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CS800 Series Commercial / Industrial Pressure Reducing Regulators

CS800 Series Commercial / Industrial Pressure Reducing Regulators
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CS800 Series Commercial / Industrial Pressure Reducing Regulators - 1

CS800 Series Commercial / Industrial Pressure Reducing Regulators TYPICAL CS800IQ WITH HIGH CAPACITY RELIEF TYPE CS803 REGULATOR WITH TRUE-MONITOR™ PROTECTION Figure 1. Typical CS800 Pressure Reducing Regulator Features and Benefits • Flow Optimized Disks Provide the Maximum Flow for Your Application • Largest Number of Overpressure Protection Offerings in the Industry • Fixed Factor/Pressure Factor Measurement (PFM) Accuracy Capabilities • Only Standard Tools Required for Pressure Adjustment and Orifice Removal • Simplified Maintenance D103140X012 • Wide Variety of Body Sizes and End Connections • Body Materials Available in Gray Cast Iron, Ductile Iron, and Steel

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CS800 Series Commercial / Industrial Pressure Reducing Regulators - 2

Bulletin 71.1:CS800 Specifications The Specifications section lists the specifications for the CS800 Series Regulators. The following information is stamped on the nameplate of CS800 Series: Type Number, Maximum Outlet Pressure, and Spring Range. Available Configurations See Table 1 External Registration Connection 3/4 NPT Body Sizes, Material, End Connection, and Pressure Rating(1) See Table 2 Spring Case Vent and Body Orientation See Figure 19 Token Relief Performance Approximate Token Relief Start-to-Discharge: See Table 5 Maximum Inlet Pressures(1) Emergency: 175 psig / 12.1 bar...

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CS800 Series Commercial / Industrial Pressure Reducing Regulators - 3

Bulletin 71.1:CS800 Specifications (continued) Type TM600 True-Monitor™ Actuator Diaphragm Case, Spring Case, Disk Housing, Diaphragm Upper Retainer, and Diaphragm Plate: Zinc-plated Steel Valve Stem: Aluminum Diaphragm: Nitrile (NBR) Disk holder and Disk Retainer: Brass Disk/Seat Contact: Nitrile (NBR) Monitor Stem: Stainless Middle Diaphragm Retainer: Zinc-plated steel Control Spring: Stainless steel Vent Screen: Stainless steel Vent Retaining Ring: Zinc-plated steel Closing Cap: Aluminum Adjusting Screw: Aluminum O-rings: Nitrile (NBR) Designed, Tested, and Evaluated Consistent With:...

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CS800 Series Commercial / Industrial Pressure Reducing Regulators - 4

Bulletin 71.1:CS800 ADJUSTING SCREW VENT STABILIZER RELIEF SPRING CONTROL SPRING DIAPHRAGM ASSEMBLY VALVE DISK RELIEF VALVE SEAT P1002 VALVE STEM Figure 2. Internal View of CS800 Series with High Capacity Relief Introduction The CS800 Series direct-operated, spring-loaded regulators have been engineered to fit a multitude of commercial and industrial pressure-reducing applications. This flexibility is provided by the numerous body sizes and end connections, outlet pressure settings, orifice sizes, as well as the option for internal or external pressure registration. In addition to...

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CS800 Series Commercial / Industrial Pressure Reducing Regulators - 5

Bulletin 71.1:CS800 Table 2. Body Sizes, Materials, End Connections, and Pressure Ratings BODY MATERIAL BODY SIZE Gray Cast Iron Gray Cast Iron BODY INLET PRESSURE RATING Ductile Iron NPT Gray Cast Iron FACE-TO-FACE DIMENSION 1. Standard on Types CS800, CS820, and CS850. 2. Standard on Types CS803 and CS823. 3. f a ductile iron or steel body material is selected as an optional body for products without an Integral True-Monitor™ Overpressure Protection (OPP) device, the port located at the I bottom of the body will receive an aluminum plug. Table 3. Inlet Pressure Ratings and Flow and Sizing...

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CS800 Series Commercial / Industrial Pressure Reducing Regulators - 6

Bulletin 71.1:CS800 Table 4. Outlet Pressure Ranges TYPE OUTLET PRESSURE RANGE SPRING WIRE DIAMETER SPRING FREE LENGTH COLOR CODE PART NUMBER Brown (Use with LIN Option) Dark Green Green with White Stripe 1. n order to achieve the complete spring range listed, in some applications it may be required to re-orient the actuator/spring case to point downward to utilize the weight of the I internal components. Table 5. Approximate Internal Relief Valve Start-to-Discharge Pressure Above Setpoint INTERNAL RELIEF AND HIGH CAPACITY RELIEF CONTROL SPRING Start-to-Discharge Pressure Range Above...

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CS800 Series Commercial / Industrial Pressure Reducing Regulators - 7

Bulletin 71.1:CS800 Table 6. Secondary Seat™ Outlet Pressures TYPES CS805 AND CS825 CONTROL SPRING SPRING RANGE Secondary Seat Shutoff Pressure(2) Orifice Size Inches Spring Part Number Dark Green Inches w.c. mbar Inches w.c. 1. Downstream pressure buildup with Secondary Seat fixed bleed in operation and regulator relief valve relieving to atmosphere. 2. Outlet pressure values listed are at maximum operating inlet pressure rating per orifice. 3. If the outlet pressure rises above setpoint exceeding the pressure rating of the regulator, the internal parts must be inspected and replaced if...

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CS800 Series Commercial / Industrial Pressure Reducing Regulators - 8

Bulletin 71.1:CS800 Table 8. Types CS803 and CS823 Regulator and Integral True Monitor™ Outlet Pressure Ranges with Token Relief PRIMARY REGULATOR Type Setpoint Inches w.c. mbar 4 INTEGRAL TRUE MONITOR Spring Range Spring Part Number Setpoint Spring Color Inches w.c. mbar Spring Part Number Spring Color Dark Blue Dark Blue Dark Green Spring Range Black Orange Black Table 9. Disk Color Selection TYPE BODY SIZES Dark Gray Gray Cast Iron Gray Cast Iron Ductile Iron, WCC Steel DISK ASSEMBLY PART NUMBER BODY MATERIAL DISK COLOR PRESSURE REGISTRATION Gray Cast Iron 1. The 3.5 to 30 inches w.c. /...

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CS800 Series Commercial / Industrial Pressure Reducing Regulators - 9

Bulletin 71.1:CS800 Principle of Operation and Overpressure Protection Types CS800, CS820, and CS850 Base Regulator Operation Refer to Figures 3 and 4. When downstream demand decreases, the pressure under the diaphragm increases. This pressure overcomes the regulator setting (which is set by the regulator control spring). Through the action of the pusher post assembly, lever, and valve stem, the valve disk moves closer to the orifice and reduces gas flow. If demand downstream increases, pressure under the diaphragm decreases. Spring force pushes the pusher post assembly downward, the valve...

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CS800 Series Commercial / Industrial Pressure Reducing Regulators - 10

Bulletin 71.1:CS800 Types CS805 and CS825 with Secondary Seat™ Protection Refer to Figure 6. The Type CS805 provides Secondary Seat Protection. As downstream demand decreases and downstream pressure rises to the regulator pressure lockup value, the regulator will lockup. If, however, damage has occurred to the primary disk, to the primary orifice seating surface, or debris has become lodged between the primary disk and primary orifice, the outlet pressure will continue to rise. This additional pressure causes the primary disk to apply additional force to the orifice seating surface, which...

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