Circle Valve Technologies Inc.
307 Derstine Ave, Suite 204
Lansdale, PA 19446

Toll Free:800-645-6733
Phone: 267-933-6300
Fax: 267-933-6305
Email: [email protected]
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Features
  • Set Pressures to 400 psig
  • Temperature -423°F to +400°F
  • Special Teflon® seat, making bubble-tight seals possible for over 90% of set pressures per spec API 527; not applicable to steam.
  • Adjustable blow down ring.
  • Meets AD-Merkblatt A2 certified by TUV.
  • Cleaned and packaged for use in oxygen service in compliance with CGA specification G-4.1
Rockwood Swendeman Type RXSO ASME Safety Relief Valve
Unit of Measure
1 2 3 4 5 

Item #

Valve Service

Body Material

Cap Type

Inlet

Outlet

Orifice

Cracking Pressure

710NACD-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1/2" MNPT N/A 3/4" Female NPT N/A .75 in N/A 15 to 400 psig
710NADD-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 3/4" MNPT N/A 3/4" Female NPT N/A .75 in N/A 15 to 400 psig
710NADD-A250 N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 3/4" MNPT N/A 3/4" Female NPT N/A .75 in N/A 250 psig
710NACE-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1/2" MNPT N/A 1" Female NPT N/A .75 in N/A 15 to 400 psig
710NADE-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 3/4" MNPT N/A 1" Female NPT N/A .75 in N/A 15 to 400 psig
710NBCE-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1/2" MNPT N/A 1" Female NPT N/A 1 in N/A 15 to 400 psig
710NBDE-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 3/4" MNPT N/A 1" Female NPT N/A 1 in N/A 15 to 400 psig
710NBEE-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1" MNPT N/A 1" Female NPT N/A 1 in N/A 15 to 400 psig
710NBEE-A250 N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1" MNPT N/A 1" Female NPT N/A 1 in N/A 250 psig
710NBCF-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1/2" MNPT N/A 1 1/4" Female NPT N/A 1 in N/A 15 to 400 psig
710NBDF-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 3/4" MNPT N/A 1 1/4" Female NPT N/A 1 in N/A 15 to 400 psig
710NBEF-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1" MNPT N/A 1 1/4" Female NPT N/A 1 in N/A 15 to 400 psig
710NCDF-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 3/4" MNPT N/A 1 1/4" Female NPT N/A 1.25 in N/A 15 to 300 psig
710NCEF-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1" MNPT N/A 1 1/4" Female NPT N/A 1.25 in N/A 15 to 300 psig
710NCFF-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1-1/4" MNPT N/A 1 1/4" Female NPT N/A 1.25 in N/A 15 to 300 psig
710NCDG-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 3/4" MNPT N/A 1 1/2" Female NPT N/A 1.25 in N/A 15 to 400 psig
710NCEG-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1" MNPT N/A 1 1/2" Female NPT N/A 1.25 in N/A 15 to 400 psig
710NCFG-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1-1/4" MNPT N/A 1 1/2" Female NPT N/A 1.25 in N/A 15 to 400 psig
710NDEG-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1" MNPT N/A 1 1/2" Female NPT N/A 1.5 in N/A 15 to 350 psig
710NDEG-A075 N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1" MNPT N/A 1 1/2" Female NPT N/A 1.5 in N/A 75 psig
710NDFG-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1-1/4" MNPT N/A 1 1/2" Female NPT N/A 1.5 in N/A 15 to 350 psig
710NDGG-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1-1/2" MNPT N/A 1 1/2" Female NPT N/A 1.5 in N/A 15 to 350 psig
710NDEH-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1" MNPT N/A 2" Female NPT N/A 1.5 in N/A 15 to 400 psig
710NDFH-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1-1/4" MNPT N/A 2" Female NPT N/A 1.5 in N/A 15 to 400 psig
710NDGH-AXXX N/A Air/Gas Sec. VIII N/A Bronze N/A Plain Cap N/A 1-1/2" MNPT N/A 2" Female NPT N/A 1.5 in N/A 15 to 400 psig
Unit of Measure
1 2 3 4 5