Related Manuals for Alfa Laval Tri-Clover 741 Series
Summary of Contents for Alfa Laval Tri-Clover 741 Series
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- Page 2 761VSM Tri-Clover ® Air-Actuated Valves Series 741, 761, 762, & 771 Service & Installation Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 4: Table Of Contents
This manual contains disassembly and assembly instructions, maintenance procedures, and a complete parts list for all 761, 741, 762, 771 Air Actuated Valves, designed and manufactured by Alfa Laval, Inc., Kenosha, Wisconsin. READ THIS MANUAL carefully to learn how to service these valves. Failure to do so could result in personal injury or equipment damage. -
Page 5: Safety
SAFETY IMPORTANT SAFETY INFORMATION Safety is very important! DO NOT attempt to modify any Tri-Clover product. To do so could create unsafe conditions and void all warranties. DO NOT place any Tri-Clover product in an application where general product service ratings are exceeded. The following DANGER, WARNING, AND CAUTION signs and their meanings are used within these instructions. -
Page 6: Introduction
INTRODUCTION ABOUT THIS MANUAL This manual is for standard valve assemblies and actuators. A separate service manual is available for the control top module option. All 700 series valves are compatible with the optional control top module that can provide valve position feedback with limit switches or proximity sensors, and an integrally mounted solenoid air control valve. -
Page 7: Maintenance
Tri-Clover offers C137 in 1 ounce tubes. For further information refer to your Tri-Clover ® Actuator Service Bulletin, or contact your Alfa Laval distributor. - 7 - Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com... - Page 8 MAINTENANCE VALVE DISASSEMBLY CAUTION To prevent personal injury, keep hands and tools out of and away from valve bodies and stems when applying or releasing air to an actuator. The actuator stem assembly moves with extreme force and suddenness. SHUT OFF & DIVERT VALVES Apply 60 psig air to the air connection on yoke.
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Page 9: Valve Component Inspection
MAINTENANCE VALVE COMPONENT INSPECTION ✓ ✓ ✓ ✓ ✓ VALVE BODY SEAT(s) Inspect for nicks and scratches and other signs of excessive wear. Leakage past the seat(s) may result from these types of irregularities. ✓ ✓ ✓ ✓ ✓ VALVE STEM & SEAT(S) Inspect rubber or PTFE seat(s) for signs of cracking, tearing, checking, or excessive wear. -
Page 10: Valve Assembly
MAINTENANCE VALVE ASSEMBLY CAUTION To prevent personal injury, keep hands and tools out of and away from valve bodies and stems when applying or releasing air to an actuator. The actuator stem assembly moves with extreme force and suddenness. IMPORTANT: Replace all worn or damaged components as required. Spray stem and o- ring with Sanitary Lubricant. - Page 11 MAINTENANCE SHUT OFF Lubricate o-ring with Sanitary Silicone Spray. Insert o-ring and split bushing into bonnet. DIVERT AND ELBOW Lubricate o-ring with Sanitary Silicone Spray. Insert o-ring into body, place required washer or sleeve on top of o-ring, place split bushing on top of this component. Fasten bonnet or body to yoke with three bolts and lock washers.
- Page 12 MAINTENANCE "TR & TR2" STEM/SEAT ASSEMBLY REMOVAL OF PTFE SNAP-ON SEAT Cut here 1. Refer to valve disassembly section to remove stem / seat assembly to remove from valve. seat. 2. Using a knife, partially cut through the upper ring portion of Snap-On Seat, avoiding contact with stainless steel stem.
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Page 13: Type 10, 20, And 30 Actuators
MAINTENANCE TYPE 10, 20, AND 30 ACTUATORS INTRODUCTION IMPORTANT: Additional air supply must be relieved when This section covers servicing of the following actuators: Type product pressure is not present. Failure to do so will result in pressure damage to the seat. 10L - 10S (normally open), Type 20L - 20S (Normally Closed) Long and Short, and Type 30L - 30S (Air Both Ways). - Page 14 MAINTENANCE 1. Remove end cap from actuator. Separate clear stem protector from the end cap. Fasten the end cap without stem protector to one end of the actuator. CAUTION To prevent personal injury, keep hands and tools out of and away from valve bodies and stems when applying or releasing air to an actuator.
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Page 15: Type 80 Actuator
MAINTENANCE TYPE 80 ACTUATOR INTRODUCTION Type 80 is a three position actuator that will require minimum maintenance. It is similar to the Type 10 & 20 spring return actuators except for a mid position adjustment assembly. Installation, adjustment, maintenance, partial disassembly, and assembly instructions are covered below. - Page 16 MAINTENANCE CAUTION To prevent personal injury, DO NOT attempt to remove the packing and bushing without the valve stem threaded onto the actuator stem. The stem is required because the packing and bushing will be forced out of the actuator under air pressure and will be trapped by the valve stem.
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Page 17: Type 15 And 25 Actuator
MAINTENANCE TYPE 15 AND 25 ACTUATOR INTRODUCTION This actuator is a spring return diaphragm unit designed to utilizes a diaphragm for reduced friction. It can be completely disassembled and rebuilt using Tri-Clover Replacement parts. Installation, maintenance, disassembly, and assembly instructions are covered below. INSTALLATION Connect air supply to coupler. - Page 18 MAINTENANCE DISASSEMBLY Actuator spring is not contained. Although preload force is low, caution must be used when spring force is released. Hand pressure must be applied to the cylinder top restricting its travel. Completely remove the actuator from the valve and follow the steps below. Insert four bolts into bonnet and clamp into vise as illustrated in Figure 2 2.
- Page 19 MAINTENANCE Type 15/25 Actuator Replacement Parts Part Number Qty Description 37-5-S Coupler 17-88 Gasket 13-78-S Sealing Nut 25-263B-01-S Body 36-55 Outer Diaphragm Clamp 37-88 Body Insert 35-1 Diaphragm 36-3 Inner Diaphragm Clamp 37-89-316 Adapter 4-2-S Spring 19-1279-S Stem 12-497-S Bonnet 36-15 Inner Diaphragm Guide...
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Page 20: Parts List
PARTS LIST 12 (4 req’d) 761/741 SHUT OFF • DIVERT • 10 (4 req’d) 4" Only REVERSE ACTING SHUT OFF All orders for repair parts must contain the following data: 1. Complete model number (from name plate). 2. Serial number (from name plate). 2L or 2S 3. - Page 21 -21- Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 23: 771 Throttling
PARTS LIST 12 (4 req’d) 771 THROTTLING 10 (4 req’d) All orders for repair parts must contain the following data: 4" Only 1. Complete model number (from name plate). 2. Serial number (from name plate). 3. Key number and description The following exploded view and accompanying parts list 2L or 2S facilitate order repair parts from the factory. - Page 24 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 26: 762 Kettle • Tank Outlet • Tangential
PARTS LIST 12 (4 req’d) 762 KETTLE • TANK OUTLET • TANGENTIAL 10 (4 req’d) All orders for repair parts must contain the following data: 1. Complete model number (from name plate). 4" Only 2. Serial number (from name plate). 3. - Page 27 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 29: 761 Y-Body
PARTS LIST 12 (4 req’d) 761 Y-BODY 10 (4 req’d) All orders for repair parts must contain the following data: 1. Complete model number (from name plate). 2. Serial number (from name plate). 3. Key number and description The following exploded view and accompanying parts list facilitate order repair parts from the factory. - Page 30 -27- Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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- Page 33 In no event, including shipment, providing it has been used as recommended and in in the case of a claim for negligence, shall Alfa Laval be liable accordance with recognized piping practice, and providing it has...
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