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Related Manuals for Dembla 8100F21 Series
Summary of Contents for Dembla 8100F21 Series
- Page 1 Instruction Manual Floating Ball Valve Series-8100F21 2 G/D T 3/4/5/6 0062...
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Page 2: Table Of Contents
CONTENTS PAGE NO. 1.0 Foreword 1.1 Scope of Instruction Manual 1.2 Copyright and Modification Rights Reservation 1.3 Safety Instructions 2.0 Introduction 3.0 Installation of 'O' Ball Valve 3.1 Pre-Installation Checks 3.2 Operation 3.3 Lubrication 3.4 Replace Gland Packing & Seat Ring. 4.0 Recommended Spares (for 'O'-ball valve) -
Page 3: Foreword
Dembla's Floating ball Valve. 1.2 Copyrights And Modification Rights Reservation Dembla Valves Ltd. retains the copyright on the contents of this Instruction Manual. The Total content of this instruction manual described here corresponds to the information during preparation of the instruction manual. It is user's responsibility to refer the latest version. -
Page 4: Installation Of 'O' Ball Valve
3.0 Installation Of 'O' ball Valve 3.1Pre-installation Checks: (Before installing any 'O' Ball Valve) (1) Inspect it for any shipment damage and for foreign material that might have collected during packing and shipment. (2) Blow out all pipelines to remove pipe scale-chips, welding-slag, and other foreign materials. -
Page 5: Replace Gland Packing & Seat Ring
3.4 Replace Gland Packing & Seat Ring. 1) Loosen & remove locknut(15) & lock pins(10). 2) Remove lever (9) 3) Remove lock washer (14) 4) Loosen & remove second lock nut (15) 5) Remove lock plate (11) & gland bush (13) 6) Remove gland packing (8) 7) Loosen &... - Page 6 5.0 To Separate Actuator from Valve Body. Before starting disassembly. Use Bu-pass Valve pr completely shut off the process to isolate the valve from pressure. Drain fluid from both ends of the Valve. If the Valve Opens with Pneumatic signal pressure to Actuator, remove air from the Actuator before attempting to remove Valve from line.
- Page 7 6.0 Actuator Operation The Actuator Drive Shaft rotates through a full 90°. Rotation is accomplished be feeding supply air into the center chamber(through Port A) forcing the two opposing Piston outword, remaining in counter-clockwise rotation of the Drive Shaft to the ‘Open’...
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Page 8: Recommended Spares (For 'O'-Ball Valve)
Actuator and turning it in the desired direction. This is not recommended on Model PD500/PE280 and larger size of Actuators. For these, Dembla Valves Limited offers optional Manual Over-ride Gear units, with declutch able hand wheels. ( Not Shown). - Page 9 10.0 Parts Illustrated (Floating Ball Valve With Rotary Actuator) SR. NO. PART NAME RECOMMENDED QUANTITY One Set for every valve Seat Ring One set of 'O' Ring for every five valve Gasket Body to One set of 'O' Ring for every five valve Side Connection One set of gasket for every five valve Gland Packing...
- Page 10 11.00 Disassembly & assembly Procedure of Floating Ball Valve Disassembly of Floating Ball Valve: 1. Loosen and remove the Hex Bolts (Actuator-MOR) . 2. Pull and remove the Actuator from top side. 3. Loosen and remove the Hex Bolts (MOR-Bracket) . 4.
- Page 11 11.00 Disassembly & assembly Procedure of Floating Ball Valve Assembly of Floating Ball Valve: 1. Insert Soft seat in both Body and Side connection if removed. 2. Put the Thrust washer on the collar of Valve Shaft 3. Insert Valve Shaft in Body along with Thrust Washer 4.
- Page 12 Dembla Works: Sales Office: M/S. Dembla Valves Ltd. M/S. Dembla Valves Ltd. C-30, Jai Matadi Compound, Kalher A/8, Arahm Logistic, Valshind Village, Village,Thane-Bhiwandi-Agra Raod - Mumbai -Nashik Highway 421302, (NH3),Bhiwandi Maharashtra,India. Thane - 421302. Maharashtra (India) Tel - +91-9292234790 - 97 E-mail - expo@dembla.com...
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