PV 6291 Reflex Pneumatic bottom blowdown
With pneumatic actuator - ST 6135
The air supply must not exceed 6 bar
The bowdown valve must be quickly + fully opened
The air supply must not exceed 6 bar
The bowdown valve must be quickly + fully opened
General information
Brand:
RTK
Type:
Blowdown
Category
Valves > Shut-off Valve
Markets
Industrial > Water & Wastewater
Industrial > Pulp & Paper
Industrial > Nuclear
Industrial > Petrochemical
Industrial > Heating and Cooling
Industrial > Industrial Boilers
Application
Bottom blowdown valves for steam boilers
Product Design
Globe
Benefits
Bottom blowdown valves for steam boilers
• Maintenance free stem packing
• Clear low through valve
• Protection of stem packing by back sealing
• Easy replacement of plug
• Reduced susceptibility to water hammer
due to bonnet having a smaller cross
sectional area
• Guided plug which reduces plug vibration
• Supplied with high quality B7A grooved
gaskets
• Maintenance free stem packing
• Clear low through valve
• Protection of stem packing by back sealing
• Easy replacement of plug
• Reduced susceptibility to water hammer
due to bonnet having a smaller cross
sectional area
• Guided plug which reduces plug vibration
• Supplied with high quality B7A grooved
gaskets
Performance data
Technical data
Two-way design Angle form
DIN ANSI DIN
Nominal diameter DN 20 … 65 NPS ¾ … 2 ½ DN 20 … 50
Nominal pressure PN 40 CL 300 PN 63 ... 160
Body material GP240GH SA 216 WCB GP240GH, Others on request
Stem packing Chevron rings (max. +250 °C) Chevron rings (max. +290 °C)
PTFE-graphite PTFE-graphite
Trim variations Shut-off plug Shut-off plug Stellited
Stem + Seat 1.4571 Stem+ Seat 1.4571 Stellited
Mounting position Any
Max. press / temp. According to DIN EN 1092 According to ASME B16.34
Options: Solenoid valve with control unit for bottom blowdown valve
Approvals DGRL (CE), ATEX (für PV...), CCC
Two-way design Angle form
DIN ANSI DIN
Nominal diameter DN 20 … 65 NPS ¾ … 2 ½ DN 20 … 50
Nominal pressure PN 40 CL 300 PN 63 ... 160
Body material GP240GH SA 216 WCB GP240GH, Others on request
Stem packing Chevron rings (max. +250 °C) Chevron rings (max. +290 °C)
PTFE-graphite PTFE-graphite
Trim variations Shut-off plug Shut-off plug Stellited
Stem + Seat 1.4571 Stem+ Seat 1.4571 Stellited
Mounting position Any
Max. press / temp. According to DIN EN 1092 According to ASME B16.34
Options: Solenoid valve with control unit for bottom blowdown valve
Approvals DGRL (CE), ATEX (für PV...), CCC
Other information
Stem packing: Chevron rings (max. +250 C)
PTFE-graphite
Trim variations: Shut-off plug
Stem + Seat 1.4571
Data
Design Standard
Design standard ANSI:
Yes
Design standard DIN:
Yes
Unit
Unit Metric:
Yes
Unit Imperial:
Yes
Temp
Max C°:
250.00
Max F°:
482.00
Pressure Rating
Pressure rating PN:
PN 16,
PN 25,
PN 40
Pressure rating class:
150,
300
Nominal size
Nominal Size [mm] (DN):
20,
25,
32,
40,
50,
65
Nominal Size [Inch] NPS:
0.75,
1,
1.5,
2,
2.5
Force
Force kN (elektric):
15,
22,
30
Rated travel
Rated Travel mm:
Max. 20 mm
Rated Travel Inch:
Max. 787 Inch
Housing
Housing Material:
GP240GH,
SA 216 WCB
Housing Type:
Cast
Other data
Fluids:
Water
Auxiliary Energy (Actuation):
Pneumatic
Actuator:
Pneumatic
Stem packing:
Live Loaded,
V-Type
Fail-Safe Function:
On
Flanges:
EN 1092-1,
ASME B16.5
Certification:
DGRL (CE),
ATEX (fr PV...),
CCC