Bulletin 71.4:SR8D103106X012May 2010 Optional T-Handle Available Wide Control Range Self-Draining Easy Maintenance Tight Shutoff Superior

Bulletin 71.4:SR810Table 6. Air Capacities (continued)SPRING RANGE,PSIG (bar)SET PRESSURE,PSIG (bar)CAPACITIES IN SCFH (Nm3/h) OF AIR AT % BUILD-UPEl

Bulletin 71.4:SR811Table 6. Air Capacities (continued)SPRING RANGE,PSIG (bar)SET PRESSURE,PSIG (bar)CAPACITIES IN SCFH (Nm3/h) OF AIR AT % BUILD-UPEl

Bulletin 71.4:SR812Table 7. Steam CapacitiesTable 7. Steam Capacities (continued)SPRING RANGE,PSIG (bar)SET PRESSURE,PSIG (bar)CAPACITIES IN POUNDS

Bulletin 71.4:SR813Table 7. Steam Capacities (continued)Table 7. Steam Capacities (continued)SPRING RANGE,PSIG (bar)SET PRESSURE,PSIG (bar)CAPACITIE

Bulletin 71.4:SR814Table 7. Steam Capacities (continued)SPRING RANGE,PSIG (bar)SET PRESSURE,PSIG (bar)CAPACITIES IN POUNDS PER HOUR (kg/h) SATURATED

Bulletin 71.4:SR815Table 8. Liquid Capacities (continued)SPRING RANGE,PSIG (bar)SET PRESSURE,PSIG (bar)CAPACITIES IN GPM (l/min) WATER AT % BUILD-UPE

Bulletin 71.4:SR816Table 8. Liquid Capacities (continued)SPRING RANGE,PSIG (bar)SET PRESSURE,PSIG (bar)CAPACITIES IN GPM (l/min) WATER AT % BUILD-UPE

Bulletin 71.4:SR817SPRING RANGE,PSIG (bar)SET PRESSURE,PSIG (bar)CAPACITIES IN GPM (l/min) WATER AT % BUILD-UPElastomer Diaphragm Metal DiaphragmNPS 3

Bulletin 71.4:SR818Figure 3. DimensionsD (MAXIMUM)GACJOPTIONAL T-HANDLESIZE, NPS (DN)DIMENSIONS, INCHES (mm)A C D G J1/2 (15) 3.00 (76) 5.11 (130) 7

Bulletin 71.4:SR819Product Ordering GuideBody Size (Select One) ¨ NPS 1/2 (DN 15)**  ¨ NPS 3/4 (DN 20)**  ¨ NPS 1 (DN 25)** ¨ NPS 1-1/2 x 1 (D

Bulletin 71.4:SR82Figure 2. Type SR8 Operational SchematicINLET PRESSUREOUTLET PRESSUREATMOSPHERIC PRESSUREFeatures  •  Nonporous Polished Body and I

Bulletin 71.4:SR8The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners

Bulletin 71.4:SR83SpecicationsBody Size, Inlet and Outlet Connection NPS 1/2, 3/4, 1, 1-1/2, 2 and 3 (DN 15, 20, 25, 40, 50 and 80)Service MediaAll

Bulletin 71.4:SR84Table 2. Temperature CapabilitiesSEAT TYPE DIAPHRAGM MATERIAL O-RING MATERIAL TEMPERATURE RANGE, °F (°C)Metal (316L)Ethylenepropyle

Bulletin 71.4:SR85Capacity DataThe capacity information on the following pages is based on four buildup factors, 10, 20, 30, and 40 percent. Buildup

Bulletin 71.4:SR86Table 5. Cv CoefcientsSPRING RANGE,PSIG (bar)SET PRESSURE,PSIG (bar) CV AT % BUILD-UPElastomer Diaphragm Metal DiaphragmNPS 1/2 (D

Bulletin 71.4:SR87Table 5. Cv Coefcients (continued)SPRING RANGE,PSIG (bar)SET PRESSURE,PSIG (bar) CV AT % BUILD-UPElastomer Diaphragm Metal Diaphra

Bulletin 71.4:SR88Table 5. Cv Coefcients (continued)SPRING RANGE,PSIG (bar)SET PRESSURE,PSIG (bar)CV AT % BUILD-UPElastomer Diaphragm Metal Diaphrag

Bulletin 71.4:SR89Table 6. Air Capacities (continued)SPRING RANGE,PSIG (bar)SET PRESSURE,PSIG (bar)CAPACITIES IN SCFH (Nm3/h) OF AIR AT % BUILD-UPEla