Enovate Systems Ltd. designs, develops, qualifies and manufactures solutions for the well completion and intervention sector and provides related services.

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Well isolation Flapper valve

CORE TECHNOLOGY
Patented En-Ter Flapper Bi-Directional Sealing Technology

FUNCTION
Well Isolation, Pressure Testing Surface Control Equipment

ENVIRONMENT
Subsea

SYSTEM
In-Riser, Open Water

Well isolation flapper valve providing bi-directional sealing

Deployed as:

  • Retainer Valve
  • Lubricator Valve

The En-Ter combines the operational flexibility of a ball valve and the sealing performance and integrity of a flapper valve. En-Ter locks the flapper valve onto the seat using a hydraulically operated lower mandrel providing bi-directional sealing for superior reliability and integrity.

Features

  • Flapper locking system to ensure bi-directional sealing
  • Dropped object protection equivalent to 147kJ
  • Combines operational flexibility associated with a ball valve and the sealing performance and integrity of a flapper valve
  • Chemical injection facility below the valve via a dual protected non return valve
  • High debris tolerance
  • Pump through achieved by differential pressure from above used to unseat the valve, allowing communication
  • Through porting
  • 2-3/4in (70mm) umbilical slot
Dimensions OD x L
18.625in x 67.175in
Bore Diameter
7-3/8in
Weight (dry)
3,915kg
Operating Temperature
-5°C to +121°C
Maximum Working Pressure
10,000psig
Open Port
3000psi
Closed Port
10000psi
Applicable Standards
API 6A (ISO 10423)
API 14A (ISO 10423)
API 17G (ISO 13628-7)
NACE MR 0175 (ISO 15156)