Cla-Val 37 Series - Manual (Page 5)

C
B
FULL OPEN
CLOSED
A
Air Intake
(Vacuum Break)
OUTLET
AIR
EXHAUST
INLET
20
4
23
9
1
Inlet Steel
Disc
Outlet Steel
Disc
Steel Cad - Plated
Lock Nut
Steel
Adjusting Screw
Air Throttle Device (Double Port)
For Series 37 Well Service Valves
For Reference Only • Individual Parts Not Available • Sold only as complete unit.
Series TD
Design Function
CLA-VAL
Copyright Cla-Val 2013 Printed in USA Specifications subject to change without notice.
P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: [email protected] • Website cla-val.co
©
PL-TD Throttle Device (R-5/2014)
PARTS LIST
Series TD Air Throttling device is supplied stan-
dard on 1/2” - 3” size Air Vacuum Valves designed
for well service. The Air Throttling Device with
double ports permits regulating volume of air dis-
charge from vertical turbine well pump column
there by to cushion the shock that would other-
wise occur from the rising water column as it
impacts against the closed discharge pump
check or control valve. Utilizing the air throttling
device insures prevention of damage to the
pumping system from repeated shocks with each
pump start. Additionally while port No. 1 of the air
throttle device regulates air discharge
Port. No.2 allows full unrestricted air into the col-
umn for full vacuum prevention and resulting
damage that would otherwise occur to pump
seals, pipe joints and to the pump itself, If started
up under full head because the column under
vacuum and has not drained. The air throttle
device can be ordered separately for field instal-
lation on existing pumps
Detail # Part Name
20
4
23
9
1
Steel Guide Shaft
Stainless Steel Spring
Stainless Steel Hood
Stainless Steel Guide Bushing
Cast Iron body
Parts Listed for reference only.
Not sold individually.
Model #
H-TD
1-TD
2-TD
3-TD
Stock #
27001-01H
27000-02F
27000-03D
27000-04B
Size NPT
1/2"
1”
2"
3"
A
4 7/16”
5 3/4”
8 7/8”
12 5/8”
B
1 7/16”
2 1/8”
3 1/8”
4 5/16”
C
2”
3”
4 5/16”
6 7/16”
Wt. Lbs.
2
6
10
15