Morin Series B uses construction identical to the Series C, but with 316 Stainless Steel Cylinders.

• Ductile iron housing, piston and end caps provide long product life with durable, cost effective operation. 

• Output shaft made of high strength alloy steel transmits torque without fatigue. 

• Sintered bronze bushings or Teflon® composite on output shaft eliminate side loading of valve stem to maximize stem packing performance.

• Chrome-plated steel piston rod provides strength and corrosion resistance for enduring high cycle applications.

• Sintered bronze piston rod bushings provide low-friction support and precise alignment of the piston rod to increase efficiency, reduce maintenance and extend actuator life.

• Heat-treated stainless steel thrust pin and rollers transfer piston force to 17-4PH stainless steel yoke by rolling to reduce friction, for longer life and more efficient torque transmission.

• Teflon® guide bands ensure low-friction piston guidance during operation to protect cylinder walls from potential scoring and extend seal performance with a continuous cylinder wiping action.

• Bi-directional travel stops provide accurate valve rotation adjustment.

•  ISO 5211 mounting pattern promotes easier valve adaptation by utilizing internationally recognized standards.

• Both Series B and C have been certified to SIL 3 ratings.

• Namur drive slot on output shaft enables accessory-driven components to maintain a compact assembly and eliminates the need for couplings.

• Tectyl-coated springs can be disarmed without special tools to safely and easily disassemble the actuator in the field, reducing down time and providing a ‘man safe’ spring.

• Easily removable housing cover provides effortless access for internal inspection of yoke mechanism.

(Click here for brochure on Series B and C Actuators)

Available Options for B and C Series Actuators

Morin Series S Actuators

General Application:
For remote control of any quarter-turn application: ball, butterfly, rotary plug or damper style valves, etc. 
To be used in chemical process, pharmaceutical, power, oil, food and beverage, iron and steel, off-shore marine,  gas, pulp and paper, and textile industries.

Morin Series S Actuators

Stainless Steel Spring Return and Double Acting Pneumatic Quarter-turn Actuators Output Torques to 238,000 lb.in.

Features and Benefits 

•  Innovative stainless steel construction as standard provides superior corrosion resistance both internally and externally. 

• Scotch yoke design using precision bearings eliminates dead band in the yoke mechanism, providing the greatest torque output at the beginning and end of stroke. 

• Heat-treated stainless steel thrust pin and rollers transfer piston force to 17-4PH stainless steel yoke by rolling to reduce friction, for longer life and more efficient torque transmission. 

• Bi-directional travel stops provide accurate valve rotation adjustment. 

• Teflon® piston bearings, piston rod bushings and output shaft bushings provide longer life, reduce maintenance, and require no lubrication. 

• Universal design position indicator and pointer allows for either parallel or perpendicular mounting. 

• Stainless steel construction allows proximity switches to be direct-mounted in the actuator housing, eliminating the need to mount bracket and cam assemblies on top of the actuator. 

• NAMUR drive slot allows mounting of accessories closer to the actuator, resulting in a more compact, precise assembly, and eliminates the need for coupling. 

• Spring return model design requires no special tools to safely and easily disarm the spring in the field, reducing down time and providing a ‘man safe’ spring.

General Applications
Designed specifically for automating quarter-turn pipeline valves, providing control for any quarter-turn ball, plug or butterfly valve application.

Morin Series HP Actuators

Features and Benefits :

•  High pressure construction eliminates undesirable regulators and relief valves for supply pressures up to 1,500 psig.

•  Hydraulic dampening provides smooth “open-close” operation to prevent detrimental valve slamming.

•  Ductile iron housing provides long product life with durable, cost effective operation. 

•  Cylinders of 316 stainless steel provide unrivaled corrosion resistance. 

•  Output shaft made of high strength alloy steel transmits torque without. 

•  Sintered bronze bushings or sealed needle bearings on output shaft eliminate side-loading of valve stem to maximize stem  packing performance. 

•  Chrome-plated steel piston rod provides strength and corrosion resistance for enduring high-cycle applications. 

•  Sintered bronze piston rod bushings provide low-friction support and precise alignment of the piston rod to increase efficiency, reduce maintenance and extend actuator life.

• Heat-treated stainless steel thrust pin and rollers transfer piston force to 17-4PH stainless steel yoke by rolling to reduce friction, for longer life and more efficient torque transmission. 

• Teflon® guide bands ensure low-friction piston guidance during operation to protect cylinder walls from potential scoring and extend seal performance with a continuous cylinder wiping action. 

• Bi-directional travel stops provide accurate valve rotation adjustment.

•  ISO 5211 mounting promotes easier valve adaptation by utilizing internationally recognized mounting patterns.

•  Drive slot on output shaft enables accessory-driven components to maintain a compact, low profile assembly.

• Tectyl-coated springs can be disarmed without special tools to safely and easily disassemble the actuator in the field, reducing down time and providing a “man-safe” spring. 

• Easily removable housing cover provides effortless access for internal inspection.

•  Dry piston seal consists of a one piece graphite filled TFE ring with an O-ring expander. Seal is self lubricating and performs well in direct gas and hydraulic service.

Tyco actuators mounted on Tyco valves with Tyco mounting hardware results in Factory Package Integrity!

Morin Direct Mount Cast Adaptors
Features and Benefits: 

• The bracket and coupling are the least expensive portion of a valve and actuator assembly. Unfortunately, the bracket and coupling receive the least amount of attention. We believe they deserve more attention. Mounting hardware controls the alignment and overall distance between the valve and actuator.

•  Improperly manufactured brackets and couplings can cause premature valve stem seal failure or potential sideloading of the stem, increasing torque requirements and reducing valve cycle life .

• The Morin adaption is cast from high strength ductile iron and CNC machined to hold tight tolerances. Precision machined couplings and castings lead to less "stack up" tolerances guaranteeing consistency in each cast adaptor kit at a low cost.

(Click here for brochure on Morin Direct Mount Cast Adaptors)

Morin Direct Mount MRP Pneumatic Actuator
This actuator is designed to directly mount of valves that incorporate the  Keystone Drilling without the need for mounting brackets.
The MRP is also available in the ISO Standard for bracket mounting on all other types of valves.

Spring Return and Double Acting Pneumatic Quarter-Turn --  Actuators For Output Torques to 13,444 lb.in.
The Morin MRP Pneumatic Actuator is a compact, rack & pinion design, conforming to Keystone standard or direct mount standards or EN ISO 5211 mounting configuration, depending on the drive adaptor installed.

Features and benefits

• Compact rack and pinion design utilizes the whole piston area to develop output torque.

• Pistons with integral rack drive reduce the number of dynamic seals, minimizing air leakage.

• Double pistons nullify sideloads on the pinion shaft, minimizing bearing wear and extending life.

• Internal air porting eliminates external tubing.

• Hard anodized aluminum body with external electrostatic powder coating (ESPC) finish protects against corrosive environments.

• Female output drive enables direct mounting of most Keystone valves, eliminating special adaptation connections and assuring correct alignment. 

• Bottom entry pinion shaft simplifies assembly and provides anti-blowout feature.

• Anti-friction piston pads ensure no metal-to-metal contact, providing smooth operation. Ideal for modulating or on/off control applications.

• Adjustable travel stops standard in both directions on sizes 065 through 091.

Morin announces the release of two new 
options that take plant safety to a new level.

Morin Partial Stroke Test Device (PSTD)
The Morin Partial Stroke Test Device (PSTD) was developed to allow users to test emergency shut-down valves without disrupting the process. The PSTD unit is locked out when the unit is in service and the valve functions normally. When the unit needs to be tested, the operator unlocks the device and inserts the stop pin, allowing for 15 degrees of valve travel to sufficiently test the valve package. Unlike electronic versions, you are guaranteed a hard stop and no over-travel, time after time, without any special calibration 

The second option, the lock-out feature, allows operators to mechanically lock out the actuator in a safe position while work is being done on the process.

Since their inception, Morin pneumatic actuators have gained the reputation of being one of the most rugged actuators on the market. The Morin line was developed in all stainless steel in the beginning, allowing Morin to win over customers by taking on their toughest problems. Even the Series B follows the tradition of using stainless steel cylinders with a Ductile Iron body, thus eliminating the cylinder corrosion that kills most actuators. With standard features like stainless steel cylinders, yokes, and bearings on every moving part, Morin actuators have an extremely long life cycle, making them an excellent long-term investment for plant operators.

(Click here for brochure on Morin Lock-out Feature)

If you want to protect your people, process and actuator investment, choose Morin. Don’t be fooled by imitations and false promises out there in the field. Go with the one that people have relied on for years.