01577 864870 enquiries@jmoncrieff.co.uk

Type 526 - Leser Flanged API Valves

API Valves are available from D to L orifice (1" to 3" with CL150 & CL300 Flanges)

Pressure Range is 0.3 to 51 bar g. (depending on valve type)


LESER - API safety valves offer ultimate protection against overpressure in all applications of steam, gases and liquids.

Simple safe solutions for heavy duty applications such as crude oil extraction, transportation and processing in:


Refineries * Chemical * Petrochemical * Oil and Gas * Onshore and Offshore Vessels and piping Systems * Blow-Down Systems * Storage Tank Farms



Part NumberConnectionsRange (Bar)OrificeMaterialTop (Sealed)Seal
5262.00141" ANSI #150 RF0.51 to 19.5DWCB, Carbon SteelH4 LeverMetal
5262.00241" ANSI #300 RF
0.51 to 51
DWCB, Carbon Steel
H4 Lever
Metal
5262.0012
1" ANSI #150 RF
0.51 to 19.5
DWCB, Carbon Steel
H2 CapMetal
5262.0022
1" ANSI #300 RF
0.51 to 51
DWCB, Carbon Steel
H2 Cap
Metal
5262.0154
1" ANSI #150 RF
0.51 to 19.5
EWCB, Carbon Steel
H4 Lever
Metal
5262.0152
1" ANSI #150 RF
0.51 to 19.5
EWCB, Carbon Steel
H2 Cap
Metal
5262.0164
1" ANSI #300 RF
0.51 to 51
EWCB, Carbon Steel
H4 Lever
Metal
5262.0162
1" ANSI #300 RF
0.51 to 51
EWCB, Carbon Steel
H2 Cap
Metal







5262.02941.5" ANSI #150 RF
0.51 to 19.7
FWCB, Carbon Steel
H4 Lever
Metal
5262.02921.5" ANSI #150 RF
0.51 to 19.7
FWCB, Carbon Steel
H2 Cap
Metal
5262.03141.5" ANSI #300 RF
0.51 to 51
FWCB, Carbon Steel
H4 Lever
Metal
5262.03121.5" ANSI #300 RF
0.51 to 51
FWCB, Carbon Steel
H2 Cap
Metal
5262.04541.5" ANSI #150 RF
0.51 to 19.7
GWCB, Carbon Steel
H4 Lever
Metal
5262.04521.5" ANSI #150 RF
0.51 to 19.7
GWCB, Carbon Steel
H2 Cap
Metal
5262.04741.5" ANSI #300 RF
0.51 to 51
GWCB, Carbon Steel
H4 Lever
Metal
5262.04721.5" ANSI #300 RF
0.51 to 51
GWCB, Carbon Steel
H2 Cap
Metal
5262.14241.5" ANSI #150 RF
0.51 to 19.7
HWCB, Carbon Steel
H4 Lever
Metal
5262.14221.5" ANSI #150 RF
0.51 to 19.7
HWCB, Carbon Steel
H2 Cap
Metal







5262.14442" ANSI #300 RF
0.61 to 51HWCB, Carbon Steel
H4 Lever
Metal
5262.14422" ANSI #300 RF
0.61 to 51
HWCB, Carbon Steel
H2 Cap
Metal
5262.16242" ANSI #150 RF
0.91 to 29.7JWCB, Carbon Steel
H4 Lever
Metal
5262.16222" ANSI #150 RF
0.91 to 29.7JWCB, Carbon Steel
H2 Cap
Metal







5262.16443" ANSI #300 RF
0.8 to 51JWCB, Carbon Steel
H4 Lever
Metal
5262.16423" ANSI #300 RF
0.8 to 51
JWCB, Carbon Steel
H2 Cap
Metal
5262.20243" ANSI #150 RF
0.41 to 19.7KWCB, Carbon Steel
H4 Lever
Metal
5262.20223" ANSI #150 RF
0.41 to 19.7
KWCB, Carbon Steel
H2 Cap
Metal
5262.20343" ANSI #300 RF
0.41 to 51
KWCB, Carbon Steel
H4 Lever
Metal
5262.20323" ANSI #300 RF
0.41 to 51
KWCB, Carbon Steel
H2 Cap
Metal
5262.23243" ANSI #150 RF
0.3 to 19.7
LWCB, Carbon Steel
H4 Lever
Metal
5262.23223" ANSI #150 RF
0.3 to 19.7
LWCB, Carbon Steel
H2 Cap
Metal


Product Compare (0)
D Orifice Leser Valve 1" #150 x 2" #150 5262.0014

D Orifice Leser Valve 1" #150 x 2" #150 5262.0014

SKU: 5262.0014

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

D Orifice Leser Valve 1" #300 x 2" #150 5262.0024

D Orifice Leser Valve 1" #300 x 2" #150 5262.0024

SKU: 5262.0024

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

D Orifice Leser Valve 1" #150 x 2" #150 5262.0012

D Orifice Leser Valve 1" #150 x 2" #150 5262.0012

SKU: 5262.0012

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

D Orifice Leser Valve 1" #300 x 2" #150 5262.0022

D Orifice Leser Valve 1" #300 x 2" #150 5262.0022

SKU: 5262.0022

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

E Orifice Leser Valve 1" #150 x 2" #150 5262.0154

E Orifice Leser Valve 1" #150 x 2" #150 5262.0154

SKU: 5262.0154

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

E Orifice Leser Valve 1" #150 x 2" #150 5262.0152

E Orifice Leser Valve 1" #150 x 2" #150 5262.0152

SKU: 5262.0152

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

E Orifice Leser Valve 1" #300 x 2" #150 5262.0164

E Orifice Leser Valve 1" #300 x 2" #150 5262.0164

SKU: 5262.0164

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

E Orifice Leser Valve 1" #300 x 2" #150 5262.0162

E Orifice Leser Valve 1" #300 x 2" #150 5262.0162

SKU: 5262.0162

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

F Orifice Leser Valve 1.5" #150 x 2" #150 5262.0294

F Orifice Leser Valve 1.5" #150 x 2" #150 5262.0294

SKU: 5262.0294

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

F Orifice Leser Valve 1.5" #150 x 2" #150 5262.0292

F Orifice Leser Valve 1.5" #150 x 2" #150 5262.0292

SKU: 5262.0292

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

F Orifice Leser Valve 1.5" #300 x 2" #150 5262.0314

F Orifice Leser Valve 1.5" #300 x 2" #150 5262.0314

SKU: 5262.0314

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

F Orifice Leser Valve 1.5" #300 x 2" #150 5262.0312

F Orifice Leser Valve 1.5" #300 x 2" #150 5262.0312

SKU: 5262.0312

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

G Orifice Leser Valve 1.5" #150 x 3" #150 5262.0454

G Orifice Leser Valve 1.5" #150 x 3" #150 5262.0454

SKU: 5262.0454

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

G Orifice Leser Valve 1.5" #150 x 3" #150 5262.0452

G Orifice Leser Valve 1.5" #150 x 3" #150 5262.0452

SKU: 5262.0452

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

G Orifice Leser Valve 1.5" #300 x 3" #150 5262.0474

G Orifice Leser Valve 1.5" #300 x 3" #150 5262.0474

SKU: 5262.0474

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

G Orifice Leser Valve 1.5" #300 x 3" #150 5262.0472

G Orifice Leser Valve 1.5" #300 x 3" #150 5262.0472

SKU: 5262.0472

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

H Orifice Leser Valve 1.5" #150 x 3" #150 5262.1424

H Orifice Leser Valve 1.5" #150 x 3" #150 5262.1424

SKU: 5262.1424

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

H Orifice Leser Valve 1.5" #150 x 3" #150 5262.1422

H Orifice Leser Valve 1.5" #150 x 3" #150 5262.1422

SKU: 5262.1422

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

H Orifice Leser Valve 2" #300 x 3" #150 5262.1444

H Orifice Leser Valve 2" #300 x 3" #150 5262.1444

SKU: 5262.1444

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

H Orifice Leser Valve 2" #300 x 3" #150 5262.1442

H Orifice Leser Valve 2" #300 x 3" #150 5262.1442

SKU: 5262.1442

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

J Orifice Leser Valve 2" #150 x 3" #150 5262.1624

J Orifice Leser Valve 2" #150 x 3" #150 5262.1624

SKU: 5262.1624

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

J Orifice Leser Valve 2" #150 x 3" #150 5262.1622

J Orifice Leser Valve 2" #150 x 3" #150 5262.1622

SKU: 5262.1622

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

J Orifice Leser Valve 3" #300 x 4" #150 5262.1644

J Orifice Leser Valve 3" #300 x 4" #150 5262.1644

SKU: 5262.1644

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

J Orifice Leser Valve 3" #300 x 4" #150 5262.1642

J Orifice Leser Valve 3" #300 x 4" #150 5262.1642

SKU: 5262.1642

Leser API Series Safety Relief Valve Type 526 for Liquid, Gas and Steam Applications.Notes:Maximum Pressure is dependent on temperature of the applicationFLOW TABLELiquid (Water)Pressure (bar g.)0.21...

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