The NHPC high pressure cage type regulating valve It is one pressure balance-like regulating valve, the valve structure is compact, the fluid channel S streamline form, the pressure drop loss is small, the current capacity is big, the adjustable range is broad. the regulating valve's spillage conforms to standard of ANSI the B16.104 . The regulating valve uses for parts the multi-spring thin film or the air cylinder implementing agency, its structure is compact, the output strength is big. this product conforms to standard of GB/T4213-92 nominal size: 40--200mm fixed CV value: 12--1000 nominal pressure: ANSI 900--2500 valve chest material : The carbon steel, the stainless steel, Corrosion-resistant alloy and so on the valve contents material : The stainless steel, stainless steel +ST, Corrosion-resistant alloy and so on the divulging rank: ANSI III adjustable ratio: 50:1 temperature range: - 5~+566 oC implementing agency: HA, VA, VPand so on