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64 and 67C Series Regulators Instruction Manual

64 and 67C Series Regulators Instruction Manual
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64 and 67C Series Regulators Instruction Manual - 1

Instruction Manual Form MCK-2133 January 2010 64 and 67C Series Regulators Instruction Manual ! Failure to follow these instructions or to properly install and maintain this equipment could result in an explosion and/or fire causing property damage and personal injury or death. Fisher® equipment must be installed, operated, and maintained in accordance with federal, state, and local codes and Emerson Process Management Regulator Technologies, Inc. instructions. The installation in most states must also comply with NFPA No. 54 and 58 standards. Only personnel trained in the proper procedures, codes, standards, and regulations of the LP-Gas industry should install and service this equipment. THINGS TO TELL THE GAS CUSTOMER: 1. Point out the regulator’s vent to the customer (or vent assembly or vent tube), and stress that this opening must remain unobstructed at all times. Tell the customer to be sure to check the vent opening after a freezing rain, sleet storm, or snow to make sure ice has not formed in the vent. Show the customer the shutoff valve on the container. The customer should close this valve immediately if gas is smelled, appliance pilot lights fail to stay on or appear higher than usual, or any other abnormal situation occurs. Figure 1. 64 and 67C Series Regulators 3. Tell the customer to call your company to service the regulator if the regulator vents gas or a leak develops in the system. Only a qualified gas service person should install or service the regulator. Do not use the 67C, 64, or 64SR Series regulators in anhydrous ammonia (NH3) service. They contain brass materials that are not compatible with anhydrous ammonia (NH3). Table 1. Available Configurations Scope of the Manual TYPE 64 64SR Description The 64 and 67C Series direct-operated regulators (Figure 1) are designed for high-pressure (pounds per square inch) service and can be used on either vapor applications in LP-Gas, Natural Gas, and Air or liquid LP-Gas applications. Depending upon type, outlet pressure ranges from 3 to 135 psig (0,21 to 9,3 bar). Type 64SR can be used as a First Stage LP-Gas regulator–reducing tank pressure to 10 psig (0,69 bar) for a Second Stage regulator. Type 64KB is the only regulator in this series suitable for anhydrous ammonia (NH3) service. The regulators are normally painted red. DESCRIPTION Basic regulator with four spring ranges from 3 to 100 psig (0,21 to 6,9 bar). Internal relief version with three spring ranges from 3 to 35 psig (0,21 to 2,4 bar). For use with anhydrous ammonia (NH3) with handwheel adjustment and five spring ranges from 3 to 100 psig (0,21 to 6,9 bar). Includes a special diaphragm protector. Basic regulator with wrench adjustment and four spring ranges from 3 to 135 psig (0,21 to 9,3 bar); no relief. Basic regulator with handwheel adjustment. Basic regulator with dial cap adjustment. Basic regulator, factory set with no field adjustment. This manual provides instructions and maintenance for the following high-pressure regu

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64 and 67C Series Regulators Instruction Manual - 2

64 and 67C Series Regulators Specifications Body Sizes, Inlet and Outlet Connection Style 64 Series: 1/2-inch NPT, inlet and outlet 67C Series: 1/4-inch NPT, inlet and outlet Side Outlet Connection Style (Plugged) 1/4-inch NPT; pressure gauge can be installed Maximum Inlet Pressure (Body Rating)(1) 250 psig (17,2 bar) Spring Case Vent Location 64 Series: 1/4-inch NPT screened over side outlet tap 67C Series: Aligned with inlet, other positions optional Maximum Emergency Outlet Pressure 64 Series: 220 psig (15,2 bar) 67C Series: 50 psig (3,4 bar) over outlet pressure (1) Approximate Unit...

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64 and 67C Series Regulators Instruction Manual - 3

from collecting moisture, corrosive chemicals, or other foreign material) orient the vent to the lowest possible point on the spring case or point it vertically down, or install the regulator under a protective cover so that it is protected from the elements. Inspect the vent hole regularly to make sure it is not plugged. Spring case vent hole orientation may be changed by rotating the spring case with respect to the body. A 1/4-inch threaded NPT spring case vent may be remotely vented by installing obstruction-free tubing or piping into the vent. Protect the remote vent by installing a...

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64 and 67C Series Regulators Instruction Manual - 4

adjustable, is adjusted by loosening the locknut, if used, and turning the adjusting screw or handwheel clockwise to increase or counterclockwise to decrease the outlet pressure setting. Re-tighten the locknut to maintain the adjustment position. Failure to do the following could result in personal injury or property damage. Visually inspect the regulator each time a gas delivery is made for: 1. Improper installation; 2. Plugged or frozen vent; First, close the nearest upstream block valve and then close the nearest downstream block valve (when used). Next, open the downstream vent...

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