Alfa Laval Tri-Clover® 736 Swap Valve

Do you have Tri-Clover® 361 valves in your facility? If you're ready for newer technology, but not able to make the change to a new valve body, the Tri-Clover 736 "swap" valve from Alfa Laval may be the solution. The 736 valve was designed specifically to bridge the gap when an older 361 valve fails, but a complete valve upgrade isn't feasible. Since the swap valve consists of a complete 761 style valve, installation is quick and easy, with no cutting or welding required.

The 736 valve provides the same reliable, sanitary, and flexible design you expect from any of Alfa Laval's 700 series valves. A variety of options allow you to customize the valve to your system's needs. Even if you're not ready for a complete overhaul of your system, you can still look forward to many more years of reliable performance to your valves with the 736 valve.

Tri-Clover 736 valves are authorized to carry the 3-A symbol.

Application

The 736 valve is used to convert existing welded-in Tri-Clover 361 series shut off valves into a version of the Tri-Clover 700 series valve. This conversion provides an upgrade to all features and benefits of the Tri-Clover 700 series, without cutting or welding.

Working Principle

The valve is remote-controlled by means of compressed air. It has few and simple movable parts, contributing to a very reliable valve.

Standard Design

Like all 700 series valves, the 736 valve is designed to deliver years of reliable performance. Utilizing a specially designed bonnet, it’s easy to replace existing 300 series shut-off valves:

1. Remove the body-bonnet clamp

2. Pull the 300 series components (from stem to the actuator) out of the existing 300 series valve body

2. Replace with the 736 swap valve and gasket

4. Reattach with the provided body-bonnet clamp

The 736 valve design utilizes all 761 valve spares and features including ThinkTop and GreenTop indication units, TR2, and LP elastomer stems, with high-pressure and “sealed-for-life” reversible actuators.

Actuator Function
  • Pneumatic downward movement, spring return (NO)
  • Pneumatic upward movement, spring return (NC)
  • Pneumatic upward and downward movement (A/A)
  • Actuator for intermediate position of the valve plug as option
Materials
Product Wetted Steel Parts 316L
Other Steel Parts 304
Plug Stem Buna bonded or "TR"/"TR2" PTFE replaceable (standard)
EPDM or SFY (optional)
Product Wetted Seals Buna (standard)
EPDM or SFY (optional)
Technical Data
Max Product Pressure Depends on valve specification and size (contact CSI)
Max Temperature 200 – 284°F (EPDM)
Air Pressure 60 – 80 psi
Dimensional Data
736InstalledDimensions
Valve Size (Tube OD)
(in)
A - Short
(in)
A - Long
(in)
C
(in)
2.0 17.32 21.25 3.50
2.5 17.56 21.53 3.50
3.0 18.06 22.03 3.75
Options
  • Control and indication (Control Top or ThinkTop®)
  • High pressure actuator for 2.5 and 3.0 inch sizes
  • Three position actuator
  • Long stroke actuator
Pressure Drop/Capacity Diagrams

Shut-off valve flow pattern: B to A (solid curve), A to B (broken curve)

736-Pressure-Drop-Diagram


Note! For the diagram the following applies:
Medium: water (68°F)
Measurements: In accordance with VDI 2173

Spare Parts

736TR2-X Elastomer Stem Swap - Long Stroke

Service Kits

Type22.53
Buna961399068096139906839613990686
EPDM961399068196139906849613990687
SFY961399068296139906859613990688



Spare Parts

Part22.53Diagram Key
Adapter Bonnet, 761 to 3619634067604963406760596340676061
Caplug 5/87505687505687505682
Yoke7516847516847516843
Body Clamp2702662702672122114
O-Ring, USF7553567553567553565
Stem O-Ring, Buna7553707553707553706
Stem O-Ring, EPDM7501327501327501326
Stem O-Ring, SFY7500777500777500776
O-Ring, USF7553887553887553887
O-Ring, USF7554727554727554728
Body Gasket, Buna7554177554197554209
Body Gasket, EPDM7517997508127503229
Body Gasket, SFY7502097502107506109
TR2 Stem Complete96345477477308077308610
TR2 Seat Only963405083375210075210210a
Packing Gland75165975165975165911
Plastic Dome75168275168275168212
Actuator75168175168175168113
Stem Protector75057775057775057714
Stem Bushing76336176336176336115
Lockwasher18996218996218996216
Screw18977318977318977317
Screw18972318972318972318
Vented Plug18125618125618125619


736 Swap Valve Parts List

736TR2-X Elastomer Stem Swap - Short Stroke

Service Kits

Type22.53
Buna961399068096139906839613990686
EPDM961399068196139906849613990687
SFY961399068296139906859613990688



Spare Parts

Part22.53Diagram Key
Adapter Bonnet, 761 to 3619634067604963406760596340676061
Caplug 5/87505687505687505682
Yoke7502247502247502243
Body Clamp2702662702672122114
O-Ring, USF7553567553567553565
Stem O-Ring, Buna7553707553707553706
Stem O-Ring, EPDM7501327501327501326
Stem O-Ring, SFY7500777500777500776
O-Ring, USF7553887553887553887
O-Ring, USF7554727554727554728
Body Gasket, Buna7554177554197554209
Body Gasket, EPDM7517997508127503229
Body Gasket, SFY7502097502107506109
TR2 Stem Complete963405477477308077308610
TR2 Seat Only96340583375210075210210a
Packing Gland75165975165975165911
Plastic Dome75168275168275168212
Actuator75031875031875031813
Stem Protector75058375058375058314
Stem Bushing76336176336176336115
Lockwasher18996218996218996216
Screw18977318977318977317
Screw18972318972318972318
Vented Plug18125618125618125619


736 Swap Valve Parts List

736TR-X Elastomer Stem Swap - Long Stroke

Service Kits

Type22.53
Buna961399067196139906749613990677
EPDM961399067296139906759613990678
SFY961399067396139906769613990679



Spare Parts

Part22.53Diagram Key
Adapter Bonnet, 761 to 3619634067604963406760596340676061
Caplug 5/87505687505687505682
Yoke7516847516847516843
Body Clamp2702662702672122114
O-Ring, USF7553567553567553565
Stem O-Ring, Buna7553707553707553706
Stem O-Ring, EPDM7501327501327501326
Stem O-Ring, SFY7500777500777500776
O-Ring, USF7553887553887553887
O-Ring, USF7554727554727554728
Body Gasket, Buna7554177554197554209
Body Gasket, EPDM7517997508127503229
Body Gasket, SFY7502097502107506109
TR Stem Complete77022377023077023410
TR Seat Only75094375094775126810a
Packing Gland75165975094775126811
Plastic Dome75168275168275168212
Actuator75168175168175168113
Stem Protector75057775057775057714
Stem Bushing76336176336176336115
Lockwasher18996218996218996216
Screw18977318977318977317
Screw18972318972318972318
Vented Plug18125618125618125619


736 Swap Valve Parts List

736TR-X Elastomer Swap - Short Stroke

Service Kits

Type22.53
Buna961399067196139906749613990677
EPDM961399067296139906759613990678
SFY961399067396139906769613990679



Spare Parts

Part22.53Diagram Key
Adapter Bonnet, 761 to 3619634067604963406760596340676061
Caplug 5/87505687505687505682
Yoke7502247502247502243
Body Clamp2702662702672122114
O-Ring, USF7553567553567553565
Stem O-Ring, Buna7553707553707553706
Stem O-Ring, EPDM7501327501327501326
Stem O-Ring, SFY7500777500777500776
O-Ring, USF7553887553887553887
O-Ring, USF7554727554727554728
Body Gasket, Buna7554177554197554209
Body Gasket, EPDM7517997508127503229
Body Gasket, SFY7502097502107506109
TR Stem Complete77022377023077023410
TR Seat Only75094375094775126810a
Packing Gland75165975165975165911
Plastic Dome75168275168275168212
Actuator75031875031875031813
Stem Protector75058375058375058314
Stem Bushing76336176336176336115
Lockwasher18996218996218996216
Screw18977318977318977317
Screw18972318972318972318
Vented Plug18125618125618125619


736 Swap Valve Parts List

736-X Elastomer Stem Swap - Long Stroke

Service Kits

Type22.53
Buna961399066296139906659613990668
EPDM961399066396139906669613990669
SFY961399066496139906679613990670



Spare Parts

Part22.53Diagram Key
Adapter Bonnet, 761 to 3619634067604963406760596340676061
Caplug 5/87505687505687505682
Yoke7516847516847516843
Body Clamp2702662702672122114
O-Ring, USF7553567553567553565
Stem O-Ring, Buna7553707553707553706
Stem O-Ring, EPDM7501327501327501326
Stem O-Ring, SFY7500777500777500776
O-Ring, USF7553887553887553887
O-Ring, USF7554727554727554728
Body Gasket, Buna7554177554197554209
Body Gasket, EPDM7517997508127503229
Body Gasket, SFY7502097502107506109
LP Stem, USF96340558259634055826963405582710
LP Stem, ESF77311677319977301410
LP Stem, SFY77306377320077305810
Packing Gland75165975165975165911
Plastic Dome75168275168275168212
Actuator75168175168175168113
Stem Protector75057775057775057714
Stem Bushing76336176336176336115
Lockwasher18996218996218996216
Screw18977318977318977317
Screw18972318972318972318
Vented Plug18125618125618125619


736 Swap Valve Parts List

736-X Elastomer Swap - Short Stroke

Service Kits

Type22.53
Buna961399066296139906659613990668
EPDM961399066396139906669613990669
SFY961399066496139906679613990670



Spare Parts

Part22.53Diagram Key
Adapter Bonnet, 761 to 3619634067604963406760596340676061
Caplug 5/87505687505687505682
Yoke7502247502247502243
Body Clamp2702662702672122114
O-Ring USF7553567553567553565
Stem O-Ring Buna7553707553707553706
Stem O-Ring EPDM7501327501327501326
Stem O-Ring SFY7500777500777550776
O-Ring USF7553887553887553887
O-Ring USF7554727554727554728
Body Gasket, Buna7554177554197554209
Body Gasket, EPDM7517997508127503229
Body Gasket, SFY7502097502107506109
LP Stem, USF96340558259634055826963405582710
LP Stem, ESF77311677319977301410
LP Stem, SFY77306377320077305810
Packing Gland75165975165975165911
Plastic Dome75168275168275168212
Actuator75031875031875031813
Stem Protector75058375058375058314
Stem Bushing76336176336176336115
Lockwasher18996218996218996216
Screw18977318977318977317
Screw18972318972318972318
Vented Plug18125618125618125619


736 Swap Valve Parts List

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