รายละเอียด:
Specifications :
• Sizes: 1/4 through 2 (DN8 through DN50); Mark 331/332: 1-1/2 & 2 (DN40 & DN50)
End Connections: threaded, flanged
• Body Materials: Ductile Iron, Bronze, Carbon Steel, Stainless Steel
• Seat Materials: Jorcote on SST (standard) Chrome Plated SST (Optional)
• Shutoff: ANSI Class IV
• Power Requirements: 24 VAC, 50/60 Hz (optional transformer required for 120 VAC)
• Command Signals: proportional control (0135 ohms); on-off control; current command (4-12, 4-20, 12-20 mA DC standard); voltage command 2-10 VDC