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

736-X Elastomer Swap Valve Short Stroke - SPARE PARTS

Part22.53
Adapter Bonnet, 761 to 361963406760496340676059634067606
Caplug 5/8750568750568750568
Yoke750224750224750224
Body Clamp270266270267212211
O-Ring USF755356755356755356
Stem O-Ring Buna755370755370755370
Stem O-Ring EPDM750132750132750132
Stem O-Ring SFY750077750077755077
O-Ring USF755388755388755388
O-Ring USF755472755472755472
Body Gasket, Buna755417755419755420
Body Gasket, EPDM751799750812750322
Body Gasket, SFY750209750210750610
LP Stem, USF963405582596340558269634055827
LP Stem, ESF773116773199773014
LP Stem, SFY773063773200773058
Packing Gland751659751659751659
Plastic Dome751682751682751682
Actuator750318750318750318
Stem Protector750583750583750583
Stem Bushing763361763361763361
Lockwasher189962189962189962
Screw189773189773189773
Screw189723189723189723
Vented Plug181256181256181256

736-X Elastomer Swap Valve - Short Stroke - SERVICE KITS

Part22.53
Buna961399066296139906659613990668
EPDM961399066396139906669613990669
SFY961399066496139906679613990670

736-X Elastomer Stem Swap Valve Long Stroke - SPARE PARTS

Part22.53
Adapter Bonnet, 761 to 361963406760496340676059634067606
Caplug 5/8750568750568750568
Yoke751684751684751684
Body Clamp270266270267212211
O-Ring, USF755356755356755356
Stem O-Ring, Buna755370755370755370
Stem O-Ring, EPDM750132750132750132
Stem O-Ring, SFY750077750077750077
O-Ring, USF755388755388755388
O-Ring, USF755472755472755472
Body Gasket, Buna755417755419755420
Body Gasket, EPDM751799750812750322
Body Gasket, SFY750209750210750610
LP Stem, USF963405582596340558269634055827
LP Stem, ESF773116773199773014
LP Stem, SFY773063773200773058
Packing Gland751659751659751659
Plastic Dome751682751682751682
Actuator751681751681751681
Stem Protector750577750577750577
Stem Bushing763361763361763361
Lockwasher189962189962189962
Screw189773189773189773
Screw189723189723189723
Vented Plug181256181256181256

736-X Elastomer Stem Swap Valve Long Stroke - SERVICE KIT

Part22.53
Buna961399066296139906659613990668
EPDM961399066396139906669613990669
SFY961399066496139906679613990670

736TR-X Elastomer Swap Valve Short Stroke - SPARE PARTS

Part22.53
Adapter Bonnet, 761 to 361963406760496340676059634067606
Caplug 5/8750568750568750568
Yoke750224750224750224
Body Clamp270266270267212211
O-Ring, USF755356755356755356
Stem O-Ring, Buna755370755370755370
Stem O-Ring, EPDM750132750132750132
Stem O-Ring, SFY750077750077750077
O-Ring, USF755388755388755388
O-Ring, USF755472755472755472
Body Gasket, Buna755417755419755420
Body Gasket, EPDM751799750812750322
Body Gasket, SFY750209750210750610
TR Stem Complete770223770230770234
TR Seat Only750943750947751268
Packing Gland751659751659751659
Plastic Dome751682751682751682
Actuator750318750318750318
Stem Protector750583750583750583
Stem Bushing763361763361763361
Lockwasher189962189962189962
Screw189773189773189773
Screw189723189723189723
Vented Plug181256181256181256

736TR-X Elastomer Swap Valve Short Stroke - SERVICE KITS

Part22.5
Buna961399067196139906749613990677
EPDM961399067296139906759613990678
SFY961399067396139906769613990679

736TR-X Elastomer Stem Swap Valve Long Stroke - SPARE PARTS

Part22.53
Adapter Bonnet, 761 to 361963406760496340676059634067606
Caplug 5/8750568750568750568
Yoke751684751684751684
Body Clamp270266270267212211
O-Ring, USF755356755356755356
Stem O-Ring, Buna755370755370755370
Stem O-Ring, EPDM750132750132750132
Stem O-Ring, SFY750077750077750077
O-Ring, USF755388755388755388
O-Ring, USF755472755472755472
Body Gasket, Buna755417755419755420
Body Gasket, EPDM751799750812750322
Body Gasket, SFY750209750210750610
TR Stem Complete770223770230770234
TR Seat Only750943750947751268
Packing Gland751659750947751268
Plastic Dome751682751682751682
Actuator751681751681751681
Stem Protector750577750577750577
Stem Bushing763361763361763361
Lockwasher189962189962189962
Screw189773189773189773
Screw189723189723189723
Vented Plug181256181256181256

736TR-X Elastomer Stem Swap Valve Long Stroke -SERVICE KITS

Part22.53
Buna961399067196139906749613990677
EPDM961399067296139906759613990678
SFY961399067396139906769613990679

736TR2-X Elastomer Stem Swap Valve Short Stroke - SPARE PARTS

Part22.53
Adapter Bonnet, 761 to 361963406760496340676059634067606
Caplug 5/8750568750568750568
Yoke750224750224750224
Body Clamp270266270267212211
O-Ring, USF755356755356755356
Stem O-Ring, Buna755370755370755370
Stem O-Ring, EPDM750132750132750132
Stem O-Ring, SFY750077750077750077
O-Ring, USF755388755388755388
O-Ring, USF755472755472755472
Body Gasket, Buna755417755419755420
Body Gasket, EPDM751799750812750322
Body Gasket, SFY750209750210750610
TR2 Stem Complete9634054774773080773086
TR2 Seat Only963405833752100752102
Packing Gland751659751659751659
Plastic Dome751682751682751682
Actuator750318750318750318
Stem Protector750583750583750583
Stem Bushing763361763361763361
Lockwasher189962189962189962
Screw189773189773189773
Screw189723189723189723
Vented Plug181256181256181256

736TR2-X Elastomer Stem Swap Valve Short Stroke - SERVICE KITS

Part22.53
Buna961399068096139906839613990686
EPDM961399068196139906849613990687
SFY961399068296139906859613990688

736TR2-X Elastomer Stem Swap Valve Long Stroke - SPARE PARTS

Part22.53
Adapter Bonnet, 761 to 361963406760496340676059634067606
Caplug 5/8750568750568750568
Yoke751684751684751684
Body Clamp270266270267212211
O-Ring, USF755356755356755356
Stem O-Ring, Buna755370755370755370
Stem O-Ring, EPDM750132750132750132
Stem O-Ring, SFY750077750077750077
O-Ring, USF755388755388755388
O-Ring, USF755472755472755472
Body Gasket, Buna755417755419755420
Body Gasket, EPDM751799750812750322
Body Gasket, SFY750209750210750610
TR2 Stem Complete963454774773080773086
TR2 Seat Only9634050833752100752102
Packing Gland751659751659751659
Plastic Dome751682751682751682
Actuator751681751681751681
Stem Protector750577750577750577
Stem Bushing763361763361763361
Lockwasher189962189962189962
Screw189773189773189773
Screw189723189723189723
Vented Plug181256181256181256

736TR2-X Elastomer Stem Swap Valve Long Stroke - SERVICE KITS

Part22.53
Buna961399068096139906839613990686
EPDM961399068196139906849613990687
SFY961399068296139906859613990688

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