Circle Valve Technologies Inc.
1533 Gehman Road
Harleysville, PA 19438

Toll Free:800-645-6733
Phone: 267-933-6300
Fax: 267-933-6305
Email: [email protected]
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Features
  • Set Pressures to 300 psig
  • Temperature to +400°F
  • Teflon® seat for improved seat tightness.
  • Cleaned and packaged for use in oxygen service in compliance with CGA specification G-4.1
Rockwood Swendeman Type RSL-S Safety Relief Valve
Unit of Measure
1 2 3 

Item #

Valve Service

Body Material

Cap Type

Inlet

Outlet

Orifice

770NACC-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 1/2" MNPT N/A 1/2" Female NPT N/A .75 in
770NACD-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 1/2" MNPT N/A 3/4" Female NPT N/A .75 in
770NADD-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 3/4" MNPT N/A 3/4" Female NPT N/A .75 in
770NACE-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 1/2" MNPT N/A 1" Female NPT N/A .75 in
770NADE-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 3/4" MNPT N/A 1" Female NPT N/A .75 in
770NBCE-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 1/2" MNPT N/A 1" Female NPT N/A 1 in
770NBDE-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 3/4" MNPT N/A 1" Female NPT N/A 1 in
770NBEE-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 1" MNPT N/A 1" Female NPT N/A 1 in
770NBCF-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 1/2" MNPT N/A 1 1/4" Female NPT N/A 1 in
770NBDF-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 3/4" MNPT N/A 1 1/4" Female NPT N/A 1 in
770NBEF-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 1" MNPT N/A 1 1/4" Female NPT N/A 1 in
770NCDF-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 3/4" MNPT N/A 1 1/4" Female NPT N/A 1.25 in
770NCEF-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 1" MNPT N/A 1 1/4" Female NPT N/A 1.25 in
770NCFF-NXXX N/A Air/Gas/Liquid Non Code 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
770NCDG-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 3/4" MNPT N/A 1 1/2" Female NPT N/A 1.25 in
770NCEG-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 1" MNPT N/A 1 1/2" Female NPT N/A 1.25 in
770NCFG-NXXX N/A Air/Gas/Liquid Non Code 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
770NDEG-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 1" MNPT N/A 1 1/2" Female NPT N/A 1.5 in
770NDFG-NXXX N/A Air/Gas/Liquid Non Code 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
770NDGG-NXXX N/A Air/Gas/Liquid Non Code 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
770NDEH-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 1" MNPT N/A 2" Female NPT N/A 1.5 in
770NDFH-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 1-1/4" MNPT N/A 2" Female NPT N/A 1.5 in
770NDGH-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 1-1/2" MNPT N/A 2" Female NPT N/A 1.5 in
770NEGH-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 1-1/2" MNPT N/A 2" Female NPT N/A 2 in
770NEHH-NXXX N/A Air/Gas/Liquid Non Code N/A Bronze N/A Plain Cap N/A 2" MNPT N/A 2" Female NPT N/A 2 in
Unit of Measure
1 2 3