CRANE. Σελίδα 1 από 2. Dimensions and Weights. Weight (kg) Size

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1 CRANE Σελίδα από 2 DM93 Variable Orifice Double Regulating Valve PN6 Cast Iron Balancing Valve (VODRV), Flanged to BSEN 92-2 The DM93 variable orifice double regulating valves will give satisfactory performance at all levels of authority. The valve can be used as an alternative means of balancing a circuit or being installed in a bypass circuit where flow measurement is required. Bill of Materials Sequence Description Material Sizes Handwheel SG Cast Iron BS2789 Gr.400/8 All 2 Handwheel Screw Brass BSEN264 CW64N All 3 Stem 'O' ring Viton All 4 Indication Collar Aluminium Indication Collar PPO Plastic 6 - Gland SG Cast Iron BS2789 Gr.400/ Gland Brass BSEN264 CW64N 6-6 Gland Packing P.T.F.E. (Carbon Filled) All 7 Lock Nut Bushing Bronze BSEN982 CC49K All 8 Bonnet Cast Iron BSEN6 GJL-2 All 9 Bonnet Gasket Asbestos Free All Gland nut Carbon Steel Gr Gland nut Brass BSEN264 CW64N 6 - Inner Stem DZR Brass BSEN26 CW602N All 2 Inner Stem Gland DZR Brass BSEN26 CW602N All 3 Stem Aluminium Bronze NES834 Part 2 All 4 Inner Gland Packing P.T.F.E. (Carbon Filled) All Packing Support Ring DZR Brass BSEN26 CW602N All 6 Bonnet Bolt Carbon Steel Gr.8.8 All 7 Bonnet Bolt Nut Carbon Steel Gr.8.8 All 8 Disc Cast Iron BSEN6 GJL Disc Bronze BSEN982 CC49K 6-9 Disc Seat Ring P.T.F.E. All 20 Balancing Cone Bronze BSEN982 CC49K All 2 Body Seat Ring Bronze BSEN982 CC49K All 22 Body SG Cast Iron BS2789 Gr.400/8 All 23 Gland Bolt Carbon Steel Gr Disc Sleeve Bronze BSEN982 CC49K Stop Screw Stainless Steel BS9 Gr.304 All 26 Indicator Ring Nylon All 27 P84 Test Valve See Cat.No. P84 All Dimensional Drawing Dimensions and Weights Size Weight (kg) A B (mm) (mm) mm mm mm mm mm mm mm mm mm mm mm mm

2 DM930 Variable Orifice Double Regulating Valve file://c:\documents%20and%20settings\toshiba\τα%20έγγραφά%20µου\prospectus\β... Σελίδα 2 από 2 7// mm Pressure Rating: PN6 Installation Instructions: It is normal for variable orifice double regulating valves to be installed on the "return" side of any circuit or sub-circuit. Positioned in a circuit in this way, the static pressure will be kept at the highest level possible in the terminal unit thus reducing the risk of cavitation and the onset of noise within the terminal coil. To avoid any impairment of accuracy it is recommended that the valve is installed with a straight length of pipe on the inlet side equivalent to diameters. On the outlet side, a straight length of 2 diameters should be provided. UK End Connection: Flanged BSEN 92-2 US End Connection: Not Specified Operating Instructions: The valve opening may be set with an Allen key to control flow at a pre-determined rate. Operation of the valve is by means of a handwheel incorporating a micrometer/vernier device. A bronze seat ring and PTFE disk seal are incorporated to ensure tight closure. The valves can be rendered "tamper proof" by means of wire seals. Specification: Y-pattern globe valve supplied with two P84 pressure test valves for fitting in the orientation of user choice to provide flow measurement, regulation and isolation. This valve is intended for group 2 liquids only, as defined by the Pressure Equipment Directive 97/23/EC. Temperature operating range: - to 20 degrees celsius. For further assistance please call our technical helpline on +44 (0) or us at enquiries@cranefs.com. Following a policy of continuous development, Crane Fluid Systems reserves the right to alter specifications and dimensions shown in the e-catalogue without prior notice. Additional Documents PED Declaration View All DM930 Flow Charts Some charts are in PDF format, and require Adobe Acrobat Reader to view them. If you do not have Acrobat Reader, use the following link to get and install it. home ecatalogue web use statement conditions of sale estore links crane Copyright 2000 Crane Co. All rights reserved.

3 Size 2/2" (6mm) DM93 / DA DM93/ DA93: The loss resulting from the insertion of the valve in the pipeline equates to the signal measured at the pressure test valves equivalent to BS387 medium grade.

4 Size 3" (80mm) equivalent to BS387 medium grade.

5 Size 4" (mm) equivalent to BS387 medium grade.

6 Size " (2mm) Signal mm Water : DM93-DMV93-DA93-DMG93-DAV93-DAG93: equivalent to BS387 medium grade.

7 Size 6" (mm) Signal mm Water calibrated using connecting pipework equivalent to BS387 medium grade. data associated with other pipe systems.

8 Size 8" (200mm) calibrated using connecting pipework equivalent to ANSI B36. Schedule 40 data associated with other pipe systems.

9 Size " (2mm) DM93-DMV93-DA93-DAG93-DMG93-DAV93: approximating to ANSI B36. schedule 40.

10 Size 2" (300mm) Handwheel Position DM93-DMV93-DA93-DAG93-DMG93-DAV93: approximating to ANSI B36. schedule 40.