Baker Hughes Safety Relief Valve 19000 Series

Replace adjusting screw if: 1. Threads are torn, stripped or galled.

2. The bearing surfaces are galled, pitted or scratched.

3. The adjustment flats are damaged or rounded.;

The backup plate O-ring should always be replaced. The material and durometer of the backup plate O-ring should be the same material and durometer as that specified for the seat O-ring (37).

The base should be replaced if: 1. Seat surface

a. Metal seated-seat surface “N” (see Figure 11), is scratched, nicked, corroded, leaks or is too wide and cannot be machined (see Table 2 and Section XIII. A3.2.b).

b. O-ring seat surface “N” (see insert, Figure 11), is scratched, nicked, corroded or leaks.

2. Threads (all) are torn, stripped or galled.

3. Guide seating surface “U” is scratched, nicked, corroded or dimension “L” is less than “L” minimum (see Figure 11, Tables 3 to 5, and Section XIII. A3.2.b).

4. Seat step “F” is at or above minimum listed in Table 5. “F” can be reestablished by machining as long as “L” stays within tolerance (see Section XIII. A3.2.b).;

The bottom bonnet should be replaced if: 1. Threads are stripped, torn or galled.

2. The guide seating surface is scratched, nicked, corroded or leaks.

3. The backup plate seating surface is scratched, nicked or corroded.

4. Condition is porous, corroded or distorted.;

The bonnet should be replaced if: 1. Threads are stripped, torn or galled.

2. The guide seating surface is scratched, nicked, corroded or leaks.

3. Condition is porous, corroded or distorted.;