Cla-Val


	Basic Valves - The Cla-Val Hytrol valve is a hydraulically operated, diaphragm actuated globe, or angle pattern valve. It consists of three major components: the body, diaphragm assembly, and cover. The diaphragm assembly is the only moving part. The Cla-Val Hytrol is used as the basic valve in almost all Cla-Val Petroleum valves. It is used in every type of piping system requiring remote control, pressure regulation, solenoid operation, rate of flow control, liquid level control, or check valve operation. Available in various materials and in a full range of sizes, either screwed or flanged ends, its applications are unlimited.
	Pressure Reducing Valves - The Model 90AF-4 maintains a relatively constant downstream pressure regardless of changes in the flow rate. They are designed to close relatively quickly when downstream pressure rises above selected control pressure. The rapid closing of the 90AF-4 minimizes over pressurization in the downstream piping in areas where it is impractical to install a relief valve. When flow rate changes are slight the reducing control pilot operates the valve. When sudden stoppages occur, a relief control pilot takes over to cause the main valve to close quickly. A flow control device is used in the pilot system to permit adjustment of the opening speed.
	Pressure Relief Valves - The Model 50AF-2 Surge and Pressure Relief Valve is a diaphragm-type valve designed to maintain constant upstream pressure to close limits. This valve is a hydraulically-operated, pilot-controlled, modulating type. It is used where problems are encountered in pressure relief, sustaining back pressure, or in unloading functions in a by-pass system. In operation, the valve is actuated by line pressure through a pilot control system, opening fast to maintain steady line pressure but closing gradually to prevent surges. Operation is completely automatic, and pressure settings may be easily changed.
	Rate of Flow Controller Valve - The Model 40AF-2C Rate of Flow Control and Fuel Shut-Off Valve limits the flow to a pre-set maximum and also closes quickly in response to a signal from the Float Control of a Fuel-Water Filter/Separator. It is a hydraulically-operated, pilot-controlled, diaphragm-type, globe valve. Should the diaphragm become damages the valve will close tight, providing "fail safe" operation. The rate of flow control pilot is actuated by differential pressure produced across a calibrated stainless steel orifice plate installed at the valve inlet. The flow rate setting is adjustable from 90 percent to 112 percent of rated capacity of the Filter/Separator. This valve has an accuracy of plus or minus 5 percent of the adjusted rate setting. An auxiliary 3-way diaphragm control pilot provides immediate response to operating pressure signal from the Float Control.
	Single Stage Electric Loading - The Model 71 Series single-stage electric loading valves are a series of solenoid valves designed for use on key lock or card loading systems where top-off of the product is manually controlled by the operator. The valves operate to prevent delivery of the product until all electric components of the lock-out system are properly set, and a positive accurate shut-off of product at the end of the loading cycle. The Model 71 Series are also used as storage tank block valves operating in conjunction with pumps delivering product from the tank. While product is not being delivered they maintain a positive shut-off at storage tank inside the firewall area.
	Two-Stage Electric Loading - The Model 72 Series Two-Stage Electric Loading Valves are a series of solenoid valves designed for use with meters providing a positive shut-off of fluid flow after a predetermined amount of product has been metered. This series includes specific valves to meet the varied demands of the many kinds of fluid dispensing systems. The most common usage for these valves is with meters having a dual switch head. The first switch shifts the preset valve from high flow rate to a low flow rate. The second switch produces final shut-off which is positive, permitting precise control of the amount of product dispensed.
	Non-Surge Check -The Model 81AF Non-Surge Check Valve is installed on the discharge side of the refueling pump. It automatically prevents reverse flow and opens at a controlled rate to keep pump starting surges from shocking downstream equipment. The valve is controlled by a pilot control system with a flow control valve which permits adjustment of the valve's opening rate. Auxiliary check valves in the pilot system apply downstream pressure to the main valve cover chamber for rapid closing the instant a pressure reversal occurs.
	High Level Shut-Off - The 129AF-1 High Level Shut-Off Valve automatically opens to fill a storage tank and closes tightly when liquid level reaches a predetermined point. No attention is required once adjusted to the desired level. It is a hydraulically-operated, diaphragm-actuated, pilot-controlled globe pattern valve. Should the diaphragm become damaged the valve will close tight, providing "fail safe" operation. The 129AF-1 is controlled by a CFM2 float actuated pilot mounted near the high level shut-off point in the tank. The float pilot control is a precision lapped plate type valve actuated by a float attached to a lever arm.
	Solenoid Control Valve - The Model 134AF-5 Valve is controlled by a solenoid and is operated hydraulically by line pressure. The pilot control is a normally closed, explosion proof solenoid valve which is energized to open. It is fitted with a manual actuator to permit operation in an emergency. The Model 134AF-5 is completely self-contained; no external connections are necessary other than the electric conduit to the solenoid pilot control.