MAKING MODERN LIVING POSSIBLE Technical brochure Stop Needle Valves and SNV-SS www.danfoss.com/ir
Stop Needle Valve, type and SNV-SS Contents Page Introduction........................................................................................ Features............................................................................................ Technical data......................................................................................4 Design.............................................................................................4 Connections........................................................................................4 Material specification...............................................................................5 Dimensions and weights............................................................................6 Ordering...........................................................................................7 Accessories.....................................................................................8 2 DKRCI.PD.KB0.A5.02 / 520H00 Danfoss A/S (AC-SMC / MWA), 2-200
Stop Needle Valve, type and SNV-SS Introduction SNV-SS (extended branch) (manometer connection) SNV-SS (extended branch) and SNV-SS valves are designed to meet all industrial refrigeration application requirements. Designed as service valves they provide favourable flow characteristics. Features Applicable to all common refrigerants including R77 and R744 (CO 2 ) and non corrosive gases/liquids. Suitable for "heavy duty" industrial applications having a very sturdy and safe design including high pressures and wide temperature range. The and SNV-SS valves have backseating (metal to metal). Compact and light valve for easy handling and installation No special flow direction required. Provide high flow characteristics. Each valve type is clearly marked with type and size. Housing and bonnet material is low temperature steel (stainless steel for SNV-SS) according to requirements of the Pressure Equipment Directive and other international classification authorities. Valve safety is enhanced with the spindle being secured such that it cannot be unscrewed. Max. operating pressure: 52 bar g ( 754 psig) Valves for higher operating pressure available on request Full temperature range: 60/+50 C ( 76/+02 F) Danfoss A/S (AC-SMC / MWA), 2-200 DKRCI.PD.KB0.A5.02 / 520H00
Stop Needle Valve, type and SNV-SS Technical data Refrigerants Applicable to all common refrigerants including R 77 and R744 (CO 2 ) and non corrosive gases/liquids. For further information please see installation instruction for. For further information please contact your local Danfoss Sales Company. Temperature range 60/+50 C ( 76/+02 F). Maximum working pressure The valve is designed for: Maximum operating pressure of 52 bar g ( 754 psig). Valves for higher operating pressure available on request. Design Connections Available with the following connections: CD Cutting ring MPT Male NPT ANSI FPT Female NPT ANSI G W Welding connection Housing Made of special steel, approved for low temperature operations. Spindle Equipped with stainless steel spindle, which is ideal for O ring sealing. Installation No special flow direction is required. The valve is designed to withstand high internal pres sures. However, the piping system in general should be designed to avoid liquid traps and reduce the risk of hydraulic pressure caused by thermal expansion. For further in formation refer to installation instruction for and SNV-SS. Connections CD 6 CD0 Cutting ring, DIN 86 & DIN 90 class L, du = 6 mm Cutiing ring, DIN 86 & DIN 90 class L, du = 0 mm /4 MPT /8 MPT /4 male NPT ANSI /8 male NPT ANSI d u is external pipe diameter Note: Fittings not included /4 FPT /8 FPT /4 female NPT ANSI /8 female NPT ANSI G /2 G /2 W /2 welding connection OD = 2. mm (0.89 in.) T = 2. mm (0.09 in.) 4 DKRCI.PD.KB0.A5.02 / 520H00 Danfoss A/S (AC-SMC / MWA), 2-200
Stop Needle Valve, type and SNV-SS Material specification and SNV-SS (extended branch) No. Part Material EN JIS ASTM Housing Steel P285QH EN 0222-4 SFL 2 G 205 LF2 A50 Stainless steel (SNV-SS) XSCrNi8-0, 0088 AISI 04 2 Spindle Stainless steel X8CrNiS 8-9 SUS 0 AISI 0 EN 0088' DIN 7440 (SNV-SS only) Locking ring Steel 4 Sealing ring Teflon 5 Seal cap gasket Nylon 6 Gland nut Steel 7 Seal cap Steel Danfoss A/S (AC-SMC / MWA), 2-200 DKRCI.PD.KB0.A5.02 / 520H00 5
Stop Needle Valve, type and SNV-SS Dimensions and weights (manometer conn.) Type C G Weight Type C G Weight mm 5 2 0.6 kg in. 4.5.26 0.79 lb (Man.) mm 27 45 0.56 kg in. 5.00.77.22 lb / SNV-SS (extended branch) Type C G L Weight Specified weights are approximate values only., SNV-SS Ext.branch Ext.branch Ext.branch SNV-SS Ext.branch mm 2 50 0.60 kg in. 5.6.26.97.2 lb mm 8 2 00 0.60 kg in. 7..26.94.2 lb mm 206 2 25 0.60 kg in. 8..26 4.92.2 lb mm 2 2 50 0.60 kg in. 9.09.26 5.9.2 lb 6 DKRCI.PD.KB0.A5.02 / 520H00 Danfoss A/S (AC-SMC / MWA), 2-200
Stop Needle Valve, type and SNV-SS Ordering / SNV-SS (extended branch) (manometer connection) How to order The table below is used to identify the valve required. Please note that the type codes only serve to identify the valves, some of which may not form part of the standard product range. For further information please contact your local Danfoss Sales Company. Important! Where products need to be certified according to specific certification societies or where higher pressures are required, the relevant information should be included at the time of order. See figure L Fig. Fig. 2 Fig. Side branch connection Bottom branch connection Type Quantity Code No. CD 0 CD 0 CD0-CD0 pc. 48B740 CD 0 CD 0 CD0-CD0 0 pcs. 48B477 CD 0 /4 MPT CD0-/4MPT pc. 48B74 CD 6 /4 MPT CD6-/4MPT pc. 48B742 CD 0 / 8 MPT CD0-/8MPT pc. 48B74 CD 6 / 8 MPT CD6-/8MPT pc. 48B744 G ½ (external) G ½ (external) G/2-G/2 pc. 48B745 G ½ (external) G ½ (external) G/2-G/2 0 pcs. 48B479 /4 FPT /4 MPT /4FPT-/4MPT pc. 48B746 /4 FPT /4 MPT /4FPT-/4MPT 0 pcs. 48B480 / 8 FPT / 8 MPT /8FPT-/8MPT pc. 48B747 / 8 FPT / 8 MPT /8FPT-/8MPT 0 pcs. 48B48 / 8 FPT ½ MPT /8FPT-/2MPT 0 pcs. 48B42 CD /4 /4 MPT CD /4-/4MPT 0 pcs. 48B4220 CD / 8 / 8 MPT CD/8-/8MPT 0 pcs. 48B422 CD / 8 /4 MPT CD/8-/4MPT 0 pcs. 48B4222 /4 FPT /4 FPT /4FPT-/4FPT 0 pcs. 48B422 ½ MPT ½ MPT /2MPT-/2MPT 0 pcs. 48B4224 / 8 FPT / 8 FPT /8FPT-/8FPT 0 pcs. 48B4225 ½ MPT / 8 FPT /2MPT-/8FPT 0 pcs. 48B4226 CD 6 /4 MPT CD6-/4MPT* 0 pcs. 48B426 7 / 6 UNF /4 MPT 7/6UNF-/4MPT 0 pcs. 48B420 See figure 2 L50 = 50 mm (2 in.) L00 = 00 mm (4 in.) L25 = 25 mm (5 in.) L50 = 50 mm (6 in.) See figure * With handwheel Extended Branch Side branch connection Bottom branch connection Type Quantity Code No. CD0 W½ L00 CD0-W/2 L00 pc. 48B768 CD0 W½ L00 CD0-W/2 L00 0 pcs. 48B420 G ½ (external) W½ L00 G/2-W/2 L00 pc. 48B769 G ½ (external) W½ L00 G/2-W/2 L00 0 pcs. 48B42 G ½ (external) W½ L25 G/2-W/2 L25 0 pcs. 48B429 G ½ (external) W½ L50 G/2-W/2 L50 0 pcs. 48B428 G /4 (internal) R/4 L50 (external) G/4-R/4 L50 0 pcs. 48B42 /4 FPT /4 MPT L00 /4FPT-/4MPT L00 0 pcs. 48B422 G ½ (external) W½L50 SNV-SS G/2-W/2 L50 pc. 48B4265 G ½ (external) W½L50 SNV-SS G/2-W/2 L50 pc. 48B4266 G ⅜ (external) W½L25 G/8-W/2 L25 0 pcs. 48B46 Manometer connection Side branch connection Bottom branch connection Type Quantity Code No. G ½ G ½ G½ Man pc. 48B778** ** Including adaptor for connection to ICS/PM valve. Danfoss A/S (AC-SMC / MWA), 2-200 DKRCI.PD.KB0.A5.02 / 520H00 7
Stop Needle Valve, type and SNV-SS Accessories Type Connection type Quantity Code no. Weld nipple incl. union nut and O-ring CD 0 pc. 48B729 Blind nut incl. gasket Blind nut SS incl. gasket G /2 pc. 48H450 48B47 CD 6 Cutting ring + union nut CD 6 pc. 48B482 CD 0 Cutting ring + union nut CD 0 pc. 48B48 60 pcs. 48B486 Welding nipple incl. aluminium gasket G½-ND6 2 pcs. 48B484 Al gaskets included / 4 FPT ½ G pc. 48B860 Al gaskets included / 8 G - ½ G pc. 48B86 www.danfoss.com/ir 8 DKRCI.PD.KB0.A5.02 / 520H00 Danfoss A/S (AC-SMC / MWA), 2-200