Buschjost Pressure actuated valves by external fluid

2/2-way valves G 1/4 to G 2 For neutral fluids with high particle contamination Externally actuated seat valves Seat valves Internal thread G 1/4 to G 2 resp. 1/4 NPT to 2 NPT Operating pressure 0.2 to 16 bar Pilot pressure (min. = operating pressure, max. 16 bar) G 1/4 - G 1/2   max. 6 bar higher than operating pressure 1/4 NPT - 1/2 NPT  max. 6 bar higher than operating pressure G 3/4 - G 2   max. 1 bar higher than operating pressure 3/4 NPT - G 2 NPT  max. 1 bar higher than operating pressure Description (standard valve) Type:   pressure actuated seat valve with diaphragm actuator Switching function:  normally closed with pilot pressure Flow direction:  determined Fluid temperature:   ¨C10 !aC up to max. +90 Ambient temperature:   ¨C10 !aC up to max. +60 Differential pressure:   0.2 bar required Mounting position:  as required Pilot fluid:   air max. +60 !aC 2 Viscosity:    up to 80 mm /s Material Body:   Brass (CW617N) Cover:   Brass (2.0402) Internal parts:  Brass, Stainless steel Seat seal:   NBR Main seali

2/2-way valves DN 15 to DN 50 For neutral gases and liquids Pressure actuated by external fluid Seat valves Internal threads G 1/2 to G 2 or 1/2 NPT to 2 NPT Operating pressure (see table) Description (standard valve) Switching function:   normally closed Flow direction:  determined Mounting position:  as required Process fluid characteristics / Valve material Fluid temperature:  ¨C10 !aC up to max. +180 Ambient temperature:  ¨C10 !aC up to max. + 60 Material body:  Dezincification brass (CW602N) Seat seal:  PTFE Internal parts:  Brass, Stainless steel Spindle sealing:  PTFE / FPM; self-adjustable Pilot fluid characzeristics / Actuator material Pilot connection:  G 1/4 resp. 1/4 NPT Pilot fluid:  neutral gases Fluid temperature:  max. +80 !a Actuator:   Body:  Stainless steel, Aluminium   Bottom: WEMA¨CKor coate Seat seals:  NBR Internal parts:  Coated steel FeaturesHigh flow rateSuitable for contaminated process fluidDamped closing (Valves closes against flow direction)For robust industry applicationsSuitable for vacuum up to max. 90 % Characteristic data Val

2/2-way valves DN 15 to DN 50 For neutral gases and liquids Pressure actuated by external fluid Seat valves Internal threads G 1/2 to G 2 or 1/2 NPT to 2 NPT Operating pressure (see table) Description (standard valve) Switching function:   normally closed Flow direction:  determined Mounting position:  as required Process fluid characteristics / Valve material Fluid temperature:  ¨C10 !aC up to max. +180 Ambient temperature:  ¨C10 !aC up to max. + 60 Material body:  Dezincification brass (CW602N) Seat seal:  PTFE Internal parts:  Brass, Stainless steel Spindle sealing:  PTFE / FPM; self-adjustable Pilot fluid characzeristics / Actuator material Pilot connection:  G 1/4 resp. 1/4 NPT Pilot fluid:  neutral gases Fluid temperature:  max. +80 !a Actuator:   Body:  Stainless steel, Aluminium   Bottom: WEMA¨CKor coate Seat seals:  NBR Internal parts:  Coated steel FeaturesHigh flow rateSuitable for contaminated process fluidDamped closing (Valves closes against flow direction)For robust industry applicationsSuitable for vacuum up to max. 90 % Characteristic data Val

2/2-way valves DN 15 to DN 50 For neutral gases and liquids Pressure actuated by external fluid Seat valves Internal threads G 1/2 to G 2 or 1/2 NPT to 2 NPT Operating pressure (see table) Description (standard valve) Switching function:   normally closed Flow direction:  determined Mounting position:  as required Process fluid characteristics / Valve material Fluid temperature:  ¨C10 !aC up to max. +180 Ambient temperature:  ¨C10 !aC up to max. + 60 Material body:  Dezincification brass (CW602N) Seat seal:  PTFE Internal parts:  Brass, Stainless steel Spindle sealing:  PTFE / FPM; self-adjustable Pilot fluid characzeristics / Actuator material Pilot connection:  G 1/4 resp. 1/4 NPT Pilot fluid:  neutral gases Fluid temperature:  max. +80 !a Actuator:   Body:  Stainless steel, Aluminium   Bottom: WEMA¨CKor coate Seat seals:  NBR Internal parts:  Coated steel FeaturesHigh flow rateSuitable for contaminated process fluidDamped closing (Valves closes against flow direction)For robust industry applicationsSuitable for vacuum up to max. 90 % Characteristic data Val

2/2-way valves G 1/4 to G 2 For neutral fluids with high particle contamination Externally actuated seat valves Seat valves Internal thread G 1/4 to G 2 resp. 1/4 NPT to 2 NPT Operating pressure 0.2 to 16 bar Pilot pressure (min. = operating pressure, max. 16 bar) G 1/4 - G 1/2   max. 6 bar higher than operating pressure 1/4 NPT - 1/2 NPT  max. 6 bar higher than operating pressure G 3/4 - G 2   max. 1 bar higher than operating pressure 3/4 NPT - G 2 NPT  max. 1 bar higher than operating pressure Description (standard valve) Type:   pressure actuated seat valve with diaphragm actuator Switching function:  normally closed with pilot pressure Flow direction:  determined Fluid temperature:   ¨C10 !aC up to max. +90 Ambient temperature:   ¨C10 !aC up to max. +60 Differential pressure:   0.2 bar required Mounting position:  as required Pilot fluid:   air max. +60 !aC 2 Viscosity:    up to 80 mm /s Material Body:   Brass (CW617N) Cover:   Brass (2.0402) Internal parts:  Brass, Stainless steel Seat seal:   NBR Main seali

2/2-way valves DN 15 to DN 50 For neutral gases and liquids Pressure actuated by external fluid Seat valves Internal threads G 1/2 to G 2 or 1/2 NPT to 2 NPT Operating pressure (see table) Description (standard valve) Switching function:   normally closed Flow direction:  determined Mounting position:  as required Process fluid characteristics / Valve material Fluid temperature:  ¨C10 !aC up to max. +180 Ambient temperature:  ¨C10 !aC up to max. + 60 Material body:  Dezincification brass (CW602N) Seat seal:  PTFE Internal parts:  Brass, Stainless steel Spindle sealing:  PTFE / FPM; self-adjustable Pilot fluid characzeristics / Actuator material Pilot connection:  G 1/4 resp. 1/4 NPT Pilot fluid:  neutral gases Fluid temperature:  max. +80 !a Actuator:   Body:  Stainless steel, Aluminium   Bottom: WEMA¨CKor coate Seat seals:  NBR Internal parts:  Coated steel FeaturesHigh flow rateSuitable for contaminated process fluidDamped closing (Valves closes against flow direction)For robust industry applicationsSuitable for vacuum up to max. 90 % Characteristic data Val

2/2-way valves DN 15 !- 5 For aggressive gases and liquids Pressure actuated by external fluid Seat valves 82380 Internal thread G 1/2 !- G 2 or 1/2 NPT !- 2 N Operation pressure 0 !- 16 bar (see table 82340 82390 82490 Description (standard valve) Switching function:   normally closed Flow direction:  determined Mounting position:  as required Process fluid characteristics / Valve material Fluid temperature:  ¨C10 !aC ... +180 Ambient temperature:  ¨C10 !aC ... + 60 Material body:  Stainless steel (1.4408) Seat seal:  PTFE Internal parts:  Stainless steel Spindle sealing:  PTFE / FPM; self-adjustable Pilot fluid characteristics / Actuator material Pilot connection:  G 1/4 resp. 1/4 NPT Pilot fluid:  neutral gases Pilot pressure:  3.5 !- 8 ba Fluid temperature:  max. +60 !a Actuator:   Body:  Stainless steel, Aluminium   Bottom:  WEMA¨CKor coate Seat seals:  NBR Internal parts:  Coated steel FeaturesSuitable for contaminated process fluidsHigh flow rateHigh media compatability due to optimal material combinationsFor robust industry applicationsDampe

2/2-way valves DN 15 to DN 50   with DVGW approval For neutral burnable gases and other neutral gases Pressure actuated by external fluid Seat valves Internal threads G 1/2 to G 2 Operating pressure 0 to 10 bar Description (standard valve) Switching function:  normally closed Flow direction:  determined Mounting position:  optional Process fluid characteristics / Valve material Fluid temperature:  ¨C10 !aC up to max. +60 Ambient temperature:  ¨C10 !aC up to max. +60 Body:  dezincification brass (CW617N) Seat seal:  FPM Body seal:  FPM Internal parts:  Brass, Stainless steel Spindle sealing:  PTFE / FPM, self-adjustable Pilot fluid characteristics / Actuator material Pilot connection:   G 1/4 Antrieb:   Body:   Stainless steel (1.4408)   Bottom:   Alu WEMA-Kor coated Seat seal:  NBR Internal parts:  Coated steel For contaminated fluids insertion of a strainer is recommended. FeaturesEC type examination certificate Product ID-No.: CE-0085 AT0091 Valve class A Valve group 2High function reliabilityShort response time < 1 sFor robust industry appl

2/2-way valves DN 8 to DN 12 For neutral gases and liquids Pressure actuated by external fluid Diaphragm valves Internal thread G 1/4 to G 1/2 or 1/4 NPT to 1/2 NPT Operating pressure ¨C0.9 to 6 ba Description (standard valve) Valve for neutral gases and liquids up to max. 80 mm2/s (cSt) Switching function:   normally closed Flow direction:   as required Mounting position:   as required Process fluid characteristics / Valve material Fluid temperature:   ¨C10 !aC up to max. +90 Ambient temperature:   ¨C10 !aC  up to max. +50 Material body:   Brass Seat seal:   Fabric reinforced NBR diaphragm Pilot fluid characteristics / Actuator material Pilot fluid:   air, water, hydraulic oil Fluid temperature:   max. +90 !a Body:      Brass, PPO (cover) Seat seal:    Fabric reinforced NBR diaphragm Pilot connection:   G 1/8 Features Spindle seal with diaphragmSuitable for contaminated process fluidsOptical position indicator is standard Characteristic data Valves Part Number Nominal Dia- Connection  Operating pressure * P

2/2-way valves DN 8 to DN 12 For neutral gases and liquids Pressure actuated by external fluid Diaphragm valves Internal thread G 1/4 to G 1/2 or 1/4 NPT to 1/2 NPT Operating pressure ¨C0.9 to 6 ba Description (standard valve) Valve for neutral gases and liquids up to max. 80 mm2/s (cSt) Switching function:   normally closed Flow direction:   as required Mounting position:   as required Process fluid characteristics / Valve material Fluid temperature:   ¨C10 !aC up to max. +90 Ambient temperature:   ¨C10 !aC  up to max. +50 Material body:   Brass Seat seal:   Fabric reinforced NBR diaphragm Pilot fluid characteristics / Actuator material Pilot fluid:   air, water, hydraulic oil Fluid temperature:   max. +90 !a Body:      Brass, PPO (cover) Seat seal:    Fabric reinforced NBR diaphragm Pilot connection:   G 1/8 Features Spindle seal with diaphragmSuitable for contaminated process fluidsOptical position indicator is standard Characteristic data Valves Part Number Nominal Dia- Connection  Operating pressure * P

2/2-way valves DN 15 to DN 100 For neutral gases and liquids Pressure actuated by external fluid, with piston actuation Seat valves Flange connection PN 16 Operating pressure 0 to 16 bar (see technical data) Description (standard valve) Valve for air, water, oil, hot water and steam up to max. 400 mm2/s (cSt) Type:    pressure actuated seat valve by external fluid Switching function:   normally closed   closed by spring force,   opened from P to A by pilot pressure Flow direction:   determined Pilot fluid:    air, max. +80 !a Fluid temperature:   ¨C10 !aC up to max. +180 Ambient temperature:   ¨C10 !aC up to max. +80 Mounting position:   as required Material Body:    Grey cast iron Seat seal:    PTFE Spindle sealing:   PTFE chevron packing Internal parts:   Brass, Stainless steel FeaturesHigh flow rateSuitable for contaminated process fluidsFor robust industry applicationsDamped closing (valve closes against flow direction) Characteristic data Valves Nominal Dia- Part Number Pilot pressure Operating pressure * kv-Val

3/2-way valves DN 15 to DN 100 For neutral gases and liquids Pressure actuated by external fluid, with piston actuation Seat valves Flange connection PN 16 Operating pressure 0 to 16 bar (see technical data) Description (standard valve) Valve for air, water, oil, hot water and steam up to max. 400 mm2/s (cSt) Switching function:   normally closed from P to A,    closed by spring force,    opened from P to A by pilot pressure Flow direction:   determined Pilot fluid:    air, max. +80 !a Fluid temperature:   ¨C10 !aC up to max. +180 Ambient temperature:   ¨C10 !aC up to max. +80 Mounting position:   as required, preferably with actuator vertical on top Material Body:    Grey cast iron Seat seal:    PTFE Spindle sealing:   PTFE chevron packing Internal parts:   Brass, Stainless steel FeaturesSuitable for steamCan be used as Y-pattern/selector valve (pressure connected to A)High flow rateDamped closingFor robust industry applications Characteristic data Valves Pilot pressure Operating pressure * Part Number Nominal  kv-va

3/2-way valves DN 15 - DN 50 For neutral gases and liquids Pressure actuated by external fluid Seat valves Interal thread G 1/2 !- G 83250 Operating pressure (see table) Description (standard valve) Switching function:   normally closed from P to A,   opened from P to A by pilot pressure Flow direction:   determined Mounting position:   as required Process fluid characteristics / Valve material Fluid temperature:  ¨C10 !aC !- max. +180 Ambient temperature:   ¨C10 !aC !- max. +60 Body:   Gun metal Seat seal:   PTFE Internal parts:   Brass, Stainless steel Spindle sealing:   PTFE / EPDM Pilot fluid characteristics / Actuator material Pilot connection:   G 1/4 Pilot fluid:   neutral gases Fluid temperature:   max.+60 !a Body:   Aluminium Seal:   NBR Internal parts:   Brass, Stainless steel FeaturesSuitable for steamCan be used as Y-pattern/selector valve (pressure connected to A)High flow rate Characteristic data Valves Part Number Nominal  Connection  Pilotpressure Operating pressure *1) K -value

2/2-way valves DN 15 to 50 For neutral gases and liquids Pressure actuated by external fluid Diaphragm valves Interal thread G 1/2 to G 2 Operating pressure 0 to 10 bar Description (standard valve) Valve for high-viscosity and contaminated media Switching function:   normally closed   closed by spring force,   opened by pilot pressure Flow direction:   as required Mounting position:   as required Process fluid characteristics / Valve material Fluid temperature:  ¨C10 !aC up to max. +80 Ambient temperature:   ¨C10 !aC up to max. +55 Body:   Grey cast iron Seat seal:   EPDM Pilot fluid characteristics / Actuator material Pilot fluid:   neutral gases Fluid temperature:   max. +40 !a Body:   Polymer material Seal:   NBR Internal parts:   Coated steel FeaturesAny flow direction and mounting positionSpecial seal materials are required for use with oil and oleiferous media Characteristic Data Valves Part Number ? Nominal   Connection  Pilot Pressure Operating Pressure * Weight Total k -value ** v Diameter (mm) Size min.

2/2-way valves DN 15 to 150 For neutral gases and liquids Pressure actuated by external fluid Diaphragm valves Flange connection PN 16 / PN 10 Operating pressure 0 to 10 bar Description (standard valve) Valve for high-viscosity and contaminated media Switching function:   normally closed   closed by spring force,   opened by pilot pressure Flow direction:   as required Mounting position:   as required Process fluid characteristics / Valve material Fluid temperature:  ¨C10 !aC up to max. +80 Ambient temperature:   ¨C10 !aC up to max. +55 Body:   Grey cast iron Seat seal:   EPDM Pilot fluid characteristics / Actuator material Pilot fluid:   air Fluid temperature:   max. +40 !a Body:   Polymer material Seal:   NBR Internal parts:   Coated steel FeaturesAny flow direction and mounting positionSpecial seal materials are required for use with oil and oleiferous media Characteristic Data Valves Part Number ? Nominal Dia- Pilot Pressure Operating Pressure * Weight Total k -value ** v meter min. (bar)