PRODUCT DATA SHEET Internationally accepted, and specified, by oil companies around the world to assist with the safe conveyance of petroleum-based products, the Emco Wheaton range of manhole covers offers unrivalled safety features and operational benefits. F0337/ F0338| 16” Manhole Cover F0337/F0338 | F0337 Left handed variant Steel cover arm exceeds Australian DROP test ( AS 2809-2-1990) Emergency fire engulfment venting to NTTC DOT 406 * * APPROVALS FEATURES AND BENEFITS Pressure and vacuum vent fitted as standard for tank breathing. Various ratings are available to suit operational requirements. Two vents may be fitted if required. Spring-loaded fill cap provides emergency fire engulfment venting to NTTC DOT 406, required in the event of the tank being exposed to a fire. Emergency venting capacity 7000 m3/ h air at 350 mb. Automatic sealing of the P/V vent in a roll over situation prevents dangerous and costly spillage. Steel cover arm exceeds the requirements of the Australian DROP test (AS 2809-2-1990). Aluminium cover arm is also available on some variants. Self-aligning seal ensures pressure tight operation at all times. Two-stage opening allows safe release of residual compartment pressure before fully opening fill cap. Secure 24-bolt fixing. 250 mm (10”) fill hole for easy drop pipe insertion when top loading. Lightweight aluminium baseplate for increased payloads. High quality die cast baseplate and fillcap, to international standards, are used for durability and performance. Low profile design minimises roll over protection requirements. Lockable options use a standard F0053 key. Two accessory ports for either dip-tube mandrel, over-spill prevention probe or an additional P/V vent. * * * * * * * * * * * * * * * WHEN SPECIFYING F0337/F0338 MANHOLE COVERS FOR YOUR VEHICLE, THE FOLLOWING POINTS SHOULD BE CONSIDERED: Ensure 16“ manhole covers are suitable for the orifice in the tank top, i.e. a 16“ (410 mm) diameter hole. Which P/V vent rating and arrangement is required? Which material of cover arm is required; plated steel or cast aluminium? Remember to specify the F0053001 Manhole Cover Key if you have specified a lockable variant. Do you require left or right hand (this refers to the orientation of the accessory ports)? * * * * *
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