Control Valve Inspection and Test Plan
This article provides you with a template for control valve inspection and test plan. This control valve ITP is a draft and must be edited based on your purchase order specifications.
| Control valve Inspection and Test Plan Task | Vendor | TPI Inspection | Client |
|---|---|---|---|
| Control valve Material and Actuator Test Certificate | H | H | R |
| Control valve Checking of characteristics including the following items as minimum: 1) Body, seat, stem, packing, accessories and actuator, 2) Check of material certificates for boday, trim, seat, plug, disc or ball, bolting, gasket/packing | H | H | R |
| Control valve Non-destructive examination, when specified | H | R | R |
| Control valve Pressure test of body (Note: Witness for body class 300 and larger) | H | W | R |
| Control valve Pneumatic test, when specified | H | W | R |
| Control valve Seat leakage test | H | S | R |
| Control valve Calibration test | H | S | R |
| Control valve Performance/function test | H | H | R |
| Control valve Stroke test | H | H | R |
| Control valve Air failure test | H | W | R |
| Control valve Linearity check | H | R | R |
| Control valve Response and stabilization time and hysteresis | H | W | R |
| Control valve Insulation resistance test | H | W | R |
| Control valve Final visual / Dimension Inspection | H | H | R |
| Control valve Documentation review prior to release(Final activity of Technical Inspection) | H | H | R |
| Control valve Pre-shipment Inspection | H | H | R |
Control Valve Inspection and Test Plan - Points
H: Hold Point implies that relevant production activities shall not proceed until the continuation of work is permitted by Purchaser. (Notification req'd)
W: Witness point implies that Purchaser intends to witness the designated inspection feature. If Purchaser decides not to witness the relevant feature, production can proceed without permission of Purchaser. (Notification req'd)
S: Witness, but spot check basis. Initial operation will be witness point and subsequent operation will be witnessed at discretion of Purchaser considering the results of previous inspection. (Notification not req'd : Randam Inspection)
R: Review inspection & test records (Notification not req'd)