BOPP & REUTHER Safety Valves

Bopp & Reuther designs, manufactures and distributes high quality safety, control and shut off valves. B&R-technology ensures that people and investments are protected while conserving natural resources and raw materials.
Bopp & Reuther safety valves can be found wherever pressure systems for steam, gases and liquids need to be reliably protected. Customers from every area of the process industry benefit from our experience and process expertise – for more than 135 years.

Regular Flow Safety Valve Type Si C132x/142x

Sizes: DN 15, DN 20 and DN 25
  ½“, ¾“ and 1“
Pressure ratings: PN 40 to PN 400
  ASME #150 to #1500
Set pressures: 0,3 to 200 bar g
Temperature range: -270°C to +427°C
Connections: Flange DIN or ASME,
  thread metric or NPT
Materials: 1.0619 / WCB
  1.4408 / CF8M
Approvals: ASME VIII (UV), ASME III (NV), DGRL 97/23/EG (CE), VdTÜV

Regular Flow Safety Valve Type Si 032x

Sizes: DN 15, DN 25
Pressure ratings: PN 40 to PN 400
ASME #150 to #2500
Set pressures: 0,3 to 400 bar g
Temperature range: -270°C to +400°C
Connections: Flange DIN, Swagelok,
thread metric or NPT
Materials: 1.4571
Approvals: DGRL 97/23/EG (CE), VdTÜV

Regular Flow Safety Valve Type Si 2321 (gray cast iron)

Sizes: DN 15 to DN 150
Pressure ratings: PN 16
Set pressures: 0,5 to 16 bar g
Temperature range: -10°C to +300°C
Connections: Flange DIN
Materials: 0.6025/GG-25
Approvals: DGRL 97/23/EG (CE), VdTÜV

Regular Flow Safety Valve Type Si 4322 (cast steel)

Sizes: DN 20 to DN 100
Pressure rating: PN 10 to PN 40
Set pressures: 0,5 to 40 bar g
Temperature range: -270°C to +450°C
Connections: Flange DIN
Materials: 1.0619 / WCB
1.4408 / CF8M
Approvals: DGRL 97/23/EG (CE), VdTÜV

Regular Flow Safety Valve Type Si 2323 / Si 2324 / Si 2325

Sizes: DN 20 to DN 65
Pressure rating: PN 160 to PN 400
Set pressures: 0,5 to 400 bar g
Temperature range: -196°C to +400°C
Connections: Flange DIN
Materials: 1.0619 / WCB
1.4308 / CF8
1.4408 / CF8M
Approvals: DGRL 97/23/EG (CE), VdTÜV

High Flow Safety Valve Type Si 6301

Application: for steam, gases or liquids / hot water;
Heating systems, acc. TRD 421 and TRD 721
Sizes: DN 20 to DN 200
Pressure rating: PN 16
Set pressures: 0,5 to 16 bar g
Temperature range: -10°C to +300°C
Connections: Flange DIN
Materials: 0.6025/GG-25
Approvals: DGRL 97/23/EG (CE), VdTÜV

Process Safety Valve / High Flow Safety Valve Type Si 4302

Sizes: DN 20 to DN 200
Pressure ratings: PN 10 to PN 40
Set pressures: 0,5 to 40 bar g
Temperature range: -270°C to +450°C
Connections: Flange DIN
Materials: 1.0619 / WCB
1.4408 / CF8M
Approvals: DGRL 97/23/EG (CE), VdTÜV

High-Pressure High Flow Safety Valve Type Si 6303 / Si6304 / Si 6305

Sizes: DN 25 to DN 400
Pressure ratings: PN 25 to PN 400
Set pressures: 0,5 to 250 bar g
Temperature range: -196°C to +530°C
Connections: Flange DIN, welding end
Materials: 1.0619, 1.4308, 1.4408, 1.7357
Approvals: DGRL 97/23/EG (CE), VdTÜV

API Safety Valve Type Si 8301 - 07

Size: DN 1“ to 8“
  SKB: D to T
Pressure rating: ASME #150 to #2500
Set pressures: 0,5 to 414 bar g
Temperature range: -268°C to +538°C
Connections: Flange ASME
Materials: 1.0619 / WCB
  1.7357 / WC6
  1.4408 / CF8M
Technical design: acc. API Standard 526
Approvals: ASME VIII (UV), ASME III (NV), DGRL 97/23/EG (CE), VdTÜV

API High-Capacity Safety Valve Type Si 8301 - 03 V, W

Sizes: DN 10“ to 12“
  SKB: V and W
Pressure rating: ASME #150 to #300
Set pressures: up to 20,7 bar g / 300 psi
Temperature range: -268°C to +538°C
Connections: Flange ASME
Materials: 1.0619 / WCB
  1.7357 / WC6
  1.4408 / CF8M
Technical design: acc. API Standard 526
Approvals: ASME VIII (UV), DGRL 97/23/EG (CE), VdTÜV

Safety Valves with pneumatic supplementary loading

* 5 piston sizes available (design .26)
  * combinable with all safety valves
     type Si 63, Si 43, Si 83
Sizes: DN 25 to 400
Function: The load air increases the closing force up to
  the set pressure and the lifting air supports
  the blow-off process.
  The fail-safe function of the safety valve is
  guaranteed even in case of air failure.
Advantages: reduced hysteresis (+3% / -4% possible)
  stable performance,
  sealing up to the set pressure,
  high degree of accuracy
Approvals: DGRL 97/23/EG (CE), VdTÜV

Pneumatic Control Unit Type PC 50

Design: * Modular design,
     standard device is purely pneumatic
  * Only auxiliary power (pneumatic)
     required for operation
  * Triple redundancy
  * Pressure switches can be checked
     during operation
  * No air consumption in operating condition
Set pressures: 0,1 bis 250 bar g
Extension options: Safety valve testing option
  Magnetic remote release
  Heating
  EX-design
  Free of non-ferrous metals
  More than one safety valve can be operated with a control unit

High-Pressure Steam Safety Valve Type Si 6106

Sizes: DN 80 to DN 300
Pressure ratings: PN 40 to PN 160
Set pressures: up to 180 bar g
Temperature range: up to +550°C
Connections: Flange DIN, welding end
Materials: 1.0619/GS
1.7357/CrMo
1.7379/CrMo9-10
Approvals: DGRL 97/23/EG (CE), VdTÜV

Steam Safety Valve in accordance with ASME Type Si 9101 - 05

Size: DN 1 ½“ to DN 10“
Pressure ratings: ASME #150 to #1500
Set pressures: 1 bar to 150 bar g
Temperature range: -46°C to +620°C
Connections: Flange ASME
Materials: WCB
WC9
C12A
Approvals: ASME I (V), VIII (UV), III (NV), DGRL 97/23/EG (CE)

High-Pressure Steam Safety Valve acc. ASME Type Si 9106 / Si 9504 - 07

Sizes: DN 1 ½“ to DN 20“
Pressure ratings: ASME #900 to #2500
Set pressures: 1 bar to 330 bar g
Temperature range: -46°C to +620°C
Connections: Flange ASME
Materials: WCB
WC9
C12A
Approvals: ASME I (V), VIII (UV), III (NV), DGRL 97/23/EG (CE)

Pressure Reducing Valve for Water Type Re 3431 - 33

Applications: Water supply systems,
  suitable for variable downstream
  consumption and large power differences,
  approved for drinking water and cold water
Sizes: DN 65 to DN 400
Pressure ratings: PN 10 to PN 40
Upstream Pressure: up to 40 bar g
Connections: Flange DIN
Materials: Body 1.4408/CrNiMo
  all medium wetted parts in stainless steel
Approvals: DGRL 97/23/EG (CE)

Option: Changeover Valve

Applications: All industrial facilities where 100% plant
  availability is required (even during
  maintenance and checking of safety valves).
Sizes: DN 20 to DN 300
Pressure: up to 160 bar g
Design: * Spinde seal with stuffing box or
     additionally with bellows;
  * Inlet blocking: one changeover valve
     at the inlet of two safety valves
  * Inlet and outlet blocking: Two changeover
     valves connected by a chain, one
     changeover valve each at the inlet and
     outlet of two safety valves