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API

Type 526

Safety valves from the API product group meet all the requirements of API 526 such as standardized capacity, nominal diameter, and center to face dimensions which offers 100% compatibility.  Because of their robust construction, they are especially suitable for being constructed from special materials such as Duplex, Monel, and Hastelloy.

Approvals

Industries

  • Oil and Gas Industry
  • Chemical Industry
  • Petrochemical Industry
  • Energy
  • Technical Gases
Product info Metric unit US unit

Key feature

Fulfillment of API 526

Fulfillment of API 526

Nominal diameter inlet

DN 25  -  DN 200 1"  -  8"

Nominal diameter outlet

Orifice

D -T D -T

Pressure

Actual orifice diameter d0

14  -  161,5 mm 0,551  -  6,36 in

Actual orifice area A0

154  -  20485 mm² 0,239  -  31,75 in²

Pressure

0,12  -  413,8 bar 2  -  6000 psig

Flange rating inlet

CL150  -  CL2500 CL150  -  CL2500

Temperature acc. to DIN EN

-270  to  550 °C -454  to  1022 °F

Temperature acc. to ASME

-268  to  538 °C -450  to  1000 °F

Body material

1.0619, 1.4408, 1.7357

SA 216 WCB, SA 351 CF8M, SA 217 WC6, SA 352 LCB, SA 351 CF3M, SA 995 Gr 4A CD3MN (Duplex), SA 494 M35-1 (Monel), SA 494 CX2MW (Hastelloy), SA 494 CW-6MC (Inconel)

KUB-Materials

Valve connection

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

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

Bellows

INCONEL® 625

INCONEL® 625

Type of loading

Spring loaded

Spring loaded

Approvals

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

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

Specials

Feature Option Code Schematic drawing
Disc

metal sealing, 1.4404 stellited

J25

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

with soft sealing plate SP „T”

J49

with soft sealing plate PCTFE „G”

J48

with soft sealing platePTFE „A”

J44

Seat/nozzle

Stellited seat / nozzle

L62

Bellows

Bellows: Inconel 625 / 2.4856

J82

Bellows: Inconel 625/ conn.Parts 316L

J83

High temperature equipment (only for type 5267)

J88

Balanced Piston

K10

Caps and levers

Screwed cap H2

Screwed plain lever H3

Screwed packed lever H4

Bolted cap H1

K01

Bolted lifting device H6

K06

Spring

heat resistant

X01
(Standard)

stainless steel 1.4310

X04

INCONEL X-750

X08

  • Spring
Test gag

for cap H2

J70

for lifting device H4

J69

Bonnet

closed

open

Heating jacket

-

Lift indicator

Lift indicator for lifting device H4 H4 (H6)

J39J93

Lift stopper

Lift stopper ring

J51

Actuate screw H2

J52

Actuate screw H4

J50

Drain hole    
O-ring-damper    
Butt-weld connection

Butt-weld connection

S05

Connections outlet    
Free of oil and grease

Free of oil and grease

J85

Bug screen

Bug screen

M70

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
High Alloy Concept

22Cr Duplex Body

H1D

22Cr Duplex Level 1 (Nozzle and disc)

K1AL43

22Cr Duplex Level 2 (Nozzle, disc, guide and spindlel)

K1AL43K4DK3D

Monel 400 Body

H1B

Monel 400 Level 1 (Nozzle and disc)

L66L40

Monel 400 Level 2 (Nozzle, disc, guide and spindlel)

L66L40K4AK3A

Hastelloy Body

H1C

Hastelloy Level 1 (Nozzle and disc)

L67L41

Hastelloy Level 2 (Nozzle, disc, guide and spindlel)

L67L41K4BK3B

Inconel Level 1 (Nozzle and disc)

L69L42

Inconel Level 2 (Nozzle, disc, guide and spindlel)

L69L42K4CK3C

Further combinations of materials until the complete valve

on request

  • Level 1
  • Level 2
  • Level Gehäuse
Documentation    
Balanced Piston

Balanced Piston

K10

   
   
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