diff --git a/opm/material/fluidsystems/BlackOilFluidSystem.hpp b/opm/material/fluidsystems/BlackOilFluidSystem.hpp
index b1300aa3d..661054bdd 100644
--- a/opm/material/fluidsystems/BlackOilFluidSystem.hpp
+++ b/opm/material/fluidsystems/BlackOilFluidSystem.hpp
@@ -306,6 +306,19 @@ public:
     static void setWaterPvt(std::shared_ptr<WaterPvt> pvtObj)
     { waterPvt_ = pvtObj; }
 
+    static void setVapPars(const Scalar par1, const Scalar par2)
+    {
+        if (gasPvt_) {
+            gasPvt_->setVapPars(par1, par2);
+        }
+        if (oilPvt_) {
+            oilPvt_->setVapPars(par1, par2);
+        }
+        if (waterPvt_) {
+            waterPvt_->setVapPars(par1, par2);
+        }
+    }
+
     /*!
      * \brief Initialize the values of the reference densities
      *
diff --git a/opm/material/fluidsystems/blackoilpvt/BrineCo2Pvt.hpp b/opm/material/fluidsystems/blackoilpvt/BrineCo2Pvt.hpp
index 41f071e38..9c4f94b23 100644
--- a/opm/material/fluidsystems/blackoilpvt/BrineCo2Pvt.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/BrineCo2Pvt.hpp
@@ -104,6 +104,9 @@ public:
         salinity_.resize(numRegions);
     }
 
+    void setVapPars(const Scalar, const Scalar)
+    {
+    }
 
     /*!
      * \brief Initialize the reference densities of all fluids for a given PVT region
diff --git a/opm/material/fluidsystems/blackoilpvt/BrineH2Pvt.hpp b/opm/material/fluidsystems/blackoilpvt/BrineH2Pvt.hpp
index 321ca5e47..c458e2449 100644
--- a/opm/material/fluidsystems/blackoilpvt/BrineH2Pvt.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/BrineH2Pvt.hpp
@@ -92,6 +92,10 @@ public:
         salinity_.resize(numRegions);
     }
 
+    void setVapPars(const Scalar, const Scalar)
+    {
+    }
+
     /*!
     * \brief Initialize the reference densities of all fluids for a given PVT region
     */
diff --git a/opm/material/fluidsystems/blackoilpvt/Co2GasPvt.hpp b/opm/material/fluidsystems/blackoilpvt/Co2GasPvt.hpp
index dbe1196aa..ccd3b8844 100644
--- a/opm/material/fluidsystems/blackoilpvt/Co2GasPvt.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/Co2GasPvt.hpp
@@ -88,6 +88,9 @@ public:
         salinity_.resize(numRegions);
     }
 
+    void setVapPars(const Scalar, const Scalar)
+    {
+    }
 
     /*!
      * \brief Initialize the reference densities of all fluids for a given PVT region
diff --git a/opm/material/fluidsystems/blackoilpvt/ConstantCompressibilityBrinePvt.hpp b/opm/material/fluidsystems/blackoilpvt/ConstantCompressibilityBrinePvt.hpp
index 8171c3386..ed4ff5935 100644
--- a/opm/material/fluidsystems/blackoilpvt/ConstantCompressibilityBrinePvt.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/ConstantCompressibilityBrinePvt.hpp
@@ -68,6 +68,10 @@ public:
         }
     }
 
+    void setVapPars(const Scalar, const Scalar)
+    {
+    }
+
     /*!
      * \brief Set the water reference density [kg / m^3]
      */
diff --git a/opm/material/fluidsystems/blackoilpvt/ConstantCompressibilityOilPvt.hpp b/opm/material/fluidsystems/blackoilpvt/ConstantCompressibilityOilPvt.hpp
index 9c4a23ab9..3d4be2368 100644
--- a/opm/material/fluidsystems/blackoilpvt/ConstantCompressibilityOilPvt.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/ConstantCompressibilityOilPvt.hpp
@@ -71,6 +71,10 @@ public:
         }
     }
 
+    void setVapPars(const Scalar, const Scalar)
+    {
+    }
+
     /*!
      * \brief Initialize the reference densities of all fluids for a given PVT region
      */
diff --git a/opm/material/fluidsystems/blackoilpvt/ConstantCompressibilityWaterPvt.hpp b/opm/material/fluidsystems/blackoilpvt/ConstantCompressibilityWaterPvt.hpp
index 48911539e..a3cad3388 100644
--- a/opm/material/fluidsystems/blackoilpvt/ConstantCompressibilityWaterPvt.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/ConstantCompressibilityWaterPvt.hpp
@@ -70,6 +70,10 @@ public:
         }
     }
 
+    void setVapPars(const Scalar, const Scalar)
+    {
+    }
+
     /*!
      * \brief Set the water reference density [kg / m^3]
      */
diff --git a/opm/material/fluidsystems/blackoilpvt/DeadOilPvt.hpp b/opm/material/fluidsystems/blackoilpvt/DeadOilPvt.hpp
index 331391194..8ea7dc3f9 100644
--- a/opm/material/fluidsystems/blackoilpvt/DeadOilPvt.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/DeadOilPvt.hpp
@@ -55,6 +55,10 @@ public:
 
     void setNumRegions(size_t numRegions);
 
+    void setVapPars(const Scalar, const Scalar)
+    {
+    }
+
     /*!
      * \brief Initialize the reference densities of all fluids for a given PVT region
      */
diff --git a/opm/material/fluidsystems/blackoilpvt/DryGasPvt.hpp b/opm/material/fluidsystems/blackoilpvt/DryGasPvt.hpp
index 3ca8a5ae1..103f28808 100644
--- a/opm/material/fluidsystems/blackoilpvt/DryGasPvt.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/DryGasPvt.hpp
@@ -63,6 +63,10 @@ public:
 
     void setNumRegions(size_t numRegions);
 
+    void setVapPars(const Scalar, const Scalar)
+    {
+    }
+
     /*!
      * \brief Initialize the reference densities of all fluids for a given PVT region
      */
diff --git a/opm/material/fluidsystems/blackoilpvt/DryHumidGasPvt.hpp b/opm/material/fluidsystems/blackoilpvt/DryHumidGasPvt.hpp
index 1ba8d3fe9..6eaa8e2a4 100644
--- a/opm/material/fluidsystems/blackoilpvt/DryHumidGasPvt.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/DryHumidGasPvt.hpp
@@ -74,6 +74,11 @@ public:
 
     void setNumRegions(size_t numRegions);
 
+    void setVapPars(const Scalar par1, const Scalar)
+    {
+        vapPar1_ = par1;
+    }
+
     /*!
      * \brief Initialize the reference densities of all fluids for a given PVT region
      */
diff --git a/opm/material/fluidsystems/blackoilpvt/GasPvtMultiplexer.hpp b/opm/material/fluidsystems/blackoilpvt/GasPvtMultiplexer.hpp
index ffe30b50a..af9297026 100644
--- a/opm/material/fluidsystems/blackoilpvt/GasPvtMultiplexer.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/GasPvtMultiplexer.hpp
@@ -216,6 +216,11 @@ public:
     unsigned numRegions() const
     { OPM_GAS_PVT_MULTIPLEXER_CALL(return pvtImpl.numRegions()); return 1; }
 
+    void setVapPars(const Scalar par1, const Scalar par2)
+    {
+        OPM_GAS_PVT_MULTIPLEXER_CALL(pvtImpl.setVapPars(par1, par2));
+    }
+
     /*!
      * \brief Return the reference density which are considered by this PVT-object.
      */
diff --git a/opm/material/fluidsystems/blackoilpvt/GasPvtThermal.hpp b/opm/material/fluidsystems/blackoilpvt/GasPvtThermal.hpp
index 94261b329..ad54e2d0f 100644
--- a/opm/material/fluidsystems/blackoilpvt/GasPvtThermal.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/GasPvtThermal.hpp
@@ -121,6 +121,11 @@ public:
         rhoRefO_.resize(numRegions);
     }
 
+    void setVapPars(const Scalar par1, const Scalar par2)
+    {
+        isothermalPvt_->setVapPars(par1, par2);
+    }
+
     /*!
      * \brief Finish initializing the thermal part of the gas phase PVT properties.
      */
diff --git a/opm/material/fluidsystems/blackoilpvt/H2GasPvt.hpp b/opm/material/fluidsystems/blackoilpvt/H2GasPvt.hpp
index 3c770a249..e27caebda 100644
--- a/opm/material/fluidsystems/blackoilpvt/H2GasPvt.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/H2GasPvt.hpp
@@ -79,6 +79,10 @@ public:
         gasReferenceDensity_.resize(numRegions);
     }
 
+    void setVapPars(const Scalar, const Scalar)
+    {
+    }
+
 
     /*!
     * \brief Initialize the reference densities of all fluids for a given PVT region
@@ -228,4 +232,4 @@ private:
 
 }  // end namspace Opm
 
-#endif
\ No newline at end of file
+#endif
diff --git a/opm/material/fluidsystems/blackoilpvt/LiveOilPvt.hpp b/opm/material/fluidsystems/blackoilpvt/LiveOilPvt.hpp
index fcf5ca12f..5473d5e3c 100644
--- a/opm/material/fluidsystems/blackoilpvt/LiveOilPvt.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/LiveOilPvt.hpp
@@ -72,6 +72,11 @@ public:
 
     void setNumRegions(size_t numRegions);
 
+    void setVapPars(const Scalar, const Scalar par2)
+    {
+        vapPar2_ = par2;
+    }
+
     /*!
      * \brief Initialize the reference densities of all fluids for a given PVT region
      */
diff --git a/opm/material/fluidsystems/blackoilpvt/OilPvtMultiplexer.hpp b/opm/material/fluidsystems/blackoilpvt/OilPvtMultiplexer.hpp
index b2ad16483..adc9988b9 100644
--- a/opm/material/fluidsystems/blackoilpvt/OilPvtMultiplexer.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/OilPvtMultiplexer.hpp
@@ -170,6 +170,11 @@ public:
     unsigned numRegions() const
     { OPM_OIL_PVT_MULTIPLEXER_CALL(return pvtImpl.numRegions()); return 1; }
 
+    void setVapPars(const Scalar par1, const Scalar par2)
+    {
+        OPM_OIL_PVT_MULTIPLEXER_CALL(pvtImpl.setVapPars(par1, par2));
+    }
+
     /*!
      * \brief Return the reference density which are considered by this PVT-object.
      */
diff --git a/opm/material/fluidsystems/blackoilpvt/OilPvtThermal.hpp b/opm/material/fluidsystems/blackoilpvt/OilPvtThermal.hpp
index 4434469db..13a17616c 100644
--- a/opm/material/fluidsystems/blackoilpvt/OilPvtThermal.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/OilPvtThermal.hpp
@@ -124,6 +124,11 @@ public:
         rhoRefG_.resize(numRegions);
     }
 
+    void setVapPars(const Scalar par1, const Scalar par2)
+    {
+        isothermalPvt_->setVapPars(par1, par2);
+    }
+
     /*!
      * \brief Finish initializing the thermal part of the oil phase PVT properties.
      */
diff --git a/opm/material/fluidsystems/blackoilpvt/SolventPvt.hpp b/opm/material/fluidsystems/blackoilpvt/SolventPvt.hpp
index fa7b1aea3..bb7adb609 100644
--- a/opm/material/fluidsystems/blackoilpvt/SolventPvt.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/SolventPvt.hpp
@@ -61,6 +61,10 @@ public:
 
     void setNumRegions(size_t numRegions);
 
+    void setVapPars(const Scalar, const Scalar)
+    {
+    }
+
     /*!
      * \brief Initialize the reference density of the solvent gas for a given PVT region
      */
diff --git a/opm/material/fluidsystems/blackoilpvt/WaterPvtMultiplexer.hpp b/opm/material/fluidsystems/blackoilpvt/WaterPvtMultiplexer.hpp
index 443f476b0..6c57f0dce 100644
--- a/opm/material/fluidsystems/blackoilpvt/WaterPvtMultiplexer.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/WaterPvtMultiplexer.hpp
@@ -150,6 +150,11 @@ public:
     unsigned numRegions() const
     { OPM_WATER_PVT_MULTIPLEXER_CALL(return pvtImpl.numRegions()); return 1; }
 
+    void setVapPars(const Scalar par1, const Scalar par2)
+    {
+        OPM_WATER_PVT_MULTIPLEXER_CALL(pvtImpl.setVapPars(par1, par2));
+    }
+
     /*!
      * \brief Return the reference density which are considered by this PVT-object.
      */
diff --git a/opm/material/fluidsystems/blackoilpvt/WaterPvtThermal.hpp b/opm/material/fluidsystems/blackoilpvt/WaterPvtThermal.hpp
index 31bd742c4..fd8b956e7 100644
--- a/opm/material/fluidsystems/blackoilpvt/WaterPvtThermal.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/WaterPvtThermal.hpp
@@ -132,6 +132,11 @@ public:
         internalEnergyCurves_.resize(numRegions);
     }
 
+    void setVapPars(const Scalar par1, const Scalar par2)
+    {
+        isothermalPvt_->setVapPars(par1, par2);
+    }
+
     /*!
      * \brief Finish initializing the thermal part of the water phase PVT properties.
      */
diff --git a/opm/material/fluidsystems/blackoilpvt/WetGasPvt.hpp b/opm/material/fluidsystems/blackoilpvt/WetGasPvt.hpp
index b17f8149e..1074840b9 100644
--- a/opm/material/fluidsystems/blackoilpvt/WetGasPvt.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/WetGasPvt.hpp
@@ -74,6 +74,11 @@ public:
 
     void setNumRegions(size_t numRegions);
 
+    void setVapPars(const Scalar par1, const Scalar)
+    {
+        vapPar1_ = par1;
+    }
+
     /*!
      * \brief Initialize the reference densities of all fluids for a given PVT region
      */
diff --git a/opm/material/fluidsystems/blackoilpvt/WetHumidGasPvt.hpp b/opm/material/fluidsystems/blackoilpvt/WetHumidGasPvt.hpp
index e16cf4013..b712e9854 100644
--- a/opm/material/fluidsystems/blackoilpvt/WetHumidGasPvt.hpp
+++ b/opm/material/fluidsystems/blackoilpvt/WetHumidGasPvt.hpp
@@ -79,6 +79,11 @@ public:
 
     void setNumRegions(size_t numRegions);
 
+    void setVapPars(const Scalar par1, const Scalar)
+    {
+        vapPar1_ = par1;
+    }
+
     /*!
      * \brief Initialize the reference densities of all fluids for a given PVT region
      */