447 Sprayer Parts Sprayer Parts www.WylieSprayers.com Construction – Special neoprene tube with nylon or stainless steel reinforcement for maximum safety. Minimum Burst – 1,750 lbs. Oil and weather-resistant, pin-pricked black cover, continuous brand showing anhydrous ammonia hose 350 pounds maximum working pressure and date of manufacture, 6 year warranty on nylon hose, 6 year warranty on ss hose. Caution – Apache recommends the use of strain relievers or spring guards in severe bending applications. Anhydrous Ammonia Hose CARE AND MAINTENANCE OF ANHYDROUS AMMONIA HOSE IMPORTANT — READ CAREFULLY All new hose assemblies should be tested prior to use to determine if they have been damaged in storage or shipment. When anhydrous ammonia hose is subjected to ordinary use it should be tested every 90 days for the first year and once a month thereafter. Hose subjected to severe usage – for example, dragged over sharp rock surfaces, or sharply bent in storage, or continually exposed to weather – will deteriorate more rapidly than carefully handled hose. Severely used hosed should be tested monthly from date of installation. The hose should be visually inspected each day either before or after the day's use. Hose assemblies should also be tested immediately after the hose is subjected to abnormal abuse such as: severe end pull, flattening or crushing by vehicles, or sharp kinking when cold. Any hose that has been recoupled should be proof-tested and inspected before being placed in service. All physical testing should be performed with the hose at room temperature. An inspection card should be maintained which describes each hose, the manufacturer, date received, purchase order number, date of installation, and the examinations. TEST PROCEDURE Lay out the full length of the hose in a clean and preferably dry area. Inspect the outside cover of the hose for blistering, excessive abrasion or cuts, and coupling slippage. This inspection will be made when the hose is not under pressure. 1. Cuts in hose cover which expose or damage the reinforcement are cause for replacement. Small cuts, nicks, or gouges in the cover which do not go completely through the cover will not be cause for replacement. Hose Above reprinted from RMA/IP 11-12, Revised 1980. ** Warning ** Anhydrous ammonia is extremely volatile-and poisonous-in both liquid and gaseous states. Improper hose application may lead to life-threatening situations-poisonous gas leakages, fires, or explosions. DO NOT USE ANHYDROUS AMMONIA HOSE FOR LP GAS APPLICATIONS! DO NOT USE LP GAS HOSE FOR ANHYDROUS AMMONIA APPLICATIONS! strength is controlled by the plies of reinforcement, and for this reason, damage in this area cannot be tolerated. 2. Damage to the textile or wire braid is cause for hose replacement. 3. Blistering or loose outer cover is cause for hose re- placement. 4. Examine couplings for slippage. Slippage is evi- denced by the misalignment of the hose and coupling and/or the scored or exposed area where slippage has occurred. Any evidence of slippage is cause for hose replacement or recoupling and retesting. After visual inspection, connect hose which has met these standards to a test pump capable of producing 700 psi (4.8 MPa). Where bolt clamp type fittings are used, the clamps should be tightened before proof-testing. Fit the opposite end with a quick opening valve. Be sure all connections are tight and then introduce water into the hose through the pump. At the same time, elevate the outlet end with the outlet valve open to bleed off air. When all the air has been expelled, close valve and proceed with the test. Place hose in a straight line and raise the pressure to 200% of working pressure recommended by the hose manufacture. Contact with Anhydrous Ammonia will burn skin, and is especially damaging to the eyes and lungs. This is true for its liquid and gaseous (vapor) state. Examine the hose for leaks, especially near the cou- plings. Also look for any noticeable bulging or swollen areas. Any hose with leaks or bulging spots should be replaced or the affected area cut out and those recoupled. The hose should have been held at pressure for a mini- mum of five minutes.
