Diyak Ltd.’s Wireline Retrievable Injection Pressure Operated Gas Lift Valves are manufactured to meet the requirements of API 11V1. The WLR IPO Gas Lift Valves are primarily controlled by injection gas pressure. The valve, when installed in the side pocket mandrels is used to control gas pressure and its flow from either the annulus or tubing based on the porting of mandrel used.
The valve is designed with a sealed chamber, including a three-ply bellow assembly that contains a nitrogen pre-charge, which provides the closing force of the valve. When injection gas pressure exceeds the closing force, the bellows compress thus lifting a valve stem off a seat and allowing gas to be injected through the valve.
These valves are available in either Stainless Steel or Nickel alloys for corrosion resistance in wells with high concentrations of H2S or CO2. Packing and elastomeric materials for the valve are available for standard service or special service to suit individual well conditions.
Please refer to our SPARES FOR GASLIFT VALVES for more details on spares available for Gas Lift Valve repair and maintenance.
FEATURES & BENIFITS:
Our WLR IPO Gas Lift Valves are available in Stainless steel or premium materials.
The Gas Lift Valves use Three-ply Monel® 400 bellows.
The Bellows connections are Silver Brazed.
Mechanical stop feature prevents the bellows overstroke.
A viscous Silicone based fluid is used to create a fluid shear which dampens the bellows preventing damage to it as well as preventing pounding of the stem to the seat.
Tungsten carbide balls ensure long lasting operation.
The replaceable floating Monel® 400 seats. Tungsten Carbide seats are available upon request.
The integral reverse flow check valve prevents reverse flow communication.
Check valve has combination resilient and metal-to-metal seal.
Pressure rating up to 1,800 psi (124 bars) test rack open.
Temperature rating of 250°F (121°C) (Standard Service)
Special Fibre reinforced Neoprene packings ensure reliable lasting performance.
Compatible with other manufacturers of side pocket mandrels.
SPECIFICATIONS TABLE:
|
Valve OD |
Ab Effective Bellows Area |
Port Size |
Ap1 Area of Port Size |
Ap / Ab Ratio |
1-(Ap/Ab) |
||||
| In | mm. | In | mm. | In | mm. | In | mm. | ||
| 1.0 | 25.4 | 0.31 | 200.0 | 1/8 | 3.18 | 0.013 | 8.40 | 0.042 | 0.958 |
| 5/32 | 3.97 | 0.021 | 13.55 | 0.067 | 0.933 | ||||
| 3/16 | 4.76 | 0.029 | 18.71 | 0.095 | 0.905 | ||||
| 1/4 | 6.35 | 0.052 | 33.55 | 0.166 | 0.834 | ||||
| 5/16 | 7.94 | 0.080 | 51.61 | 0.257 | 0.743 | ||||
| 3/8 | 9.53 | 0.114 | 73.55 | 0.368 | 0.632 | ||||
| 1.50 | 38.10 | 0.77 | 496.80 | 3/16 | 4.76 | 0.029 | 18.71 | 0.038 | 0.962 |
| 1/4 | 6.35 | 0.052 | 33.55 | 0.067 | 0.933 | ||||
| 5/16 | 7.94 | 0.080 | 51.61 | 0.104 | 0.896 | ||||
| 3/8 | 9.53 | 0.114 | 73.55 | 0.148 | 0.800 | ||||
| 7/16 | 11.11 | 0.154 | 99.35 | 0.200 | 0.739 | ||||
MONEL® is a trademark of Special Metals Corporation.