Leslie-controls DKLO D1 & D4 .5-4 125/250 class User Manual

DKLO D1 & D4 CONTROL VALVE Sizes ½” through 4” ANSI CLASS 125/250 TABLE OF CONTENTS INTRODUCTION...

10 NOTE D1 and D4 are designed and manufactured in accordance with Article 3, Section 3 of the Pressure Equipment Directive. Figure

11 ITEM # PART NAME MATERIAL PART # QTY 1 Vent plug H.D. poly -- 1 2 Upper casing Stl/powder coat -- 1 3 Springs Steel See Below See B

12 Reverse Shutoff (Air-to-Open) Bench Range Direct Shutoff† (Air-to-Close) Bench Range Spring Kit Includes: Part # D1 D4†† D1 D4 Spring Other

13 It is solely responsibility of system designer and user to select products and materials suitable for their specific application requirements an

2 INTRODUCTION This Installation, Operation, and Maintenance Manual is intended to be as complete and up to date as possible. It covers inst

3 E F Weight Size A B C 36 in2 60 in2 36 in2 60 in2 36 in2 60 in2 ½ - ¾ (15)-(20) 5 ½ (140) 1 11/16 (43) 1 3/16 (30) 9 7/8 (251) -- -- 9 ¼ (23

4 OPERATING PRINCIPLE The Dklo D1 & D4 Valves are flow to open, globe style, pneumatic diaphragm control valves. The pneumatic actuator ca

D1 & D4 ACTUATOR SHUTOFF TABLE (Refer to Temperature Limits) Reverse Shutoff* Direct Shutoff* Size (inches) Orifice Act. Size Bench Range 3-15 p

6 DKLO SERIES CODE SELECTION CHART CLASS ORIFICE SIZE VALVE SIZE CONNEC-TIONS TRIM MATERIAL PACKING ACTUATOR BENCH RANGE D 1 T E 8 1 1 3

7 machined flats of actuator stem, and remove stem nut (10), seal washer (12) and stem washer (11). Remove o-ring (8) from bushing and replace i

D1 VALVE BODY ASSEMBLY PART NUMBERS VALVE SIZE ITEM NO. PART NAME MATERIAL 1/2 3/4 1 1-1/4 1-1/2 2 23 A* STEM BOLT- SHORT BRASS 04-17277-0

9 VALVE SIZE ITEM NO. PART NAME MATERIAL 2-1/2 3 4 23 Pointer Aluminum 5-12962-0 5-12962-0 5-12962-0 24 Stem bolt Brass 4-17277-0 4-172