Pneumatics high temperature ball valve
详情介绍
product description
Summary:
This company designs the whole high temperature ball valve is USES the new sealing material for the seat, through the similar product ptfe to do the sealing ball valve, the service life increased 3-5 times. Has stable performance, reliable sealing, friction small, light switch, high temperature resistant, wear resistant, oil resistant, corrosion resistance, long life and other advantages, "heng valve" brand high temperature ball valve and globe valve, plunger valve, drain valve, the length of the structure, greater use of the ball valve is widely used in petroleum, chemical, rubber, paper, pharmaceutical and other industries, alternative cut-off valve, plunger valve, quick discharge valve. Applicable medium: water, steam, heat conduction oil and other acids, operating temperature: ≤350℃
Performance parameters:
| Model | PN(MPa) | Strengh testing pressure(MPa) | Seal test pressure(MPa) | applicable temperature(℃) | applicable medium |
| QQ641M/F -16C | 1.6 | 2.4 | 1.8 | -28～+300 (M/F) | Heat conduction oil, water, steam, gas, oil, nitric acid corrosive medium, acetic acid corrosive medium |
| QQ641M/F -25C | 2.5 | 4.0 | 2.8 | -28～+350 (PPN) |
Material of main parts
| numerical order | Parts | materials |
| 1 | valve body | Ductile iron, carbon steel, cast stainless steel |
| 2 | seal ring | (M/F)High strength and wear-resisting carbon junction graphite ≤300℃ (PPN) on hand drive polystyrene, temperature ≤350℃ |
| 3 | ball | stainless steel |
| 4 | packing | teflon |
| 5 | packing gland | QT450－10nodular cast iron |
| 6 | valve rod | Carbon steel, chromium stainless steel |
| 7 | hand shank | carbon steel |
main technical parameters
| Model | specification | size | ||||||
| L | D | D 1 | D 2 | z-φd | H | b | ||
| QQ641PPL -16 | 15 | 115 | 95 | 65 | 45 | 4-14 | 85 | 14 |
| 20 | 130 | 105 | 75 | 55 | 4-14 | 95 | 16 | |
| 25 | 140 | 115 | 85 | 65 | 4-14 | 103 | 16 | |
| 32 | 165 | 135 | 100 | 78 | 4-18 | 105 | 18 | |
| 40 | 180 | 145 | 110 | 85 | 4-18 | 120 | 18 | |
| 50 | 200 | 160 | 125 | 100 | 4-18 | 195 | 20 | |
| 65 | 220 | 180 | 145 | 120 | 4-18 | 195 | 20 | |
| 80 | 250 | 195 | 160 | 135 | 8-18 | 215 | 22 | |
| 100 | 280 | 215 | 180 | 155 | 8-18 | 255 | 24 | |
Structure characteristics and function principle:
This type of valve in the ball, sealing ring used special processing technology and the latest sealing material, so that the surface roughness and roundness of the ball meet the standard requirements, so as to improve the sealing performance and service life, high temperature resistance. The plate handle drives the valve stem to drive the ball to rotate, so that the medium can pass smoothly.