Self-operated Pressure Control Valve adopts external pressure structure, which can automatically adjust and stabilize the pressure depending on the pressure change of the medium itself. It is suitable for liquid, steam, non–corrosive gas and low–viscosity liquid with nominal diameter DN100, P1=1.0MPa, P2=15KPa, pressure reduction ratio is =10, =1.25.
This series is divided into two types: valve rear type ZZYP–B and valve front type ZZYP–K.
| Manner | Fluid Pressure Balance Type Trim |
|---|---|
| Nominal Diameter | 15, 20, 25, 40, 50, 65, 80, 100 mm |
| Nominal Pressure | ANSI Class 150, 300; JIS 10K, 20K; PN 1.6, 4.0 MPa |
| Type of Connection | Flange Type (JIS B2201-1984; JB/T79.1-94; ANSI B16.5-2009; HG20592-2009; HG20615-2009) |
| Trim Material / Trim Treatment | Operating temperature and pressure range depend on various material combinations |
| Body and Bonnet Material | SCHP2/WCB, SCS13A/CF8, SCS14A/CF8M; operating temperature and pressure range depend on material |
| Packing | V-Type PTFE Packing, Graphite Packing |
| Gasket | Asbestos-Free Rubber Sheet |
| Nominal Diameter (DN) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 |
|---|---|---|---|---|---|---|---|---|---|
| Rated Flow Cv Value (Kv) | 5 | 7 | 11 | 20 | 30 | 48 | 75 | 120 | 190 |
| Rated Stroke (mm) | 8 | 8 | 8 | 10 | 10 | 14 | 20 | 20 | 25 |
| Range of Pressure Segment (kPa) | colspan=9: 15 |
Note: Rated Kv Can Also Choose 0.12, 0.2, 0.3, 0.5, 0.8, 1.2, 2.0, 3.2
| Item | Diaphragm Type | Cylinder Type |
|---|---|---|
| Diaphragm / Piston Material | Nitrile Rubber | Aluminum Alloy |
| Service | Regulation | Regulation |
| Connector | M16 × 1.5 | M16 × 1.5 |
| Minimum Differential Pressure | Δp ≥ 0.04 MPa | Δp ≥ 0.04 MPa |
| Pressure Adjustable Range | ≤ 0.5 MPa | 0.5 ~ 1.0 MPa |
| Operating Temperature | -5 ~ 350 °C | -5 ~ 350 °C |
| Standard Coating Color | Grey | Grey |
| Nominal Diameter (DN) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rated Flow Cv Value (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 | ||||
| Nominal Pressure | colspan=13: PN16, PN40, PN64; CLASS150LB–300LB | ||||||||||||
| Adjusting Range of Pressure Difference (kPa) | colspan=13: 15–50, 40–80, 60–140, 120–220, 160–220, 200–260, 240–300, 280–350, 330–400, 380–450, 480–560, 540–620, 600–700, 680–780, 780–900, 880–1000, 950–1500, 1000–2500 | ||||||||||||
| Flow Characteristic | colspan=13: Quick-opening | ||||||||||||
| Accuracy of Adjustment | colspan=13: ±5–10% | ||||||||||||
| Operating Temperature | colspan=13: −40 °C (no condenser) ≤200 °C; with condenser ≤350 °C | ||||||||||||
| Allowable Leakage (Soft Seat, L/h) | 0.15 | 0.3 | 0.45 | 0.6 | 0.9 | 1.7 | 4 | 6.75 | 11.1 | 16 | |||
| Pressure Reducing Ratio (Max) | colspan=13: 10 | ||||||||||||
| Pressure Reducing Ratio (Min) | colspan=13: 1.25 | ||||||||||||
| Minimum Upstream Pressure (kPa) | 30 | 50 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | ||||
| Downstream Pressure Range (kPa) | 15–24 | 15–40 | 15–80 | 15–120 | 20–160 | 25–200 | 30–240 | 35–280 | 40–320 | ||||
| Upstream Pressure (kPa) | 450 | 500 | 550 | 600 | 650 | 700 | 750 | 800 | 850 | ||||
| Downstream Pressure (kPa) | 45–360 | 50–400 | 55–440 | 60–480 | 65–520 | 70–560 | 75–600 | 80–640 | 85–680 | ||||
| Upstream Pressure (kPa) | 900 | 950 | 1000 | 1250 | 1500 | 2000 | 2500 | 3000 | |||||
| Downstream Pressure (kPa) | 90–720 | 95–760 | 100–800 | 125–1000 | 150–1200 | 200–1600 | 250–2000 | 300–2400 |
Body Material: Carbon Steel
| Item | Specification |
|---|---|
| Body Material | SCHP2 / A216-WCB |
| Core | SUS304 |
| Seat | SUS304 |
| Bellows | SUS304 |
| Diaphragm | Nitrile Rubber |
| Piston | Aluminum Alloy |
| Gasket | Asbestos-Free Rubber Sheet |
| Operating Temperature | -5 ~ +350 °C |
Body Material: Stainless Steel
| Item | Specification |
|---|---|
| Body Material | SCS13A / CF8, SCS14A / CF8M |
| Core | SUS316 |
| Seat | SUS316 |
| Bellows | SUS316 |
| Diaphragm | Nitrile Rubber |
| Piston | Aluminum Alloy |
| Gasket | Asbestos-Free Rubber Sheet |
| Operating Temperature | -5 ~ +350 °C |
Unit:mm
| Item | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 |
|---|---|---|---|---|---|---|---|---|---|
| Nominal Diameter (DN) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 |
| Length of Flange Connection Tube (L1) | 383 | 383 | 383 | 512 | 512 | 603 | 862 | 862 | 1023 |
| Flange End Face to Face (L) | 150 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 |
| H1 | 32 | 32 | 36 | 58 | 58 | 62 | 75 | 85 | 105 |
| Range of Pressure Regulation (kPa) 15–140 H | 475 | 475 | 475 | 520 | 520 | 540 | 710 | 710 | 780 |
| Range of Pressure Regulation (kPa) 15–140 B | 280 | 280 | 280 | 310 | 310 | 310 | 310 | 310 | 310 |
| Range of Pressure Regulation (kPa) 120–300 H | 455 | 455 | 455 | 500 | 500 | 520 | 690 | 690 | 760 |
| Range of Pressure Regulation (kPa) 120–300 B | 195 | 195 | 195 | 230 | 230 | 230 | 230 | 230 | 230 |
| Range of Pressure Regulation (kPa) 280–500 H | 450 | 450 | 450 | 490 | 490 | 510 | 680 | 680 | 750 |
| Range of Pressure Regulation (kPa) 280–500 B | 176 | 176 | 176 | 176 | 176 | 176 | 200 | 200 | 200 |
| Range of Pressure Regulation (kPa) 480–1000 H | 445 | 445 | 445 | 480 | 480 | 480 | 670 | 670 | 740 |
| Range of Pressure Regulation (kPa) 480–1000 B | 176 | 176 | 176 | 176 | 176 | 176 | 200 | 200 | 200 |
| Weight (~kg) | 26 | 26 | 26 | 37 | 37 | 42 | 72 | 90 | 114 |
| Joint Thread of Connecting Pipe | colspan=9: M16 × 1.5 |
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