User Guide
31
MAINTENANCE MANUAL MODELS 825Y, 825YA, 825, 825D, 825YD & 826YD
MAINTENANCE MANUAL MODELS 825Y, 825YA, 825, 825D, 825YD & 826YD
Commercial Parts for Refief Valve - Model 825 & 825 D (1
1
/2–10")
  Item DESC. Material SIZE SIZE  SIZE  SIZE SIZE SIZE SIZE  SIZE
 No.      1
1
⁄2" 2"  2
1
⁄2"  3" 4" 6" 8"  10"
  25/  Bolt &  ST STL 
3
⁄8-16 x 2
1
⁄2 
3
⁄8-16 x 2
1
⁄2 
3
⁄8-16 x 2
3
⁄4 
3
⁄8-16 x 2
3
⁄4 
3
⁄8-16 x 2
3
⁄4 
3
⁄8-16 x 2
3
⁄4 
3
⁄8-16 x 2
3
⁄4 
3
⁄8-16 x 2
3
⁄4
 25A  Nut  (8) (8)  (8)  (8) (8) (8) (8)  (8)
 39 O-ring BUNA-N 568-214  568-222  568-222  568-222 568-330 568-330 568-330  568-330
        1 x 1
1
⁄4 x 
1
⁄8 1
1
⁄2 x 1
3
⁄4 x 
1
⁄8 1
1
⁄2 x 1
3
⁄4 x 
1
⁄8 1
1
⁄2 x 1
3
⁄4 x 
1
⁄8 2
1
⁄8 x 2
1
⁄2 x 
3
⁄16 2
1
⁄8 x 2
1
⁄2 x 
3
⁄16 2
1
⁄8 x 2
1
⁄8 x 
3
⁄16 2
1
⁄8 x 2
1
⁄2 x 
3
⁄16
  48  Cap  ST STL  10-32 x 
1
⁄2 10-32 x 
1
⁄2 10-32 x 
1
⁄2 10-32 x 
1
⁄2 10-32 x 
1
⁄2 10-32 x 
1
⁄2 10-32 x 
1
⁄2 10-32 x 
1
⁄2
    Screw    Socket Head  Socket Head  Socket Head  Socket Head  Socket Head  Socket Head  Socket Head  Socket Head
    (8) (8)  (8)  (8) (8) (8) (8)  (8)
Commercial Parts for Main Valve - Model 825 (1
1
/2–10")
 Item DESC. Material SIZE SIZE  SIZE  SIZE SIZE SIZE SIZE  SIZE
 No.      1
1
⁄2" 2"  2
1
⁄2" 3" 4" 6" 8" 10"
 2B Bushing ST STL 
7
⁄16-20 Hex 
9
⁄16-18 Hex 
9
⁄16-18 Hex* 
9
⁄16-18 Hex* 
7
⁄8-14 Jam* 
7
⁄8-14 Jam*   
   Nut  (2) (2)  (2)  (2) (2) (2)   
 7A  Screw  ST STL         
3
⁄8-16 x 1 
3
⁄8-16 x 1 
3
⁄8-16 x 1 
3
⁄8-16 x 1
              (2)  (2)v  (2)  (2)
 12 O-ring BUNA-N 568-228 568-231  568-238  568-246 568-254 568-264 568-273  10
5
⁄16 x
      2
1
⁄4 x 2
1
⁄2 x 
1
⁄8 2
5
⁄8 x 2
7
⁄8 x 
1
⁄8 3
1
⁄2 x 3
3
⁄4 x 
1
⁄8 4
1
⁄2 x 4
3
⁄4 x 
1
⁄8 5
1
⁄2 x 5
3
⁄4 x 
1
⁄8 7
1
⁄2 x 7
3
⁄4 x 
1
⁄8 9
3
⁄4 x 10 x 
1
⁄8 10
9
⁄16 x 
1
⁄8
    (2) (2)  (2)  (2) (2) (2) (2)  (2)
 13  Cap-  ST STL 
1
⁄2-13 x 1
1
⁄4 
3
⁄8-16 x 
7
⁄8 
7
⁄16-14 x 1 
7
⁄16-14 x 1 
1
⁄2-13 x 1
1
⁄4 
5
⁄8-11 x 1
1
⁄2 
3
⁄4-10 x 1
1
⁄2 
3
⁄4-10 x 1
3
⁄4
  Screw    (8)  (12)  (16)  (16)  (16)  (16)  (16)  (24)
 14 O-ring BUNA-N 568-234 568-240  568-244  568-252 568-263 568-272 568-451 
        3 x 3
1
⁄4 x 
1
⁄8 3
3
⁄4 x 4 x 
1
⁄8 4
1
⁄4 x 4
1
⁄2 x 
1
⁄8 5
1
⁄4 x 5
1
⁄2 x 
1
⁄8 7
1
⁄4 x 7
1
⁄2 x 
1
⁄8 9
1
⁄2 x 9
3
⁄4 x 
1
⁄8  11 x 11
1
⁄2 x 
1
⁄4 12
3
⁄4 x 13 x 
1
⁄8
    (2) (2)  (2)  (2) (2) (2) (2)  (2)
 15 Lock-Nut ST STL 
3
⁄8-24 
1
⁄24-20 
1
⁄2-20 
1
⁄2-20 
3
⁄4-16 
3
⁄4-16 
7
⁄8-14 
7
⁄8-14
    (15) (15)  (15)  (15) (15) (15) (15)  (15)
 17  Bolt &  STEEL 
1
⁄2-13 x 1
3
⁄4 
5
⁄8-11 x 2 
5
⁄8-11 x 2
1
⁄4 
5
⁄8-11 x 2
1
⁄2 
5
⁄8-11 x 2
3
⁄4 
3
⁄4-10 x 3 
3
⁄4-10 x 3
1
⁄4 
7
⁄8-9 x 3
1
⁄2
  Nut  (12) (12)  (12)  (12) (24) (24) (24)  (36)
 40  Test  BRASS 
1
⁄4" IPS 
1
⁄4" IPS 
1
⁄2" IPS 
1
⁄2" IPS 
1
⁄2" IPS 
3
⁄4" IPS 
3
⁄4" IPS 
3
⁄4" IPS
  Cocks  (4) (4)  (4)  (4) (4) (4) (4)  (4)
 51  O-ring  BUNA-N      568-014  568-014  568-116  568-116  568-118  568-118
1
⁄2 x 
5
⁄8 x 
1
⁄16 
1
⁄2 x 
5
⁄8 x 
1
⁄16 
3
⁄4 x 1
5
⁄16 x 
3
⁄32 
3
⁄4 x 1
5
⁄16 x 
3
⁄32 
7
⁄8 x 1
1
⁄16 x 
3
⁄32 
7
⁄8 x 1
1
⁄16 x 
3
⁄32
These parts are commercially available through most hardware distributors or retailers. Gate valves, testcocks, flange gaskets, etc., are also commercially available, but not listed.
*  Denotes parts only used on valves manufactured prior to 1981.










