INSTALLATION NOTES – BILLABONG HYDRAULIC RAMS
To be read in conjunction with the Billabong Hydraulic Water Ram published brochure for this product.
1. THE RAM BASE
The Ram must be securely fixed to a solid base. The critical factors are:
- The Ram must be permanently attached to the base to prevent any movement when in operation
- The base of the Ram must be level
- Ram foundation requirements:
> Concrete block of minimum thickness of 150mm is recommended but a heavier block of concrete may be required depending on soil condition to ensure the base itself cannot move (Sleepers are a less preferred option)
> Large rocks are occasionally available at installation sites and as long as level fixing can be obtained, provide a good base
> Installation of hold down bolts (Loxsons, Dynabolts and etcetera) through Ram legs will secure the device to the Ram
2. CONNECTING RAM PIPES AND ACCESSORIES
Details for installation of the Drive Pipe (Inlet side), Delivery Pipe (Outlet side) and Gate Valve (Inlet side) are provided in our technical leaflet. It is also recommended installation of a Check Valve (Non-return Valve) in the delivery Pipe, just at the Ram outlet and be connected directly via Pipe fittings to the Ram Delivery flange.
A long Drive Pipe will require support at intervals along its length to reduce vibration. Weight of Pipes must not be supported by the Ram flange connections. To minimise vibration impact of the Ram on Pipes whilst in operation, it is recommended to use Galvanised Pipes for the last 6m sections.
3. STARTING THE RAM
To start the Ram operating, open the Gate Valve in the Drive Pipe and hold down the Ram Impetus Valve. Water will discharge to waste from the top of the Impetus valve area. Allow the Impetus Valve (Part No. 33) to rise after a few seconds. The Ram should continue to operate after this procedure is repeated a few times. If the Ram operation is not achieved at this point, the Impetus Valve stroke should be adjusted and the procedure repeated.
4. RAM STROKE ADJUSTMENT
The Impetus Valve Stroke adjustment is achieved through moving the position of the Adjusting Nut (Part No. 30) and the corresponding Flanged Lock Nut (Part No’s. 28, 29) on top of the Impetus Valve Cage (Part No. 32).
The need to adjust the Impetus Valve Stroke relates to the volume of water input which varies from one site installation to another. The objectives are:
- To achieve the longest possible stroke consistent with continuing operation, therefore if the Ram does not continuously operate at the selected adjustment, slight shortening of the Stroke must be made
- With the assistance of the temporary Pressure Gauge (0-150 psi) installed at the top of the Dome, set up the Ram operation for optimum operation (usually towards the higher Dome pressure)
- Two flanged Nuts are provided on the Impetus Valve Stem for the installation of additional weight on the Stem to compensate for varying conditions encountered during the installation (usually large lead washers with a hole in the middle for placement on the Stem shaft). Rams operating with a high lift will most likely require the addition of some weight
- Once the Ram optimum Stroke operation is determined, the Adjusting Nut (Part No. 30) must be secured by locking the Adjusting Nut into this position with the below located Adjusting Nut Lock Nut (Part No. 31)
5. DRIVE PIPE FALL INTO RAM
Should the Drive Pipe fall be insufficient, the quantity of discharged water will be very small. If the Drive Pipe fall is too great, then exaggerated wear will occur between the Impetus Valve and Cage Seats due to the excessive “hammering” between these parts. This will result in excessive wear and tear and a need for frequent early replacement of both the Impetus Valve and the Cage.
For details of Ram correct operating site parameters please refer to our Technical Leaflet.
6. INSTALLATION OF A SNIFTER PLUG (Part No. 35)
Correct operation of the Ram requires installation of the Snifter Plug (part of supply with each Ram sale). The purpose of the Snifter Plug is to ensure the continuous supply of Air into the Ram Dome during the the Ram’s operation.
The Snifter Plug is required to be installed at the Delivery Pipe entry point of the Ram (as close as possible). For Snifter Plug installation details please refer to our Technical Leaflet.
7. PREVENTION FOR ENTRY OF FOREIGN PARTICLE INTO RAM
The Ram will work reliably when no foreign particles are able to enter the inside of the Ram Dome. The usual practice is to install an oversized heavy duty galvanised Strainer at the beginning of the Drive Pipe. It is also recommended that a number of Mesh layers (with fine gauze) are placed over the Strainer to improve the filtration capability.
8. RAM PROTECTION FROM FLOODING
To avoid a potential “Ram wash away” situation during excessive floods, the Ram should also be suitably secured in flood prone areas with a heavy duty chain.
9. NOISE GENERATED DURING RAM OPERATION
The operation of the Ram is distinctive and generates a “clanking” noise from the Ram’s Stroking. In areas where such noise would be considered a nuisance, we recommend construction of a small shelter with attenuating lining to be installed on the inside of the shelter.