Quarter Turn

Morin S

Stainless steel spring return and double acting
pneumatic quarter-turn actuators.
Output torques to 26890 Nm

Features & Benefits:

  • Innovative stainless steel construction provides superior internal and external corrosion resistance
  • 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
  • High strength 17-4 PH stainless output shaft transmits torque and gives long service life
  • Heat-treated stainless steel thrust pin and rollers transfer piston force to yoke to reduce friction for longer life and more efficient torque transmission
  • Bi-directional travel stops provide accurate valve rotation adjustment
  • PTFE 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
  • NAMUR drive slot maintains a compact assembly for accessory-driven components with no couplings necessary
  • Available in symmetrical and canted yoke design to suit application
  • Spring return model design requires no special tools to disarm springs safely and easily, reducing down time.

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, food and beverage, iron and steel, off-shore marine, pharmaceutical, power, oil and gas, pulp and paper, and textile industries.

Technical Data

Supply pressure: 3 to 11 bar (see torque charts)
Supply medium: Air or any gas compatible with materials of construction
Temperature rating
Standard range: -29°C to 99°C
Optional range: -54°C to 149°C
Angular rotation: 90 degrees (adjustable between 82 and 98 degrees)
Mounting pattern: ISO 5211
Protection: IP66; IP68 (optional)
Certification: SIL3 rated

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Technical Data Sheets

Morin S Pneumatic Actuator (Metric) (English)

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Installation & Maintenance Instructions

Biffi Morin Models A, B, C And S Pneumatic Actuators (English)

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Operating & Safety Instructions

Morin A/B/C/S Pneumatic Actuator (Metric) (English)

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Operating & Safety Instructions

Morin Locking Accessory (Imperial) (English)

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Operating & Safety Instructions

Morin Manual Hand Pump (Imperial) (English)

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CAD Drawings

S 003U D000 (English)

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CAD Drawings

S 003U S000 (English)

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CAD Drawings

S 006U D000 (English)

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CAD Drawings

S 006U S000 (English)

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CAD Drawings

S 012U D000 (English)

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CAD Drawings

S 012U S000 (English)

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CAD Drawings

S 023U D000 (English)

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S 023U S000 (English)

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CAD Drawings

S 036U D000 (English)

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S 036U S000 (English)

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CAD Drawings

S 046U D000 (English)

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S 046U S000 (English)

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S 050U D000 (English)

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S 050U S000 (English)

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S 058U S000 (English)

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S 059U D000 (English)

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S 059U S000 (English)

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CAD Drawings

S 072U D000 (English)

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S 072U S000 (English)

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CAD Drawings

S 100U D000 (English)

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S 100U S000 (English)

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S 1150U D000 (English)

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S 1150U S000 (English)

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CAD Drawings

S 135U D000 (English)

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S 135U S000 (English)

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CAD Drawings

S 144U D000 (English)

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S 144U S000 (English)

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CAD Drawings

S 210U D000 (English)

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CAD Drawings

S 210U S000 (English)

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Certificates, Approvals & Qualifications

BIFFI series A B C S and HP Certificate (English)

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CAD Drawings

S 270U D000 (English)

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S 270U S000 (English)

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CAD Drawings

S 344U S000 (English)

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S 345U D000 (English)

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S 345U S000 (English)

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CAD Drawings

S 370U D000 (English)

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S 370U S000 (English)

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CAD Drawings

S 420U D000 (English)

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S 420U S000 (English)

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S 575U D000 (English)

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S 575U S000 (English)

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CAD Drawings

S 740U D000 (English)

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S 740U S000 (English)

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S 944U S000 (English)

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CAD Drawings

S 945U D000 (English)

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CAD Drawings

S 945U S000 (English)

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Certificates, Approvals & Qualifications

12/12/2007 Morin Facility OSHA/VPP Approval (English)

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Certificates, Approvals & Qualifications

American Bureau of Shipping (ABS) Type Certification (English)

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Certificates, Approvals & Qualifications

Custom Union Technical Regulation TR TS 010 (English)

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Certificates, Approvals & Qualifications

ISO 9001 Certification (English)

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Certificates, Approvals & Qualifications

LoE K Permit Kazakhstan (English)

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Certificates, Approvals & Qualifications

Loe K Permit Kazakhstan (English) (English)

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CAD Drawings

Morin Namur Mounting Details (English)

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Technical Bulletins

Morin B WH/S WH Water Service Actuators (Imperial) (English) (English)

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Technical Bulletins

Morin B WH/S WH Water Service Actuators (Metric) (English) (English)

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Technical Specification

Morin Quick Acting Actuator (Imperial) (English) (English)

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Technical Bulletins

Morin Quick Acting Actuator (Metric) (English) (English)

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Technical Specification

Morin Adjustable Lock Out Device (Imperial) (English) (English)

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Technical Specification

Morin Adjustable Lock Out Device (Metric) (English) (English)

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Technical Specification

Morin Manual Override Options (Imperial) (English) (English)

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Technical Specification

Morin Manual Override Options (Metric) (English) (English)

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Reference Documents

Morin Options Code Index (Imperial) (English) (English)

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Reference Documents

Morin Options Code Index (Metric) (English) (English)

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Specification Sheets

Morin S Suggested Specification (Imperial) (English) (English)

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Specification Sheets

Morin S Suggested Specification (Metric) (English) (English)

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Torque Tables

Morin Torque Tables (Metric) (English)

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Torque Tables

Morin Torque Tables (Imperial) (English)

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Certificates, Approvals & Qualifications

PED Module H H1 2019 07 (English)

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