Installation and Operation Manual X-VA-8503-eng Part Number: 541B087AHG March, 2008 NRS* Needle Control Valves Models 8503, 8504, 8513 & 8514 Model 8504 Straight Pattern Needle Valve Model 8513 Angle Pattern Needle Valve with Numerical Handle
Installation and Operation Manual Needle Control Valves Models 8503 and 8504 X-VA-8503-eng Part Number: 541B087AHG March, 2008 Essential Instructions Read this page before proceeding! Brooks Instrument designs, manufactures and tests its products to meet many national and international standards. Because these instruments are sophisticated technical products, you must properly install, use and maintain them to ensure they continue to operate within their normal specifications.
Installation and Operation Manual X-VA-8503-eng Part Number: 541B087AHG March, 2008 Contents Needle Control Valves Models 8503 & 8504 Paragraph Page Number Number Introduction Section 1 1-1 Description ..................................................................................................................................... 1-1 1-2 Specifications ..................................................................................................................................
Contents Installation and Operation Manual Needle Control Valves Models 8503 & 8504 THIS PAGE WAS INTENTIONALLY LEFT BLANK ii X-VA-8503-eng Part Number: 541B087AHG March, 2008
Installation and Operation Manual X-VA-8503-eng Part Number: 541B087AHG March, 2008 Section 1 Introduction Needle Control Valves Models 8503 and 8504 1-1 Description Brooks® NRS (Non-Rising Stem) Needle Valves are designed specifically for low flow gas and liquid applications. Straight and angle pattern models in Brass or Stainless Steel are available. Five different interchangeable connection fittings can be used with each. Models 8503 & 8504 are supplied with an NRS control valve.
Section 1 Introduction Installation and Operation Manual Needle Control Valves Models 8503 and 8504 X-VA-8503-eng Part Number: 541B087AHG March, 2008 Materials of Construction Brass Model: Nickel plated brass body. Size 1-3: Brass and Delrin® orifice; sizes 4-6: Brass orifice; 316 steel valve needle, brass plunger, Buna-N O-rings. Stainless Steel Model: 316 Stainless steel body and valve needle. Size 1-3: Stn. Stl. and Teflon® orifice; Sizes 4-6: Stn. Stl. orifice; Stn. Stl.
Installation and Operation Manual X-VA-8503-eng Part Number: 541B087AHG March, 2008 Section 1 Introduction Needle Control Valves Models 8503 and 8504 Figure 1-1 Dimensions, Models 8503 & 8504 Figure 1-2 Exploded View NRS Valve Figure 1-3 Numerical Handle and NRS Needle Valve 1-3
Section 1 Introduction Installation and Operation Manual Needle Control Valves Models 8503 and 8504 THIS PAGE WAS INTENTIONALLY LEFT BLANK 1-4 X-VA-8503-eng Part Number: 541B087AHG March, 2008
Installation and Operation Manual X-VA-8503-eng Part Number: 541B087AHG March, 2008 Section 2 Installation Needle Control Valves Models 8503 and 8504 2-1 General This section contains the procedures for the receipt and installation of the instrument. Do not attempt to start the system until the instrument has been permanently installed. It is extremely important that the start-up procedures be followed in the exact sequence presented.
Section 2 Installation Installation and Operation Manual Needle Control Valves Models 8503 and 8504 X-VA-8503-eng Part Number: 541B087AHG March, 2008 2-4 Return Shipment Prior to returning any instrument to the factory, contact your nearest Brooks location for a Return Materials Authorization Number (RMA#). This can be obtained from one of the following locations: Brooks Instrument 407 W. Vine Street P.O.
Installation and Operation Manual X-VA-8503-eng Part Number: 541B087AHG March, 2008 Section 2 Installation Needle Control Valves Models 8503 and 8504 It is recommended that a Brooks Model 1390 Filter with a rating of two (2) microns, be installed on the inlet and outlet sides of the valve body. This filter will reduce the amount of foreign matter which could impair the operation of the valve. 2-8 Panel Mounting Standard NRS Valve (Reference Figure 2-1) Figure 2-1 Panel Mounting Drawing a.
Section 2 Installation Installation and Operation Manual Needle Control Valves Models 8503 and 8504 X-VA-8503-eng Part Number: 541B087AHG March, 2008 2-9 Panel Mounting NRS Valve With Digital Handle (Reference Figure 2-1) a. Open the valve by rotating the knob (19) counterclockwise until stop is reached. b. Loosen four set screws (22) and remove counter housing (23) from bonnet nut (20). c. Loosen bonnet set screw (24) and remove bonnet nut (20) and front panel nut (15F) from bonnet (12). d.
Installation and Operation Manual X-VA-8503-eng Part Number: 541B087AHG March, 2008 Section 3 Operation Needle Control Valves Models 8503 and 8504 3-1 Operating Precaution 3-2 General After the NRS needle control valve has been installed in the flow line, it is ready for operation. When the valve knob is turned counterclockwise to the stop, the valve is fully opened. Turning the valve knob clockwise redues flow and eventually will shut off flow.
Section 3 Operation Installation and Operation Manual Needle Control Valves Models 8503 and 8504 THIS PAGE WAS INTENTIONALLY LEFT BLANK 3-2 X-VA-8503-eng Part Number: 541B087AHG March, 2008
Installation and Operation Manual X-VA-8503-eng Part Number: 541B087AHG March, 2008 Section 4 Maintenance Needle Control Valves Models 8503 and 8504 4-1 Maintenance The Brooks Model 8503 and 8504 NRS Valves require no maintenance when installed in a dirt-free flow line. Repair or disassembly of the valve in the field is not recommended. During assembly parts are ultrasonically cleaned and "clean" room assembled for trouble-free operation. DO NOT attempt to disassemble the valve.
Installation and Operation Manual Needle Control Valves Models 8503 and 8504 X-VA-8503-eng Part Number: 541B087AHG March, 2008 LIMITED WARRANTY Seller warrants that the Goods manufactured by Seller will be free from defects in materials or workmanship under normal use and service and that the Software will execute the programming instructions provided by Seller until the expiration of the earlier of twelve (12) months from the date of initial installation or eighteen (18) months from the date of shipment
