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Compact Performance

Type 437

The product group Compact Performance includes threaded and flanged safety valves with compact dimensions for economical protection of small and midsized capacites. Due to its many orifice diameters, seals, and connections this product group offers a very wide area of application.

Approvals

Industries

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

Key feature

Metal to metal or sealing plate

Metal to metal or sealing plate

Nominal diameter inlet

Nominal diameter inlet - Thread

G 3/8  -  1 NPT 1/2"  -  1"

Nominal diameter inlet - Flange

DN 15  -  DN 25 1/2"  -  1"

Nominal diameter outlet

Orifice

Pressure

Actual orifice diameter d0

6  -  10 mm 0,236  -  0,394 in

Actual orifice area A0

28,3  -  78,5 mm² 0,044  -  0,122 in²

Pressure

0,1  -  365 bar 1,5  -  5294 psig

Flange rating inlet

PN 40  -  PN 400 CL150  -  CL2500

Temperature acc. to DIN EN

-270  to  280 °C -454  to  536 °F

Temperature acc. to ASME

-268  to  280 °C -450  to  536 °F

KUB-Materials

Material outlet body

1.4104, 1.4404 SA 479 430, SA 479 316L

Material inlet body

1.4104, 1.4404, 1.4404 stellitiert SA 479 430, SA 479 316L, SA 479 316L stellitiert

Valve connection

Thread acc. to DIN ISO 228-1, DIN ISO 7-1 / BS 21 or ASME B1.20.1
Flange acc. to DIN EN 1092-1 or ASME B16.5

Thread acc. to DIN ISO 228-1, DIN ISO 7-1 / BS 21 or ASME B1.20.1
Flange acc. to DIN EN 1092-1 or ANSI/ASME B16.5

Bellows

no bellows

no bellows

Type of loading

Spring loaded

Spring loaded

Approvals

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

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

Specials

Feature Option Code Schematic drawing
Disc

metal sealing, 1.4404 (option only for 4373 with d010, for others as a standard)

L44

metal sealing, 1.4404 stellited

J25

soft sealing plate VESPEL-SP „T” 

J49

soft sealing plate PCTFE „G” 

J48

soft sealing plate PTFE-FDA „A”

J44

Seat/nozzle    
Inlet body

Stellited sealing surface/ inlet body

L20

Bellows    
Caps and levers

Screwed cap H2

Screwed plain lever H3

Screwed packed lever H4

Spring

heat resistant

X01

corrosive resistant 1.4310

X04

INCONEL X-750

X08

  • Spring
Test gag

for Cap H2

J70

Heating jacket

H29

Connections

Threaded connection: G, R/BSPT, NPT
(combinations on request or in catalog)

diverse

Flange connection: DIN, ASME
(combinations on request or in catalog)

diverse

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

 

 

 
Special materials

Hastelloy® C4/ 2.4610

Monel® 400/ 2.4360

Duplex/ 1.4462

O-ring disc    
Bellows Inconel    
Inconel spring    
   
Documentation    
Balanced Piston    
   
   
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