Watts ET-RA - Manual (Page 2)

© Watts Regulator Co., 1999
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.wattsreg.com
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscda.com
ES-ET-RA 9928-0 Printed in U.S.A.
ASME EXPANSION TANKS - Pressurized
Dimensions
Model A (DN) B C D E F G Weight*
Number in. mm in. mm in. mm in. mm in. mm in. mm lbs. kgs.
ET-RA 35 12 305 25 635 3 ⁄
4
19 – – .302" – – – – 40 18
ET-RA 50 14 356 25 635 3 ⁄
4
19 – – -32NC – – – – 50 23
ET-RA 85 16 400 37 940 1 25 1 ⁄
2
13 12 305 5 1 ⁄
2
140 90 41
ET-RA 130 20 508 37 940 1 25 1 ⁄
2
13 16 406 5 1 ⁄
2
140 125 57
ET-RA 200 24 610 43 1092 1 1 ⁄
2
38 1 ⁄
2
13 .302" 20 508 5 1 ⁄
4
133 210 95
ET-RA 300 24 610 55 1397 1 1 ⁄
2
38 3 ⁄
4
19 -32NC 20 508 5 1 ⁄
4
133 225 102
ET-RA 400 30 750 49 1245 1 1 ⁄
2
38 3 ⁄
4
19 24 610 5 1 ⁄
4
133 300 136
ET-RA 500 30 750 57 1448 1 1 ⁄
2
38 3 ⁄
4
19 24 610 5 1 ⁄
4
133 335 152
ET-RA 600 30 750 65 1651 1 1 ⁄
2
38 3 ⁄
4
19 24 610 5 1 ⁄
4
133 360 163
ET-RA 800 36 900 63 1600 1 1 ⁄
2
38 3 ⁄
4
19 30 762 5 1 ⁄
4
133 475 215
ET-RA 1000 36 900 74 1880 1 1 ⁄
2
38 3 ⁄
4
19 – – – – 710 322
ET-RA 1200 36 900 86 2184 1 1 ⁄
2
38 3 ⁄
4
19 – – – – 720 327
ET-RA 1400 36 900 99 2515 1 1 ⁄
2
38 3 ⁄
4
19 .302" – – – – 875 397
ET-RA 1600 48 1200 72 1829 1 1 ⁄
2
38 3 ⁄
4
19 -32NC – – – – 1100 499
ET-RA 2000 48 1200 85 2159 1 1 ⁄
2
38 3 ⁄
4
19 – – – – 1280 581
Note: Tanks are factory pre-charged at 12 psi and field adjustable. (*approximate)
CHARGING
VALVE
E
LIFT
RING
ET-RA 85 through ET-RA 800
SYSTEM
CONNECTION
C
LIFT RING
Note: On models ET-RA 85 thru ET-RA 800 both top and bottom connections (C and D) access the bladder.
C
LIFT
RING
2"
A
DRAIN
D
1" NPT
W/PLUG
ET-RA 1000 through ET-RA 2000
B
DIMENSIONS - WEIGHT
C
A
E
B
ET-RA 35 and ET-RA 50
D
E
A
B
G
F