Test Cap Wireline Pressure Control Equipment
Test Cap Wireline Pressure Control Equipment
Ⅰ. Introduction
The test cap sets are designed for testing pressure control equipment and consist of :a blanking
cap and collar for testing box connections and a test cap for testing pin connections. Blanking and
test caps come with bleed ports 1/2NPT.Blanking cap and collar sub-assemblies are also used on
wellhead adapter assemblies.
II. General Technical Parameters
OTIS Quick Union
| Bore | Work Pressure | Service | Connection | Seal Dia. |
| 2.5＂ | 5K 10K | Std H2S | 5＂-4ACME | 3.5＂ |
| 3＂ | 5K | H2S | 5＂-4ACME | 3.5＂ |
| 3＂ | 10K | Std | 5＂-4ACME | 3.5＂ |
| 3＂ | 10K | Std H2S | 5-3/4＂-4ACME | 4＂ |
| 2.5＂ | 15K | H2S | 5-3/4＂-4ACME | 4＂ |
| 4＂ | 5K 10K | Std | 6-1/2＂-4ACME | 4.75＂ |
| 3＂ | 15K | Std H2S | 7-1/2＂-4ACME | 5.5＂ |
| 5＂ | 5K | Std H2S | 8-1/4＂-4ACME | 6.188＂ |
| 4＂ | 10K | Std H2S | 8-3/8＂-4ACME | 5.25＂ |
| 5＂ | 5K 10K | Std H2S | 9＂-4ACME | 6.75＂ |
| 4＂ | 15K | Std H2S | 9-1/2＂-4ACME | 6.25＂ |
| 6.38＂ | 10K | Std H2S | 11-1/2＂-4ACME | 8.25＂ |
BOWEN Quick Union
| Bore | Work Pressure | Service | Connection | Seal Dia. |
| 2.5＂ | 5K 10K | Std H2S | 4-3/4＂-4ACME | 3.75＂ |
| 3＂ | 5K 10K | Std | 4-3/4＂-4ACME | 3.75＂ |
| 3＂ | 5K | H2S | 4-3/4＂-4ACME | 3.75＂ |
| 3＂ | 5K | Std H2S | 5-1/2＂-4ACME×2 | 4.375＂ |
| 3＂ | 10K | Std | 5-1/2＂-4ACME×2 | 4.375＂ |
| 2.5＂ | 15K | Std H2S | 6-5/16＂-4ACME | 4.375＂ |
| 3＂ | 10K | Std H2S | 6-5/16＂-4ACME | 4.375＂ |
| 3＂ | 15K | Std H2S | 7＂-5STUB ACME | 4.375＂ |
| 4＂ | 5K | H2S | 7＂-5STUB ACME | 4.375＂ |
| 4＂ | 10K | H2S | 8-1/4＂-4ACME×2 | 6.0＂ |
Ⅲ. Structure Features
The test cap mainly consists of a body, a nut, a plug, a circlip and an O-ring. The body is a joint capable
of withstanding high pressure. The joint is provided with an O-ring and an external union female joint.
Union nut is made of alloy steel with wrench hole, and can be screwed with hook wrench during installation.
Ⅳ. Use method
1. Align The test cap with the internal coupling head and screw on the union nut. Remove the plug and
connect the pressure line.
2. Use a hook wrench to tighten the union nut to start the pressure test.
Ⅳ.Maintenance
Thread and O-ring shall be coated with lubricating grease and stored with thread protector. If any damage
is found to the O-ring, it shall be replaced in time.
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