PF6 Stainless Steel Piston Actuated On/ Off Valves
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- Edward Fisher
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1 Page of TI-P7- CH Issue Cert. No. LRQ 9 ISO 9 PF Stainless Steel Piston Actuated On/ Off Valves Description A -port pneumatically actuated on / off stainless steel valve for use on steam, water, air, oil and gases. A pneumatic signal acts on the actuator piston to open or close the valve with a spring return action. A valve position indicator is included on standard and flow regulator models. Standard versions have PTFE stem seals for operation up to C. Optionally, high temperature stem seals (H) can be provided for operation up to 9 C. Valves are available with one of three sizes of actuator: Type (5 mm), Type ( mm) and Type (9 mm) with the following action options: - NC (Normally Closed) - Designed for flow over the seat (port to ). Caution: Not recommended for waterhammer prevention. - NO (Normally Open) - Designed for flow under the seat (port to ). Can be used to prevent waterhammer on valve closure in liquid applications. - BD (Bi-Directional normally closed) - Designed for special applications that require flow in both directions and incorporates an anti-waterhammer design for liquid applications flowing under the seat (port to ). Note: To help prevent the possibility of waterhammer on liquid applications flowing over the seat (port to ) the pressure should not exceed bar g. Optional extras (see 'Valve selection guide', page 7): - Travel switch. - Flow regulator. Sizes, pipe connections and actuator combinations Valve Pipe Actuator DN5 DN DN5 DN DN DN5 type connections type " ¼" " PTFE version PFG Screwed to BSP or NPT PTFE version PFG Butt weld to DIN 5 pipe, H version ANSI B. / ISO 5 pipe or ISO pipe PTFE version H version PTFE version PFG Flanged to EN 9 or ANSI Class 5 H version (welded on flanges) PTFE version H version PFG Socket weld to ANSI B. / ISO 5 pipe PTFE version PF5G Sanitary clamp to ISO 5 or ASME BPE. PTFE version Notes: H version. DN is not available with ASME BPE end connections PTFE version. Clamp and clamp gasket are not included H version Available range Valve action NC - Normally Closed (flow over seat) NO - Normally Open (flow under seat) BD - Bi-Directional normally closed (flow over or under seat) Screwed Butt weld Flanged Socket weld Sanitary (BSP or NPT) (EN 9 or ANSI) clamp PFG - NC PFG - NC - PFG - NC PF5G - NC PFG - NC PFG - NC PFG - NC PFG - NC PF5G - NC PFG - NC PFG - NC PFG - NC PFG - NC PF5G - NC PFG - NO PFG - NO - PFG - NO PF5G - NO PFG - NO PFG - NO PFG - NO PFG - NO PF5G - NO PFG - NO PFG - NO PFG - NO PFG - NO PF5G - NO PFG - BD PFG - BD - PFG - BD PF5G - BD PFG - BD PFG - BD PFG - BD PFG - BD PF5G - BD PFG - BD PFG - BD PFG - BD PFG - BD PF5G - BD Local regulations may restrict the use of this product to below the conditions quoted. In the interests of development and improvement of the product, we reserve the right to change the specification without notice. Copyright 7
2 Page of Pressure / temperature limits Temperature C Steam saturation curve A B C D Pressure bar g The product must not be used in this region or beyond the body design conditions quoted in the table below as damage to the internals will occur. High temperature stem seals (Option H) are required for use in this region. A - A PN B - B PN and ANSI 5 C - C PN5 D - D PN Body design conditions Maximum design pressure Screwed, butt weld, socket weld and flanged EN 9 DN5 - DN5 ( - ") DN and DN (¼" - ) DN5 (") PN PN5 PN Flanged ANSI DN5 - DN5 ( - ") Class 5 Sanitary clamp compatible connections DN5 - DN5 PN Refer to the graph above Maximum design temperature 9 C Minimum design temperature Maximum operating pressure Standard seals 9 bar C for saturated steam service High temperature seals - Option H.5 bar 9 C Maximum operating temperature Standard seals 9 bar g High temperature seals - Option H - C 9 bar g Minimum operating temperature (Note: For lower operating temperatures consult Spirax Sarco) - C Maximum differential pressure (see page ) Designed for a maximum cold hydraulic test pressure of: Maximum test pressure is equal to the maximum differential pressure A B C D.5 x PMA (PN rating) Technical details Leakage TFM soft seal ANSI class V Flow characteristic Fast opening On/off Flow direction PF_G-NC Flow over seat Port to PF_G-NO Flow under seat Port to PF_G-BD Flow over seat Port to Flow under seat Port to Pilot media Air or water C maximum Actuator rotation Actuator type and size Pilot connection Type = 5 mm diameter " BSP bar g Type = mm diameter ¼" BSP bar g Type = 9 mm diameter ¼"BSP bar g Maximum pilot pressure Kvs values DN5 DN DN5 DN DN DN5 Size " ¼" " Kvs For conversion: C v (UK) = K v x.9 C v (US) = K v x.5 PF Stainless Steel Piston Actuated On/ Off Valves TI-P7- CH Issue
3 Page of NC (Normally Closed) NO (Normally Open) and and BD (Bi-Directional normally closed) 9 5 and Materials No. Part Material Body Stainless steel AISI L Bonnet Stainless steel AISI L Plug Stainless steel AISI L Valve plug seal TFM 5 Valve stem Stainless steel AISI L Stem seals Standard PTFE + FKM chevron Option H * 7 Stem 'O' ring FKM Actuator housing 5% carbon graphite filled PTFE % glass filled polyamide (for H version PA) 9 Piston 5% glass filled polyamide Piston lip seal NBR Gasket PTFE 'O' ring FKM * Note: Item 7 is not shown. PF Stainless Steel Piston Actuated On/ Off Valves TI-P7- CH Issue
4 Page of PMX - Maximum differential pressures for PF piston actuated valves * Notes:. Maximum differential pressure for saturated steam service is.5 bar g.. Sanitary clamp connections are limited to PN pressure rating.. ANSI flange connections are limited to ANSI 5 pressure rating. PF_G-NC (Normally closed) * Maximum Actuator Flow differential Pilot Pressure Model Valve size diameter direction pressure Minimum Maximum (mm) (port to ) PF_G-NC PF_G-NC PF_G-NC DN5 - () 5 over seat. DN - () 5 over seat. DN5 - () over seat.5 DN - () over seat.5 DN5 - (") over seat.5 DN - (¼") over seat. DN - () over seat. DN5 - (") over seat. DN5 - (") 9 over seat. DN - (¼") 9 over seat. DN - () 9 over seat. DN5 - (") 9 over seat 5. PF_G-NO (Normally open) * Maximum Actuator Flow differential Pilot Pressure Model Valve size diameter direction pressure Minimum Maximum (mm) (port to ) PF_G-NO PF_G-NO PF_G-NO DN5 - () 5 under seat. DN - () 5 under seat. DN5 - () under seat.5 DN - () under seat.5 DN5 - (") under seat.5 DN - (¼") under seat.5 DN - () under seat.5 DN5 - (") under seat.5 DN5 - (") 9 under seat. DN - (¼") 9 under seat. DN - () 9 under seat. DN5 - (") 9 under seat. PF_G-BD (Bi-Directional normally closed) * Maximum * Maximum differential differential Actuator Flow pressure Flow pressure Model Valve size diameter direction (port to ) direction (port to ) Minimum Maximum (mm) (port to ) (port to ) PF_G-BD PF_G-BD PF_G-BD * see Notes at the top of this page * see Notes at the top of this page DN5 - () 5 over seat under seat. 5. DN - () 5 over seat under seat DN5 - () over seat under seat.. DN - () over seat under seat.. DN5 - (") over seat under seat.. DN - (¼") over seat under seat.. DN - () over seat under seat.. DN5 - (") over seat under seat.5. DN5 - (") 9 over seat under seat.. DN - (¼") 9 over seat under seat.. DN - () 9 over seat under seat.. DN5 - (") 9 over seat under seat.. * see Notes at the top of this page PF Stainless Steel Piston Actuated On/ Off Valves TI-P7- CH Issue
5 Page 5 of Pilot / media pressure relationship PF_G-NC flow over seat ( to ) PF_G-NC (Normally Closed) Media pressure PF_G-NO flow under seat ( to ). Media pressure PF_G-NO (Normally Open) PF_G-NC flow over seat ( to ) ¼" " PF_G-NC flow over seat ( to ) " Media pressure Media pressure " ¼" " PF_G-NO flow under seat ( to ).5 Media pressure PF_G-NO flow under seat ( to ) Media pressure " ¼" " " ¼" " PF_G-BD flow over seat ( to ) PF_G-BD (Bi-Directional normally closed) Media pressure PF_G-BD flow over seat ( to ) " Media pressure PF_G-BD flow over seat ( to ) Media pressure " ¼" " ¼" " PF Stainless Steel Piston Actuated On/ Off Valves TI-P7- CH Issue
6 Page of PF piston actuated valves - opening / closing times (seconds) Notes:. is bar. Pressure in the body bar Actuator Ø5 mm Actuator Ø mm Actuator Ø9 mm Valve NC valves NO valves NC valves NO valves NC valves NO valves size opening closing opening closing opening closing opening closing opening closing opening closing DN DN DN5 - " DN - ¼" DN DN5 - " Dimensions and weights (approximate) in mm and kg Screwed, Flanged Valve Actuator socket weld and butt weld EN ANSI size type 9 5 * * and size A B C D Weight A A B C Weight DN5 - DN - DN5 - " DN - ¼" DN - DN5 - " (5 mm) ( mm) (5 mm) ( mm) ( mm) (9 mm) ( mm) (9 mm).. 7. ( mm) (9 mm) ( mm) (9 mm) Notes: * Add. kg for travel switch or flow regulator options (not available for use with the Type actuator). Dimension 'D' is for socket weld connections only. Valve Actuator Sanitary clamp (to ISO 5) Sanitary clamp (ASME BPE) size type and size A B C E F Weight * A B C E F Weight * DN5 - (5 mm) ( mm) DN - (5 mm) ( mm) DN5 - " ( mm) (9 mm) DN - ¼" ( mm) (9 mm) DN - ( mm) (9 mm) DN5 - " ( mm) (9 mm) Note: * Add. kg for travel switch or flow regulator options (not available for use with the Type actuator). PF Stainless Steel Piston Actuated On/ Off Valves TI-P7- CH Issue
7 Page 7 of * Travel switch * Flow regulator 77 mm mm B (Screwed, socket weld and butt weld) B (Sanitary clamp) and B (Flanged) C C E F D A (screwed, socket weld and butt weld) D Note: Dimension 'D' is for socket weld connections only. A (Sanitary clamp) A (EN 9) and A (ANSI) Associated equipment Pilot solenoid Type DM -port two way electropneumatic pilot solenoid valve that can be directly mounted (banjo connection) to the PFG-NC, NO and BD series piston actuated valves to provide actuator pilot pressure to open normally closed or close normally open valves. Suitable for air or water operating media. The valve is supplied with a DIN connector. For full details refer to the relevant Technical Information Sheet. Available types Model Type Actuator Voltage/Frequency Connection DM 5 mm /5 or / Vac /" BSP DM 5 mm /5 or / Vac /" BSP DM 5 mm /5 or / Vac /" BSP DM 5 mm Vdc /" BSP DM mm / 5 or / Vac ¼" BSP DM mm / 5 or / Vac ¼" BSP DM mm /5 or / Vac ¼" BSP DM mm Vdc ¼" BSP DM 9 mm / 5 or / Vac ¼" BSP DM 9 mm / 5 or / Vac ¼" BSP DM 9 mm /5 or / Vac ¼" BSP DM 9 mm Vdc ¼" BSP PF Stainless Steel Piston Actuated On/ Off Valves TI-P7- CH Issue
8 Page of Valve selection guide Valve size DN5 (), DN (), DN5 ("), DN (¼"), DN () and DN5 (") DN5 Valve type P = Piston valve P Valve characteristic Body material F = Fast opening = Stainless steel F Connections Valve plug seal = Screwed BSP or NPT - DIN 5 pipe = Butt weld Note: state pipeline connection when ordering: - ANSI B. / ISO 5 pipe - ISO pipe = Flanged EN 9 or ANSI Class 5 (welded on flanges) = Socket weld ANSI B. / ISO 5 pipe 5 = Sanitary clamp Note: state pipeline connection ISO 5 or ASME BPE when ordering G = TFM soft seat G Stem seal Actuator type Valve position Optional Blank = PTFE chevron (standard) H = 5% graphite filled PTFE chevron Note: Option H is not available for the sanitary clamp version or valves fitted with Type actuators. = 5 mm diameter = mm diameter = 9 mm diameter NC = Normally Closed NO = Normally Open BD = Bi-Directional Blank = No options required Provides indication of open or closed valve position through a magnetic reed switch with volt free contacts. I = Travel switch Maximum rating: Voltage (V) = 5 V, Current (I) =.5 A, Power (P) = VA. Available on Type and Type actuators with suffix 'I' if this option is required. R = Flow regulator Note: Shaded areas represent fixed parameters Provides manual control of maximum flow through the valve. Can also provide manual shut-off on normally open valves. Available on Type and Type actuators with suffix 'R' if this option is required. NC Valve selection guide example DN5 PF G - NC - Flanged EN 9 PN How to order Example: off Spirax Sarco DN5 PFG-NC stainless steel piston actuated on/off valve having flanged EN 9 PN connections. Spare parts A seal kit is available for all valve and actuator sizes comprising: Piston lip seal, stem 'O' ring, valve head seal (TFM ), body seal and 'O' ring. How to order spare seal kits Always order spares by specifying the valve size, type and date code (given on the actuator label i.e. = week, year ). Example: off Seal kit for a " PFG-NC, date code. Safety information, installation and maintenance For full details, see the Installation and Maintenance Instructions supplied with the product. Installation note: These valves can be mounted in any orientation. The actuator can be rotated in the direction indicated on the product label to facilitate easy pilot mounting connection. PF Stainless Steel Piston Actuated On/ Off Valves TI-P7- CH Issue
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