INJECTION PRESSURE OPERATED GAS LIFT VALVES

WP SERIES GAS LIFT VALVES
The OPTI-FLOW WP Series gas lift valves are retrievable, injection pressure operated valves with a nitrogen charged dome and bellows configuration. Since the charge pressure above the bellows is affected by temperature, it is important to use accurate operating depth temperature information when calculating the set pressure. The nitrogen dome pressure is preset at a reference temperature and corrected to an operating depth temperature for the desired application. The valve is held on seat by the downward force of the nitrogen charge inside the bellows.

WP Valve Series
  • The WP-1 model is a 1” 0.D. valve
  • The WP-1.5 model is 1-1/2” 0.D. valve

Applications:
For intermittent or continuous gas lift, and tubing or casing flow applications depending on pocket porting configurations.

Features:
  • Maximum travel stop increases the cycle life of the bellows
  • Integral reverse flow check valve to prevent tubing-to-casing communication
  • Three-ply Monel® bellows
  • Compatible with all common top latches
  • Silicon dampening fluid minimizes throttling effects
  • Replaceable floating Monel® or tungsten carbide seat
  • Silver-brazed bellows connections
  • Guidance system designed to prevent corkscrew of the bellows
  • Stainless steel or Monel® materials available
  • Pressure rating up to 1800 psi Ptro maximum
  • Temperature rating of 250º F (standard service)
  • Port sizes from 1/8”to 1/2”
  • Standard Nitrile® packing element system with other packing materials available
  • Double 0-ring tail plug design for enhanced sealing integrity (WP-J Series)

WP  SERIES SPECIFICATION GUIDE

Valve
Series
Model

Ab
Effective
Bellows Area
(sq.in.)

Port
Size
(in.)

Ap*
Area
Of Port
(sq. in.)

Ap/Ab
Ratio

1-(Ap/Ab)

PPEF
Ap/Ab
1-(Ap/Ab)

 

WP-1

0.31
0.31
0.31
0.31
0.31
0.31

1 / 8
5/32
3/16
1 / 4
5/16
3 / 8

0.014
0.021
0.029
0.052
0.080
0.114

0.044
0.067
0.095
0.166
0.257
0.368

0.956
0.933
0.905
0.834
0.743
0.632

0.046
0.072
0.105
0.199
0.346
0.582

 

WP-1.5

0.77
0.77
0.77
0.77
0.77
0.77

3/16
1 / 4
5/16
3 / 8
7/16
1 / 2

0.029
0.052
0.080
0.114
0.154
0.201

0.038
0.067
0.104
0.148
0.200
0.261

0.962
0.933
0.896
0.800
0.739
0.632

0.040
0.072
0.115
0.174
0.250
0.353

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