LDYP series self operated pressure regulating valve (steam pressure reducing valve)
| High safety: Used in non electrical environments, there are no external energy hazards | Valve body parameters | |
| Energy saving: No need for external energy, utilizing pipeline pressure regulation | Nominal pressure PN16, PN40, PN64 | |
| Simplified system: No need for external control instruments, simple system, low cost | Connection method: flange type, (special: welding type) | |
| Easy to operate: simply rotate and adjust the spring extension during setting | Valve body material 1Cr18Ni9Ti, Cr18Ni12Mo2Ti | |
| Technical Parameters | Valve core materials 1Cr18Ni9Ti, Cr18Ni12Mo2Ti, and Steller welding | |
| Action mode: U control valve in front, D control valve behind | Sealing material PTFE, hard seal, special high-temperature material | |
| Valve seat structure P single seat M sleeve | Bellows SS, SS304, SS316 | |
| Flow characteristics P single seat M socket | Packing PTFE, flexible graphite | |
| Adjustable range 30:1, maximum 10:1; Minimum 10:8 | Push rod liner 2Cr13 | |
| Sealing grade II, IV, VI | Gasket rubber asbestos board, 1Cr18Ni9Ti asbestos wrapped gasket | |
| Thin film actuator (set value ≤ 6bar), piston actuator (>6bar) | Flange standards GB9113-88, JB/T79-94, GB2555-81 | |
| Adjustment accuracy ± 5% | Specially made flange ANSI, JIS, DIN | |
| Function attachment options | fluid temperature | C3 group -30 ℃~150 ℃ |
| – With condenser (suitable for high-temperature media such as steam) | C4 group -30 ℃~180 ℃ | |
| – Equipped with a commander and micro pressure adjustment | C7 group -30 ℃~350 ℃ | |
| Main technical parameters and performance indicators | ||||||||||||||
| Nominal diameter DN (mm) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |
| Rated flow coefficient Kv | 7 | 11 | 20 | 30 | 48 | 75 | 120 | 190 | 300 | 480 | 760 | 1100 | 1750 | |
| Rated stroke (mm) | 8 | 10 | 14 | 20 | 25 | 40 | 50 | 60 | 70 | |||||
| Pressure regulation range (KPa) | 15～50 40～80 60～100 80～140 120～180 160～220 200～260 240～300 280～350 330～400 380～450 430～500 480～560 540～620 600～700 680～800 780～900 880～1000 980～1500 1000～2500 | |||||||||||||
| Allowable leakage | Hard seal (l/h) | Single seat: ≤ 10-4 valve rated capacity (Class IV); Double seat, sleeve: ≤ 5 × 10 ˉ 3 valve rated capacity (Class II) | ||||||||||||
| Soft seal (ml/h) | 0.15 0.30 0.45 0.60 0.90 1.7 4.0 6.75 11.10 16.0 | |||||||||||||
| Pressure reduction ratio | maximum | 10 | ||||||||||||
| minimum | 1.25 | |||||||||||||
| Dimensions and weight unit: mm | |||||||||||||||
| Nominal diameter DN | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | ||
| Flange connection size B | 383 | 512 | 603 | 862 | 1023 | 1380 | 1800 | 2000 | 2200 | ||||||
| Flange end distance L | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 | 730 | 850 | ||
| press | 15-140 | H | 475 | 520 | 540 | 710 | 780 | 840 | 880 | 915 | 940 | 1000 | |||
| force | A | 280 | 308 | ||||||||||||
| tune | 280-500 | H | 455 | 500 | 520 | 690 | 760 | 800 | 870 | 880 | 900 | 950 | |||
| section | A | 230 | |||||||||||||
| Fan | 120-300 | H | 450 | 490 | 510 | 680 | 750 | 790 | 860 | 870 | 890 | 940 | |||
| enclose | A | 176 | 194 | 280 | |||||||||||
| KPa | 480-1000 | H | 450 | 480 | 670 | 740 | 780 | 850 | 860 | 880 | 930 | ||||
| A | 176 | 194 | 280 | ||||||||||||
| 600-1500 | H | 445 | 570 | 600 | 820 | 890 | 950 | 1000 | 1100 | 1200 | |||||
| A | 85 | 96 | |||||||||||||
| 100-2500 | H | 445 | 570 | 600 | 820 | 890 | 950 | 1000 | 1100 | 1200 | |||||
| A | 85 | 96 | |||||||||||||
| Weight kg | 26 | 37 | 42 | 72 | 90 | 114 | 130 | 144 | 180 | 200 | 250 | ||||
| Pressure connector thread | M16*1.5 | ||||||||||||||
*We respect your confidentiality and all information are protected.
I’m Leo, the head of sales team at Huaxiang. Me and my team would be happy to meet you and learn all about your business, requirements and expectations.
*We respect your confidentiality and all information are protected.
I’m Leo, the head of sales team at Huaxiang. Me and my team would be happy to meet you and learn all about your business, requirements and expectations.
