Cla-Val 790-63 - Manual (Page 19)

Pressure Reducing Control
*SUGGESTED REPAIR PARTS
CRD
3 1/8
PRESSURE SETTING
ADJUSTING SCREW
(TURN CLOCKWISE
TO INCREASE SETTING
SECTION A-A
OPEN POSTION
FOR HIGH PRESSURE CONTROL
5 3/8
1 13/16
inlet
B
13 14
16
18
17
12
11
10
9
8
5
3
1 2
cover vent
B
3/8" NPT
16
19
Body and Disc
Retainer Detail
for Low Pressure
Control
SECTION B-B
CLOSED POSITION
20
18
17
15
4
A A
6 7
When ordering parts specify:
• All nameplate data
• Item Description
• Item number
CLA-VAL
Copyright Cla-Val 2008 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.com
©
PL-CRD (R-1/08)
PARTS LIST
Size
(inch)
Stock
Number
Adjustment Range
psi Ft of Water
3/8 71943-07A 2 - 6.5 4.5 - 15
3/8 71943-08J 2 - 30 4.5 - 69
3/8 71943-03K 15 - 75 35 - 173
3/8 71943-11C 20 - 105 46 - 242
3/8 71943-04H 30 - 300 69 - 692
Factory Set Pressure PSI per Turn *
2 - 6.5 set @ 3.5 psi .61
2 - 30 set @ 10 psi 3.0
15 - 75 set @ 20 psi 9.0
20 - 105 set @ 60 psi 12.0
30 - 300 set @ 60 psi 27.0
*Approximate-Final Adjustment should be
with a pressure gauge and with flow.
Item Description Material Part Number List Price
1 Cap PL 67628J
2 Adjusting Screw BRS 7188201D
3 Jam Nut (3/8-16) SS 6780106J
4* Machine Screw (Fil.Hd.) 8 Req'd 303 6757821B
5 Cover BRS C2544K
6 Nameplate Screw SS 67999D
7 Nameplate BRS C0022001G
8 Spring Guide 302 71881H
Spring Guide (20 - 105 psi) 303 205620F
9 Spring (15-75 psi) CHR/VAN 71884B
Spring (2 - 6.5 psi) SS 82575C
Spring (2 - 30 psi) SS 81594E
Spring (20 - 105 psi) 316 20632101E
Spring (30 - 300 psi) CHR/VAN 71885J
10 Hex Nut 303 71883D
11 Diaphragm Washer 302 71891G
12* Diaphragm NBR C6936D
13 Plug, Body BRS V5653A
14* Gasket Fiber 40174F
15 Plug BRS 6766003F
16* Disc Retainer Assy. (15 - 75 psi) BZ/Rub C5256H
Disc Retainer Assy. (2 - 30 psi) BZ/Rub C5255K
Disc Retainer Assy. (20 - 105 psi) BZ/Rub C5256H
Disc Retainer Assy. (30 - 300 psi) BZ/Rub C5256H
17 Yoke VBZ V6951H
18 Body & 1/4" Seat Assy BR/SS 8339702G
19* Bucking Spring (2 - 6.5 psi)(2 - 30psi) 302 V0558G
20 Belleville Washer STL 7055007E
* Repair Kit (No Bucking Spring) Buna ® -N 9170003K
* Repair Kit (with Bucking Spring) Buna ® -N 9170002B