Series 66 direct acting step-down regulator is widely used in burner cont?rol, gas seal system of storage tank and other applications requiring precise cont?rol of low-pressure industrial gas. In addition, series 66 direct acting vacuum application equipment is equipped with vacuum regulator and vacuum circuit breaker structure.
66 系列直接作用式降壓調壓器廣泛應用于燃燒器控制、儲罐氣封系統(tǒng)及其他需要精確控制低壓工業(yè)氣體的應用，此外，66 系列直接作用式真空應用設備同時帶有真空調壓器和真空斷路器結構。Fisher™費希爾66 系列直接作用式調壓器
Fisher ™ 66 series direct acting spring pressure range
Spring Ranges to 1-1/2 psig
BODY SIZE, NPS | BODY CLASS AND ENDCONNECTION | FS NUMBER FOR SPRING RANGE |
4 to 11 Inches w.c.(1) | 8 to 28 Inches w.c.(1) | 2 to 5 Inches w.c. | 4 to 8 Inches w.c. | 7 to 12 Inches w.c. | 10 to 17 Inches w.c. | 14 to 28 Inches w.c. | 3/4 to 1-1/2 Psig（2） |
2 | NPT | 66-501 | 66-521 | 66-500 | 66-502 | 66-503 | 66-504 | 66-505 | ★66-543 |
2 | CL 125FF | 66-506 | 66-522 | 66-507 | 66-508 | 66-509 | 66-510 | 66-511 | ★66-544 |
3 | CL 125FF | 66-531 | 66-512 | 66-513 | 66-532 | 66-514 | 66-533 | 66-515 | ★66-545 |
4 | CL 125FF | 66-541 | 66-516 | 66-517 | 66-542 | 66-518 | 66-519 | 66-520 | ★66-546 |
1. Must have 1 psi minimum differential. 2. Heavy plate construction. |
Spring Ranges Greater Than 1-1/2 psig
BODY SIZE, NPS | BODY CLASS AND ENDCONNECTION | SPRING RANGE，psig |
1 to 2(1) | 1-1/2 to 3(1) | 3 to 5(2) |
2 | NPT | ★66-547 | ★66-548 | ★66-549 |
2 | CL 125FF | ★66-550 | ★66-551 | ★66-552 |
3 | CL 125FF | ★66-553 | ★66-554 | ★66-555 |
4 | CL 125FF | ★66-556 | ★66-557 |
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Fisher™費希爾66 系列直接作用式調壓器彈簧壓力范圍
彈簧范圍2"WC到1-1/2psig
閥體尺寸 NPS |
閥體和端部連接 | 彈簧范圍的FS編號 |
4 to 11 Inches w.c.(1) | 8 to 28 Inches w.c.(1) | 2 to 5 Inches w.c. | 4 to 8 Inches w.c. | 7 to 12 Inches w.c. | 10 to 17 Inches w.c. | 14 to 28 Inches w.c. | 3/4 to 1-1/2 Psig（2） |
2 | NPT | 66-501 | 66-521 | 66-500 | 66-502 | 66-503 | 66-504 | 66-505 | ★66-543 |
2 | CL 125FF | 66-506 | 66-522 | 66-507 | 66-508 | 66-509 | 66-510 | 66-511 | ★66-544 |
3 | CL 125FF | 66-531 | 66-512 | 66-513 | 66-532 | 66-514 | 66-533 | 66-515 | ★66-545 |
4 | CL 125FF | 66-541 | 66-516 | 66-517 | 66-542 | 66-518 | 66-519 | 66-520 | ★66-546 |
1.蕞小壓差必須為1 psi。 2.厚板結構。 |
彈簧范圍大于1-1/2psig
閥體尺寸, NPS |
閥體和端部連接 | 彈簧壓力范圍，psig |
1 - 2(1) | 1-1/2 - 3(1) | 3 - 5(2) |
2 | NPT | ★66-547 | ★66-548 | ★66-549 |
2 | CL 125FF | ★66-550 | ★66-551 | ★66-552 |
3 | CL 125FF | ★66-553 | ★66-554 | ★66-555 |
4 | CL 125FF | ★66-556 | ★66-557 |
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