Continental NH3 SF-OV User manual

Brand: Continental NH3

Model: SF-OV

Type: User manual

CONTINENTAL NH3 PRODUCTS

INSTALLATION, OPERATION, REPAIR AND MANTINANCE INSTRUCTIONS

PRODUCT SERIES: A-SF-OV

ATTENTION: Please follow all of the instruction in this manual carefully and read the entire manual completely,

failure to do so may cause the product to function improperly or fail causing serious injury or death.

DANGER DANGER

ANHYDROUS AMMONIA IS AN INHALATION HAZARD AND WILL CAUSE SERIOUS INJURY OR

DEATH. PLEASE USE EXTREME CAUTION WHEN HANDLING IT OR PERFORMING ANY

MAINTENANCE ON EQUIPMENT USED FOR ANHYDROUS AMMONIA.

ATTENTION: Before performing any installation, repair or maintenance please follow the instructions below.

1. You must be certified to work with anhydrous ammonia. If you are not please seek out the appropriate

agricultural department to attend a class to obtain the proper certification.

2. Wear appropriate safety goggles, gloves and breathing apparatuses.

3. Drain all tanks, hoses and piping of anhydrous ammonia COMPLETELY before removing, installing, performing

maintenance or repairing any equipment.

4. Always remove device from service before performing any maintenance or repair

5. have sufficient water near by

6. Obey all local, state and federal laws regarding the handling of anhydrous ammonia

INSTALLATION & OPERATION

1. This product is designed to be installed into an ammonia flow control system that requires a heat exchanger with

orifices that control the amount of cooling ammonia being communicated back to the heat exchanger.

2. Install a 1/4" SCH 80 seamless nipple into the inlet and a 1/4” X 3/8” full flow hose barb into the outlet of the A-

SF-OV as shown in the photo below.

OUTLET BACK TO HEAT EXCHANGER

3. Install the A-SF-OV into the control unit by threading the 1/4" nipple into the ammonia stream after the primary

shut off valve or after the fast valve. Usually this is a tee but not necessarily. In stall 3/8” hose back to heat

exchanger. See photo below.

INLET FROM

MAIN FLOW

MAIN FLOW IN

MAIN FLOW OUT

3/8” BACK TO HEAT

EXCHANGER

INSTALLATION, OPERATION, REPAIR AND MAINTENANCE INSTRUCTIONS

4. Determine what orifice size you desire A, B, C or D. A being the smallest for low rates and C being large for

higher rates. The D orifice is for N-serve users to help reduce crystallization.

A = 1 - 10 GPM

B = 11 – 20 GPM

C = 21 and up GPM

5. To set or change the orifice size loosen the wing nut slightly then turn the orifice disk to the desired orifice letter

buy looking into the orifice view hole then tighten the wing nut firmly. See photo below.

MAINTENANCE

1. If product leaks between the bodies install a repair kit A-SFOV-RK

2. If product leaks from the pipe threads remove and put pipe thread sealant and reinstall.

REPAIR

1. Remove valve from service by following the above ATTENTIONS AND CAUTIONS.

2. Remove wing nut and separate the bodies and replace the o-rings and reinstall back to service.

QUESTIONS CALL 800-537-5642

SIGHTHOLE

ORIFICE DISK

WING NUT

Continental NH3 SF-OV User manual

Continental NH3 SF-OV User manual

Continental NH3 SF-OV User manual

Related papers

Other documents