3 0.58
95 42
3.78 1.73
1.7 0.77
96 44
3.78 1.85
2.7 1.20
96 47
4.25 1.93
3.3 1.50
108 49
4.37 2.09
5.1 2.30
111 53
Model STV / STVL
SPECIFICATIONS
Pressure Ratings:
Temperature Ratings:
Body, Bonnet:
End Connections:
Gaskets:
Seat Seal:
Handwheel:
Minimum
Handwheel
Flow
Turns
GPM 0.14
10
LPM
0.52
GPM 0.26
10
LPM
0.98
GPM 0.37
10
LPM
1.38
GPM 0.60
10
LPM
2.28
GPM 0.91
10
LPM
3.46
GPM 1.52
10
LPM
5.76
118 Exchange Street · Chicopee, MA 01013
Phone (413) 594-8695 · Fax (413) 598-8109
Section: Components
5
Submittal Data
300 psil (20 Bar)
-22ºF to 250ºF (-30ºC to 120ºC)
Dezincification Resistant Brass
STV - Female, NPT
STVL - Solder, SWT
EPDM
EPDM
Polyamide Plastic
STV Series
Valve Selection Guide
Nominal Maximum
Range of Flow
0.5 - 3.8
1.89 - 14.36
3.8 - 5.5
14.36 - 20.8
5.5 - 9.5
20.8 - 36
9.5 - 14
36 - 53
14 - 20
53 - 76
20 - 33
76 - 125
Tunstall Corporation
Bulletin-MB-STV-STVL-0915
Flow
12.1
45.7
17.4
65.7
30.0
113.4
44.6
169.0
66.4
251.0
107.2
406.0