Data Sheet

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Bulletin 71.1:Y690A

May 2012

D102592X012

www.sherregulators.com

Y690A Series Pressure Reducing Regulators

W7293

TYPE Y690A

Figure 1. Y690A Series Direct-Operated Pressure Reducing Regulators

W7291

TYPE Y690AH

Features

• Easy Conversion Between Constructions—

Converts easily from the Type Y690A to the

Type Y690AM with two O-rings and one machine screw.

• Sour Gas Service Capability—For sour gas

applications, the Y690A Series regulators are available in

materials that comply with NACE International Standards

MR0175 and MR0103.

• Inlet Pressure Equals Outlet Pressure—Full

inlet pressure capability on the downstream side of

the regulator.

• Corrosion Resistance—Multiple regulator constructions

are available in a variety of materials for compatibility with

corrosive process gases.

• Multiple Applications—The Y690A Series can be used

for a wide variety of gases including air, nitrogen, natural

gas, sour gas, butane, and propane.

Introduction

The Y690A Series self-contained, spring-loaded regulators

(Figure 1) provide economical pressure reducing control

in a variety of commercial and industrial applications.

The Y690A Series design is ideally suited to control gas

supply to in-plant processing equipment. The rugged

casings and sliding pusher post design withstand the full

150 psig / 10.3 bar inlet pressure at both the inlet and outlet

connections. The sliding pusher post design prevents

damage to internal parts if the downstream pressure

exceeds the setpoint. Because these regulators can

withstand the full inlet pressure, a downstream or internal

relief valve is not required to protect the downstream side of

the regulator.

Summary of content (12 pages)

PAGE 1
Bulletin 71.1:Y690A May 2012 Y690A Series Pressure Reducing Regulators W7293 W7291 TYPE Y690A TYPE Y690AH Figure 1. Y690A Series Direct-Operated Pressure Reducing Regulators Features Introduction • E asy Conversion Between Constructions— Converts easily from the Type Y690A to the Type Y690AM with two O-rings and one machine screw.
PAGE 2
Bulletin 71.1:Y690A Specifications Available Configurations Type Y690A: Direct-operated pressure reducing regulator for outlet pressures up to 7-inches w.c. / 17 mbar equipped with a pitot tube. Pressure Registration Types Y690A and Y690AH: Internal Types Y690AM and Y690AHM: External Outlet Pressure Ranges(1) See Table 5 Type Y690AH: Direct-operated pressure reducing regulator for outlet pressures up to 7 psig / 483 mbar equipped with a pitot tube.
PAGE 3
Bulletin 71.1:Y690A valve disk lever Downstream Control Line for Types Y690AM and Y690AHM pitot tube for types Y690A and Y690AH valve stem SLIDING PUSHER POST B2625 INLET PRESSURE overpressure spring OUTLET PRESSURE ATMOSPHERIC PRESSURE Figure 2. Y690A Series Operational Schematic Principle of Operation ranges of each type. These regulators are available in NPS 3/4 and 1 / DN 20 and 25 body sizes with the end connections as shown in Table 1. Refer to Figure 2.
PAGE 4
Bulletin 71.1:Y690A HORIZONTAL PIPELINE VENT POINTED DOWN VENT POINTED DOWN HORIZONTAL PIPELINE DOWNSTREAM CONTROL LINE TYPE Y690AH TYPE Y690AHM B2626 INLET PRESSURE OUTLET PRESSURE ATMOSPHERIC PRESSURE DOWNSTREAM CONTROL PRESSURE Figure 3. Types Y690AH and Y690AHM Actuator Casing Drainage Schematic Table 5. Outlet Pressures and Spring Part Numbers Outlet Control Pressure Ranges Spring PART NUMBER Spring COLOR 1 to 2.5-inches w.c. / 2 to 6 mbar 2.5 to 7-inches w.c.
PAGE 5
Bulletin 71.1:Y690A Table 6. Types Y690A and Y690AM Capacities BODY SIZE OUTLET PRESSURE RANGE, PART NUMBER, AND COLOR OUTLET PRESSURE SETTING 1-inch w.c. / 2.5 mbar 1 to 2.5-inches w.c. / 2.5 to 6.2 mbar 1B558527052 Orange 2.5-inches w.c. / 6.2 mbar NPS 3/4 / DN 20 2.5-inches w.c. / 6.2 mbar 2.5 to 7-inches w.c. / 6.2 to 17 mbar 1B653827052 Red 3-inches w.c. / 7.5 mbar 7-inches w.c. / 17 mbar INLET PRESSURE Capacities in SCFH / nm3/h OF 0.
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Bulletin 71.1:Y690A Table 6. Types Y690A and Y690AM Capacities (continued) BODY SIZE OUTLET PRESSURE RANGE, PART NUMBER, AND COLOR OUTLET PRESSURE SETTING INLET PRESSURE Orifice Size psig bar 1/8 Inches / 3.2 mm 1/4 Inches / 6.4 mm 2 0.14 142 / 3.8 400 / 10.7 5 0.34 245 / 6.6 452 / 12.1 10 0.69 310 / 8.3 1032 / 27.7 1445 / 38.7 1961 / 52.6 20 1.4 452 / 12.1 1200 / 32.2 1703 / 45.6 40 2.8 839 / 22.5 1445 / 38.7 60 4.1 1238 / 33.2 80 5.5 1509 / 40.4 100 6.9 1677 / 44.
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Bulletin 71.1:Y690A Table 7. Types Y690AH and Y690AHM Capacities OUTLET PRESSURE RANGE, CONTROL SPRING PART NUMBER, AND COLOR 5 to 10-inches w.c. / 12 to 25 mbar 1B653827052 Red 7 to 16-inches w.c. / 17 to 40 mbar 1B653927022 Olive drab 15-inches w.c. to 1.2 psig / 37 to 83 mbar 1B537027052 Yellow 1.2 to 2.5 psig / 83 to 172 mbar 1B537127022 Light green OFFSET FROM SETPOINT OUTLET PRESSURE SETTING INLET PRESSURE psig 1-inch w.c. / 2.5 mbar 1-inch w.c. / 2.5 mbar 7-inches w.c.
PAGE 8
Bulletin 71.1:Y690A Table 7. Types Y690AH and Y690AHM Capacities (continued) OUTLET PRESSURE RANGE, CONTROL SPRING PART NUMBER, AND COLOR 2.5 to 4.5 psig / 172 to 310 mbar 1B537227022 Light blue OFFSET FROM SETPOINT OUTLET PRESSURE SETTING INLET PRESSURE psig 2.5 psig / 172 mbar 0.3 psig / 21 mbar 1B537327052 Black 1/4 Inches / 6.4 mm 3/8 Inches / 9.5 mm 1/2 Inches / 13 mm 4 0.28 142 / 3.8 194 / 5.2 310 / 8.3 374 / 10.0 477 / 12.8 0.55 142 / 3.8 361 / 9.7 516 / 13.8 710 / 19.
PAGE 9
Bulletin 71.1:Y690A Table 7. Types Y690AH and Y690AHM Capacities (continued) OUTLET PRESSURE RANGE, CONTROL SPRING PART NUMBER, AND COLOR 15-inches w.c. to 1.2 psig / 37 to 83 mbar 1B537027052 Yellow 1.2 to 2.5 psig / 83 to 172 mbar 1B537127022 Light green OFFSET FROM SETPOINT OUTLET PRESSURE SETTING psig 15-inches w.c. / 37 mbar 5.5-inches w.c. / 14 mbar 1.2 psig / 83 mbar 1.2 psig / 83 mbar 0.2 psig / 14 mbar 2.5 psig / 172 mbar 2.5 to 4.5 psig / 172 to 310 mbar 1B537227022 Light blue 2.
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Bulletin 71.1:Y690A G F D 8.38 / 213 1/2 NPT CONTROL LINE CONNECTION B 14 / 356 A 5.56 / 141 NPT OR SWE 1/4 NPT VENT FLANGED INCHES / mm B2627 Figure 4. Dimensions Table 8. Dimensions DIMENSIONS, iNCHES / mm A Body Size NPS 3/4 or 1 / DN 20 or 25 B D F G Ductile Iron or Stainless Steel Ductile Iron or Stainless Steel 10.12 / 257 1.53 / 38.9 Ductile Iron Stainless Steel Ductile Iron Stainless Steel Ductile Iron or Stainless Steel 4.0 / 102 4.12 / 105 2.12 / 53.8 2.25 / 57.2 6.
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Bulletin 71.
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Bulletin 71.1:Y690A Industrial Regulators Natural Gas Technologies TESCOM Emerson Process Management Regulator Technologies, Inc. Emerson Process Management Regulator Technologies, Inc. Emerson Process Management Tescom Corporation USA - Headquarters McKinney, Texas 75069-1872, USA Tel: +1 800 558 5853 Outside U.S. +1 972 548 3574 USA - Headquarters McKinney, Texas 75069-1872, USA Tel: +1 800 558 5853 Outside U.S.