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High Performance

Type 455, 456

Safety valves from the High Performance product group offer especially high capacity for their size.  With a large quantity of nominal diameters (DN), pressure ranges and product options, they have proven themselves as a universal safety valve for many applications. 

Approvals

Industries

  • Chemical Industry
  • Petrochemical Industry
  • Power
  • Technical Gases
  • Food and Beverage Industry
  • Pharmaceutical Industry
Product info Metric unit US unit

Key feature

High pressure with seat

High pressure with seat

Nominal diameter inlet

DN 25  -  DN 100 1"  -  4"

Nominal diameter outlet

Pressure

Actual orifice diameter d0

20  -  74 mm 0,79  -  2,91 in

Actual orifice area A0

314  -  4301 mm² 0,487  -  6,666 in²

Pressure

2,5  -  100 bar 36  -  1450 psig

Flange rating inlet

PN 63  -  PN 160 CL150  -  CL1500

Temperature acc. to DIN EN

-85  to  550 °C -121  to  1022 °F

Temperature acc. to ASME

-29  to  538 °C -20  to  1000 °F

Body material

1.0619, 1.4581, 1.7357

SA 216 WCB, SA 351 CF10M, SA 217 WC6

KUB-Materials

Valve connection

Flange acc. to
DIN EN 1092-1
ASME B 16.5
JIS 2220

Flange acc. to
DIN EN 1092-1
ASME B 16.5
JIS 2220

Bellows

Stainless steel and elastomer

Stainless steel and elastomer

Type of loading

Spring loaded

Spring loaded

Approvals

PED/DIN EN ISO 4126-1, PED/AD 2000-Merkblatt A2, ASME Sec. VIII Div. 1, CRN, AQSIQ, EAC

PED/DIN EN ISO 4126-1, PED/AD 2000-Merkblatt A2, ASME Sec. VIII Div. 1, CRN, AQSIQ, EAC

Specials

Feature Option Code Schematic drawing
Disc

Metal sealing, with detachable lifting aid

J26  (Standard)

Metal sealing, bull-race

J24 (Standard)

Metal sealing, 1.4404

L44

With soft sealing O-ring CR „K”

J21

With soft sealing O-ring EPDM „D”

J22

With soft sealing O-ring FKM „L”

J23

With soft sealing O-ring FFKM „C”

J20

Seat/nozzle

Stellited seat / nozzle

L61

Inlet body    
Bellows

Balanced bellows with closed bonnet

J78

Balanced bellows with open bonnet

J68

Balanced bellows for low set pressures with closed bonnet

J78J63
(on request)

Balanced bellows for low set pressures with open bonnet

J68J63
(on request)

Balanced bellows with special material Hastelloy

J81S15

Balanced bellows with special material INCONEL

J83S15

  • Bellows
Caps and levers

Screwed cap H2


Screwed plain lever H3


Screwed packed lever H4


 
Spring

Spring, heat resistant

X01

Spring, corrosive resistant 1.4310

X04

Spring, INCONEL X-750

X08 (on request)

  • Spring
Test gag

For cap H2 (H1)

J70

For lever H4 (H6)

J69

Bonnet

Closed


Open


Heating jacket
Lift indicator

For lifting device H4 (H6)

J39J93

Lift stopper

Ring

J51

Actuate screw H2

J52

Actuate screw H4

J50

Drain hole

G1/4"

J18

G1/2"

J19

  • Drain hole
O-ring-damper

Cap H2

J65

Packed lever H4

J66

 
Connections outlet    
Free of oil and grease

J85

NACE material test certificate

Sour gas resistance acc. to NACE MR0175; Certificate acc. to DIN EN 10204-3.1

N78

Sour gas resistance acc. to NACE MR0103; Certificate acc. to DIN EN 10204-3.1

N77

  • NACE-Logo
KUB bursting disc

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Documentation    
Balanced Piston    
   
   
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