Term
| PSV Tolerance @ 70 psi or lower |
|
Definition
|
|
Term
PSH Set Point - Pressure Component
|
|
Definition
Primary: HOP(.15) = ? → HOP + ? = PSH or HOP + 5 = PSH
(+ 15% or + 5 PSI (whichever is > from HOP))
Secondary: PSV(.05) = ? → PSV + ? = PSH
(- 5% or - 5 psi (whichever is > below PSV))
Use the Smallest # of Primary & Secondary |
|
|
Term
| PSV Tolerance above 70 psi |
|
Definition
| = + or - 3% psi of PSV Set Pressure |
|
|
Term
|
Definition
| described as the range from where the Pressure Sensor (Pilot) trips out-of-service to where it is able reset itself or return to normal service. |
|
|
Term
|
Definition
| Closure of the SSV shall not exceed _____ seconds after an ESD is activated |
|
|
Term
|
Definition
| SCSSVs are required to close within _____ minutes after the SSV closes |
|
|
Term
|
Definition
| A BDV (Blowdown Valve) is required on the discharge line of compressor installations of _____ horsepower or greater. |
|
|
Term
|
Definition
| Exhaust piping from Diesel Engines shall be equipped with |
|
|
Term
| PSH/PSL - Set Point or Test Tolerance |
|
Definition
+ or - 5% or 5 psi
(use # further from PSV)
Ex: PSV = 1440
→ 1440 - 5% = 1368
→ 1440-5 = 1435 |
|
|
Term
|
Definition
LOP ≥ 34 psi: → LOP * 0.15 = ? → LOP - ? = PSL
or
LOP < 34 psi: → LOP - 5 psi = PSL
(use # furthest from LOP) |
|
|
Term
3 Calculations: PSH & PSL Settings
GIVEN: MAWP and HOP & LOP ≥ 34 psi: |
|
Definition
1. HOP(0.15) = ? so HOP + ? = ?
2. PSV(0.05) = ? → PSV - ? = ?
(TAKE SMALLER # OF 1 & 2 FOR PSH)
3. LOP(0.15) = ? → LOP - ? = PSL |
|
|
Term
| 60 % & will Shut-In Platform |
|
Definition
| ASH Set Point @ high level LEL = |
|
|
Term
| 25% & will sound an alarm |
|
Definition
| ASH Set Point @ low level LEL = |
|
|
Term
|
Definition
OSH (H2S) Set Point Tolerance should not vary from test gas concentrations
|
|
|
