Heavy Duty Balanced Opposed Compressors - Ariel Corporation

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FOR MODELS: JGZ AND JGU SECTION 2 - COMPRESSOR INSTALLATION Vents and Drains It is critical, for the safe operation of the compressor, to be sure that all vents and drains are open, functional and, if necessary, tubed off of the skid or out of the building to a safe atmosphere. The venting of gases and vapors, and the disposal of drained fluids should be environmentally safe. Depending upon your climate and insect population it can be necessary to install screens over the vents and drains to be sure that they do not become blocked. This can be essential if the compressor is shutdown for a long period of time. Some other points are: 1. A blow-down vent must be provided to safely relieve pressure from the system for maintenance purposes. Any vent or blowdown line connected to a common vent or flare header must have a back-flow prevention check valve. 2. Adequate vents and drains will be provided for the distance piece, and primary packing vent. Primary vents and drains shall be independently vented from the secondary vents and drains. All vents and drains shall be installed in such a manner as to prevent the collection of liquids that could cause the build-up of either gas or liquid. When a heavier than air gas is involved, vent and drain design must be accommodating. 3. When the crankcase breather is mounted remotely, the piping must be configured so there is no back pressure and so condensation in the piping does not drain into the crankcase. BICERA Type Crankcase Over-Pressure Relief Valves <strong>Compressors</strong> supplied with optional BICERA type valves, are shipped with standard solid crosshead guide covers installed to provide a 100% seal and prevent any exchange of atmosphere during shipping or storage. The BICERA valves are boxed and shipped separately. The BICERA valves are to be installed on the compressor crosshead guides just prior to startup. • A valve may be placed on any throw by replacing a standard crosshead guide cover, except when one valve per throw pair is supplied, then each pair of throws is to have a valve. • Replacement paper gaskets are provided, if needed. Before installing the valves, apply an anti-seize lubricant to both sides of new gasket surfaces, when replacement gaskets are needed. This will ease future removal. • Tighten cap screws hand wrench tight. • The crosshead guide covers which are replaced with BICERA relief valve assemblies, may be put into the customer’s parts inventory or scrapped as desired. PAGE 2 - 10 7/09
FOR MODELS: JGZ AND JGU SECTION 2 - COMPRESSOR INSTALLATION Distance Piece and Packing Illustrations: Top View Crosshead Guide Side View Bottom View Oil Wiper Gland Piston Rod Oil Wiper Packing Lifting Eyebolt Distance Piece Drain - Tube Off of Skid or Out of Building Packing Lubrication Line from Distribution Block Distance Piece Atmospheric Vent Distance Piece Atmospheric Vent Cylinder/Head Attachment Flange Spiral Wound Gasket Piston Rod Pressure Packing Case Primary Packing Vent/Drain - Tube Off of Skid and to a Safe Atmosphere Unlabeled Connections are Option Connections FIGURE 2-2 SINGLE COMPARTMENT DISTANCE PIECE - PACKING, TUBING & VENTING - TYPICAL 7/09 PAGE 2 - 11
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Heavy Duty Balanced Opposed Compressors - Ariel Corporation

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