HVAC Hydronics & Backflow - 5-78
WATTS
REDUCED PRESSURE ZONE BACKFLOW PREVENTERS
Series 909, LF909 3/4 " - 2 "
*
Relief valve service
parts kit
Cover
First check
service parts kit
Cover
o-ring
(2) Piston
o-rings
Second check
service parts kit
Diaphragm
(2) RV
o-rings
NOTE:
No special tools
required to service
Series 909.
Cover not
included
Seat
Seat
o-ring
*Note: Rubber seat disc can be replaced. However, disc holder
and disc retainer are permanently bonded to prevent failure.
Check valve kits:
Cat. #
EDP #
First Check Kits:
24940
* 0887120
24941* 0794063
Second Check Kits:
24944
First Check
Second Check
Body
Spring
Disc
assembly
Kit #
Size
RK9O9CK1
RK9O9CK1
24942* 0887122 RK 909 CK1SS*
24943* 0887135 RK 909 CK1SS*
* 0887121
24945* 0794064
RK9O9CK2
RK9O9CK2
24946* 0887123 RK 909 CK2SS*
24947* 0887136 RK 909 CK2SS*
3/4 " - 1 "
11/4 - 2 "
3/4 " - 1 "
11/4 " - 2 "
3/4 " - 1 "
11/4 - 2 "
3/4 " - 1 "
11/4 " - 2 "
Kit consists of: disc assembly, spring, seat, seat o-ring, cover o-ring
and lubricant.
Rubber Parts for Both Checks:
24948
* 0887129
24949* 0887142
Complete Rubber Parts:
24950
* 0887130
24951* 0887144
RK 909 RC3
RK 909 RC3
3/4 " - 1 "
11/4 " - 2 "
Kit consists of: disc assembly, seat o-ring, cover o-ring and lubricant.
RK 909 RT
RK 909 RT
3/4 " - 1 "
11/4 " - 2 "
Kit consists of: disc assembly, seat o-ring, RV diaphragm, RV o-rings, piston
o-rings, cover o-rings and lubricant.
Cat. #
EDP #
Seat Kits for One Check:
24952
* 0887124
24953* 0887139
Kit #
RK9O9S
RK 909 S
24954* 0887125 RK 909 S~SS*
24955* 0887140 RK 909 S~SS*
Kit consists of: seat, seat o-ring and lubricant.
Cover Kits:
24956
* 0794072
24957* 0794073
24958* 0794074
RK 9O9 C1
RK 909 C2
RK 909 VC
24959* 0794075 RK 909M1 C4
24960* 0794076 RK 909M1 VC
Polymer Coated Valves:
24961
3/4 " - 1 "
3/4 " - 1 "
3/4 " - 1 "
11/4 " - 2 "
11/4 " - 2 "
Kit consists of: cover, cover o-ring and lubricant.
* 0887780 RK 909 PC OK1
24962* 0887781 RK 909 PC CK2
24963* 0887782 RK 909 PC OK1
24964* 0887783 RK 909 PC CK2
3/4 " - 1 "
11/4 - 2 "
3/4 " - 1 "
11/4 " - 2 "
Kit consists of: disc assembly, seat, seat o-ring, sleeve, check spring, PC cover
and cover o-ring.
Size
3/4 " - 1 "
11/4 - 2 "
3/4 " - 1 "
11/4 " - 2 "
5-78
REVISION 12/10/14
https://www.markspp.com/Catalog/Detail/23042
https://www.markspp.com/Catalog/Detail/23054
https://www.markspp.com/Catalog/Detail/23043
https://www.markspp.com/Catalog/Detail/23055
https://www.markspp.com/Catalog/Detail/23044
https://www.markspp.com/Catalog/Detail/23056
https://www.markspp.com/Catalog/Detail/23045
https://www.markspp.com/Catalog/Detail/23057
https://www.markspp.com/Catalog/Detail/23046
https://www.markspp.com/Catalog/Detail/23047
https://www.markspp.com/Catalog/Detail/23048
https://www.markspp.com/Catalog/Detail/23058
https://www.markspp.com/Catalog/Detail/23049
https://www.markspp.com/Catalog/Detail/23059
https://www.markspp.com/Catalog/Detail/23060
https://www.markspp.com/Catalog/Detail/23061
https://www.markspp.com/Catalog/Detail/23062
https://www.markspp.com/Catalog/Detail/23050
https://www.markspp.com/Catalog/Detail/23051
https://www.markspp.com/Catalog/Detail/23063
https://www.markspp.com/Catalog/Detail/23064
https://www.markspp.com/Catalog/Detail/23065
https://www.markspp.com/Catalog/Detail/23052
https://www.markspp.com/Catalog/Detail/23066
https://www.markspp.com/Catalog/Detail/23053
HVAC Hydronics & Backflow
Table of Contents for the Digital Edition of HVAC Hydronics & Backflow
HVAC Hydronics & Backflow - Section5-cover
HVAC Hydronics & Backflow - Cover 2
HVAC Hydronics & Backflow - Section5
HVAC Hydronics & Backflow - Section5a
HVAC Hydronics & Backflow - 5-l
HVAC Hydronics & Backflow - 5-ll
HVAC Hydronics & Backflow - 5-1
HVAC Hydronics & Backflow - 5-2
HVAC Hydronics & Backflow - 5-3
HVAC Hydronics & Backflow - 5-4
HVAC Hydronics & Backflow - 5-5
HVAC Hydronics & Backflow - 5-6
HVAC Hydronics & Backflow - 5-7
HVAC Hydronics & Backflow - 5-8
HVAC Hydronics & Backflow - 5-9
HVAC Hydronics & Backflow - 5-10
HVAC Hydronics & Backflow - 5-11
HVAC Hydronics & Backflow - 5-12
HVAC Hydronics & Backflow - 5-12A
HVAC Hydronics & Backflow - 5-12B
HVAC Hydronics & Backflow - 5-12C
HVAC Hydronics & Backflow - 5-12D
HVAC Hydronics & Backflow - 5-13
HVAC Hydronics & Backflow - 5-14
HVAC Hydronics & Backflow - 5-15
HVAC Hydronics & Backflow - 5-16
HVAC Hydronics & Backflow - 5-17
HVAC Hydronics & Backflow - 5-18
HVAC Hydronics & Backflow - 5-19
HVAC Hydronics & Backflow - 5-20
HVAC Hydronics & Backflow - 5-21
HVAC Hydronics & Backflow - 5-22
HVAC Hydronics & Backflow - 5-22A
HVAC Hydronics & Backflow - 5-22B
HVAC Hydronics & Backflow - 5-23
HVAC Hydronics & Backflow - 5-24
HVAC Hydronics & Backflow - 5-24A
HVAC Hydronics & Backflow - 5-24B
HVAC Hydronics & Backflow - 5-25
HVAC Hydronics & Backflow - 5-26
HVAC Hydronics & Backflow - 5-26A
HVAC Hydronics & Backflow - 5-26B
HVAC Hydronics & Backflow - 5-27
HVAC Hydronics & Backflow - 5-28
HVAC Hydronics & Backflow - 5-29
HVAC Hydronics & Backflow - 5-30
HVAC Hydronics & Backflow - 5-31
HVAC Hydronics & Backflow - 5-32
HVAC Hydronics & Backflow - 5-33
HVAC Hydronics & Backflow - 5-34
HVAC Hydronics & Backflow - 5-34A
HVAC Hydronics & Backflow - 5-34B
HVAC Hydronics & Backflow - 5-34C
HVAC Hydronics & Backflow - 5-34D
HVAC Hydronics & Backflow - 5-34E
HVAC Hydronics & Backflow - 5-34F
HVAC Hydronics & Backflow - 5-35
HVAC Hydronics & Backflow - 5-36
HVAC Hydronics & Backflow - 5-37
HVAC Hydronics & Backflow - 5-38
HVAC Hydronics & Backflow - 5-39
HVAC Hydronics & Backflow - 5-40
HVAC Hydronics & Backflow - 5-41
HVAC Hydronics & Backflow - 5-42
HVAC Hydronics & Backflow - 5-43
HVAC Hydronics & Backflow - 5-44
HVAC Hydronics & Backflow - 5-45
HVAC Hydronics & Backflow - 5-46
HVAC Hydronics & Backflow - 5-47
HVAC Hydronics & Backflow - 5-48
HVAC Hydronics & Backflow - 5-49
HVAC Hydronics & Backflow - 5-50
HVAC Hydronics & Backflow - 5-51
HVAC Hydronics & Backflow - 5-52
HVAC Hydronics & Backflow - 5-53
HVAC Hydronics & Backflow - 5-54
HVAC Hydronics & Backflow - 5-55
HVAC Hydronics & Backflow - 5-56
HVAC Hydronics & Backflow - 5-57
HVAC Hydronics & Backflow - 5-58
HVAC Hydronics & Backflow - 5-59
HVAC Hydronics & Backflow - 5-60
HVAC Hydronics & Backflow - 5-61
HVAC Hydronics & Backflow - 5-62
HVAC Hydronics & Backflow - 5-63
HVAC Hydronics & Backflow - 5-64
HVAC Hydronics & Backflow - 5-65
HVAC Hydronics & Backflow - 5-66
HVAC Hydronics & Backflow - 5-66A
HVAC Hydronics & Backflow - 5-66B
HVAC Hydronics & Backflow - 5-66C
HVAC Hydronics & Backflow - 5-66D
HVAC Hydronics & Backflow - 5-66E
HVAC Hydronics & Backflow - 5-66F
HVAC Hydronics & Backflow - 5-66G
HVAC Hydronics & Backflow - 5-67
HVAC Hydronics & Backflow - 5-68
HVAC Hydronics & Backflow - 5-69
HVAC Hydronics & Backflow - 5-70
HVAC Hydronics & Backflow - 5-71
HVAC Hydronics & Backflow - 5-72
HVAC Hydronics & Backflow - 5-73
HVAC Hydronics & Backflow - 5-74
HVAC Hydronics & Backflow - 5-75
HVAC Hydronics & Backflow - 5-76
HVAC Hydronics & Backflow - 5-77
HVAC Hydronics & Backflow - 5-78
HVAC Hydronics & Backflow - 5-79
HVAC Hydronics & Backflow - 5-80
HVAC Hydronics & Backflow - 5-81
HVAC Hydronics & Backflow - 5-82
HVAC Hydronics & Backflow - 5-83
HVAC Hydronics & Backflow - 5-84
HVAC Hydronics & Backflow - 5-85
HVAC Hydronics & Backflow - 5-86
HVAC Hydronics & Backflow - 5-87
HVAC Hydronics & Backflow - 5-88
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section1
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section2
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section3
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section4
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section5
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section6
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section7
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section8
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section9
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section10
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section11
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section12
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section13
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section14
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section15
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section16
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section17
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section18
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section19
https://www.nxtbook.com/nxtbooks/marksplumbing/edition_h_section20
https://www.nxtbookmedia.com