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DLOCK

Specifications For D-Lock Manual lock out/tag out

Definition

DynaTorque D-Locks are suited for applications where powered equipment such as pneumatic, hydraulic, or electric actuators must be locked in either the full clockwise or counter clockwise positions. This product provides Lockout capabilities for all types of valve and other rotational devices where the function of the device requires the prevention of rotation (i.e., such as torque seated butterfly valves). Application torque requirements must be accurately calculated for correct D-Lock sizing (if unsure contact the factory, see below) D-Locks are totally enclosed, weatherproof, and permanently lubricated. The D-Lock is designed to mount between the valve and its primary driving mechanism.

Construction

Unit housing and covers are cast iron, worms are heat-treated carbon steel, worm wheels are cast ductile iron, input shafts are stainless steel, shaft and worm wheel seals are Buna-N rubber, housing to cover seals are Loctite 51580, bushings are oil impregnated copper nickel steel alloy, all D-Locks have one shop coat black epoxy paint. (Pad-locks are not supplied as part of this mechanism)

Download PDF Version

D-Lock Brochure

Model

Unit Wgt. Lbs.

Output Torque Lbs.-in

Gear Ratio

Turns For 90 Deg.

Std. Output Bore

Std. Keyway Size

Std. Mounting Pattern

Qty. & Size

BCD

D3D-Lock

13.5

3,000

30:1

7.5

1.250

.25x.18

(4)5/16-18

2.756

D12D-Lock

43

12,000

57:1

14.25

2.000"

.375 sq.

(4) 1/2-13

4.921

D21D-Lock

61

21,000

44:1

11

2.500"

.500 sq.

(4) 5/8-11

5.512

D36D-Lock

126

63,000

53:1

13.25

3.250"

.750 sq.

(4) 3/4-10

6.496

D60D-Lock

149

140,000

60:1

15

4.000"

1.000sq.

(8) 5/8-11

10.000
D260D-Lock 681 260,000 100:1 25 6.250 1.50x1.00

(8) 1 1/8-7

14.016

Notes:

  1. Mechanical advantage is not required since the lockout position of the valve is reached using the powered device. The gears in the D-Lock move it’s output to the lock position under no-load conditions.

  2. The D-Lock can be operated with a standard ¾" socket, box end or adjustable wrench. (These tools are not supplied as part of this lockout package.

  3. The D-Lock is not a field adjustable device. This device must be ordered as "lock clockwise" or "lock counter-clockwise". Provisions must be made to prevent each component in the valve automation package from rotation independently. It is strongly suggested that all components be pinned together at assembly to prevent inadvertent rotation.