Con Forms hose inspection checklist will ensure you are hitting all the marks when inspecting your hose.
SIZE & PRESSURE RATING Per the industry's ASME safety standard, the pipeline components must withstand a static pressure of at least two times its rated working pressure. Select your clamps based on the end style of your delivery system, and the maximum pressure ratings of the pump that will be used. 1 & 2-BOLT CLAMPS Easy to use but require tools to open and close them. This style clamp is used in areas where the delivery system may be set up for an extended time, such as a high-rise job site. ADJUSTABLE & NON-ADJUSTABLE SNAP CLAMPS These clamps can have a solid or adjustable link on the handle linkage. These clamps can be installed and removed quickly. They are often chosen for applications where the line may need to be frequently disconnected or moved. WEDGE-STYLE CLAMPS Often used on concrete boom truck backends. These clamps are designed to be operated by using a hammer to strike a wedge pin. The wedge on this clamp also has a hole in it for a safety pin to be inserted. This safety pin must be in place to help prevent the wedge pin from becoming disengaged while in use. Always wear proper PPE when assembling pumping components: gloves, safety helmet and eye protection. Clean any concrete or debris from the clamp halves. Adjustable snap clamp eyebolts, nuts and safety pin hole must be clean. On bolt-together clamps: the bolts and nuts should be free of dirt or concrete, and the threads undamaged. Clamps should be inspected when installed to confirm they are fully engaged. On bolt-together clamps, the bolts must be tightened to the recommended torque value. Contact the manufacturer for the specifications on your clamps. Snap clamps should be observed on the side where the clamp comes together to verify the gap has been minimized. Wedge-style clamps need to be hammered down far enough to make sure the gap in the clamp halves is minimized, as well as have a safety pin inserted into the wedge. Safety Pins must be installed on all snap and wedge couplings to prevent accidental disengagement. Confirm the system is not under pressure prior to removing any safety pins or loosening any bolts on system couplings.
SELECT THE RIGHT COUPLING
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JOB SITE COUPLING SAFETY
Contact the manufacturer with any questions and for maintenance practices to get the most from your components.
Daily coupling inspections should be done before and after each use in conjunction with the pipes, elbows and hoses.
COUPLING INSPECTION GUIDE
Closely examine the inside and outside of both clamp halves for cracks, excessive wear or gaps at the point the clamp engages the delivery system. Common locations for coupling cracks include the hinge of snap clamps and through the base of the side flange.
Check for dents or distortion of the coupling due to excessive hammering of the coupling components.
Inspect for wear on the surfaces that mate with the pipeline component being coupled. Check for cracks in both the pipe/hose ends that are being coupled. Ensure that weld ends and hose ferrules are clean and free of cracks at their point of attachment.
Look for evidence of external damage (dents, cracks, gaps) or misalignment.
Verify the gasket is not visibly protruding from the clamp.
Check for evidence of mortar leakage that could indicate a damaged coupling or gasket.
FOR SNAP/ADJUSTABLE CLAMPS Ensure the safety pin can be inserted without bending or obstruction. Verify the housing and locking handle have not loosened, distorted, bent, or become damaged in any way. If adjustable, check the condition of the adjusting nut threads for damage or looseness Improper adjustment – excessive force to close a coupling places added stress on both the coupling and pipe ends to which it is attached FOR WEDGE-STYLE CLAMPS The wedge must not be flattened on the head. If the head of the clamp is “mushroomed out”, it can cause a hazard with metal flying off the wedge pin when struck with a hammer.
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