Apollo 500 Series Safety Relief Valves

Apollo Sec VIII Air/Gas Bronze Safety Relief Valve with Stainless Steel Trim, Screwed Cap, PCTFE Seat, Default Setting, 2" x 2-1/2" (MNPT x FNPT)

Scraped SKU: 521HHBKKAAXXXX 2026-06-21 14:12:06

Attributes

Group Code521HHBKKAAXXXX
Product Typesafety-relief-valve
Brand Seriesapollo-500-series-safety-relief-valves
Applicationsheating, cooling, steam, compressed air
ApprovalsCRN, PED 2014/68/EU – Module H
Solutionsutility

Description

ASME Section VIII capacity certified safety relief valve for overpressure protection of steam, air/gas and liquid systems, pressure vessels, piping and similar equipment.
  • ASME Section VIII Certified Capacities
  • 5-1200 psig Set Pressures @ 800°F
  • 1/2" - 2" Inlet Connections
  • Lapped Metal Seats; O-ring and PCTFE Seats Optional
  • Screwed Cap or Packed Lift Lever Configuration
  • Made in the USA

 

Variations (2)

521HHBKKAA0350

size2"
dimensions-
weight16 lb
packaging-
d12.38
l13.50
d22.88
l22.75
z21.83
h18.70
V2.88
DN1-
DN2-

521HHBKKAA0150

size2" x 2-1/2"
dimensions-
weight16 lb
packagingCarton (1 pce)
d12.38
l13.50
d22.88
l22.75
z21.83
h18.70
V2.88
DN1-
DN2-

Specifications

articleApollo Sec VIII Air/Gas Bronze Safety Relief Valve with Stainless Steel Trim, Screwed Cap, PCTFE Seat, Default Setting, 2" x 2-1/2" (MNPT x FNPT)
article number with gtin521HHBKKAAXXXX
manufacturerAalberts integrated piping systems Americas, Inc. (Apollo)
weight16 lb
colorbronze
materialsbronze (ASTM B584-C84400)
finishingnone
shapePerpendicular
connection typeMPT - male thread conical (NPT), FPT - female thread conical (NPT)
product groupvalves (safety relief valves)
ETIM classEC011311 Safety valve
brandApollo
series500 Series Safety Relief Valves
product type521HHBKKAAXXXX
ETIM
{"etim-class":"EC011311 Safety valve","Housing material":"Bronze","Connection 1":"External thread conical (NPT)","Outer pipe diameter connection 1":"60.32mm","Outer pipe diameter connection 1 (imperial)":"2.38\"","Connection 2":"Internal thread conical (NPT)","Outer pipe diameter connection 2":"73.02mm","Outer pipe diameter connection 2 (imperial)":"2.88\"","Surface protection":"Untreated","Length of connection 1":"88.9mm","Length of connection 1 (imperial)":"3.5\"","Length of connection 2":"69.85mm","Length of connection 2 (imperial)":"2.75\"","Working length connection 2":"46.48mm","Working length connection 2 (imperial)":"1.83\"","Height":"","Height (imperial)":"","Suitable for heating":"Yes","Suitable for cooling":"Yes","Suitable for solar heating":"No","Suitable for hot tap water":"No"}
Applicationscompressed air, steam, heating, cooling
Segmentsutility
ApprovalsCRN, PED 2014/68/EU – Module H

PDF Documents

[Datasheet] 500 Submittal Sheet Open PDF