Torque Specifications (ft-lbs)

Type

 

Head

 

 

Nominal Size Numbers or Inches

 

 

Bolt

Markings

 

 

 

 

 

 

 

 

 

 

#10

1/4

5/16

3/8

7/16

1/2

9/16

5/8

3/4

7/8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SAE Grade 2

 

 

 

 

 

-

5

10

18

29

44

63

87

155

150*

Coarse (UNC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SAE Grade 5

 

 

 

 

 

-

8

16

28

44

68

98

135

240

387

Coarse (UNC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SAE Grade 5

 

 

 

 

 

-

-

18

-

-

-

-

-

-

-

Coarse (UNC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SAE Grade 8

 

 

 

 

 

-

11

22

39

63

96

138

191

338

546

Coarse (UNF)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Socket Head

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cap Screw

 

 

 

 

 

5

13

26

46

73

112

115

215

380

614

(ASTM A574)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Coarse (UNC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1)Torque values in this table are not to override other specific torque specifications when supplied.

2)When using loctite, torque values in this table are only accurate if bolts are tightened immediately after loctite is applied.

*The proof strength of Grade 2 bolts is less for sizes 7/8 and above and therefore the torque values are less than smaller sizes of the same grade.

Torque Specifications for 17-4 Stainless Steel Fasteners (ft-lbs)

Type

Head

 

Nominal Size Numbers or Inches

 

 

Bolt/Nut

Markings

 

 

 

 

 

 

 

 

 

#10

1/4

5/16

3/8

7/16

1/2

9/16

5/8

3/4

Hex & Socket

3

8

14

25

40

60

101

137

245

Head Cap Screws

 

 

 

 

 

 

 

 

 

Nut

-

8

-

25

-

-

-

-

-

NOTE: Continue use of red loctite #271 (VPN 2205E) on currently applied locations. Use blue loctite #243 (VPN 2205F or 2205G) on all remaining locations.

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Emerson VSS, VSR, VSM service manual Torque Specifications ft-lbs

VSS, VSM, VSR specifications

Emerson VSM, VSR, and VSS are advanced technologies designed for process automation and control, often utilized in industrial applications. These systems are part of Emerson's broader portfolio of solutions aimed at enhancing operational efficiency, safety, and reliability.

The Emerson VSM, or Valve Signature Management, focuses on the digital management of valves within a system. One of its main features includes advanced diagnostics that monitor the health and performance of control valves. This technology allows for predictive maintenance, ensuring that valves operate at peak efficiency and reducing the risk of unexpected failures. The VSM utilizes a combination of smart sensors and actuators to gather data, enabling real-time analytics that can enhance decision-making and operational strategies.

On the other hand, VSR, or Valve Status Reporting, enhances visibility into the operational state of valves in real time. This system provides operators with critical updates and alerts related to valve conditions, significantly reducing response times to potential issues. The VSR technology integrates seamlessly with existing control systems, allowing for easier implementation and minimal disruption to ongoing operations. The reporting capabilities feature user-friendly dashboards that present complex data in a straightforward manner, empowering operators to make informed decisions quickly.

The Emerson VSS, or Valve Service Solutions, complements the VSM and VSR by focusing on the maintenance and support of valve systems. This offering includes comprehensive service packages that range from routine maintenance to advanced troubleshooting and repair. The VSS is designed to improve the lifespan of valves through proactive service, ensuring reliability and minimal downtime. Emerson’s trained technicians leverage predictive analytics derived from VSM and VSR data, allowing for timely intervention before issues escalate.

In summary, Emerson’s VSM, VSR, and VSS technologies work together to create a robust ecosystem for valve management in industrial settings. The combination of advanced diagnostics, real-time reporting, and comprehensive service solutions provides operators with a powerful toolkit aimed at optimizing performance and ensuring operational reliability. With these technologies, companies can embrace digital transformation, reduce operational risks, and improve overall process efficiency, leading to a safer and more productive environment. Each component plays a crucial role in empowering industries to meet the challenges of modern automation and maintain competitive advantages in their respective markets.