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SYV72 Cage Double-seat Sleeve Regulating Valve
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Product classification
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Product Details
SYV72
Cage-type double-seat sleeve regulating valve
Linear Stroke Regulating Valve
Product overview
SYV72 cage-type double-seat regulating valve produced by foreign technology is a pressure-balanced regulating valve. The fluid channel of the valve body is S-streamlined. It is also provided with a guiding wing to improve the smooth flow of liquid around the sleeve. Its advantages are small pressure drop loss, large flow rate and wide adjustable range, high precision of flow characteristic curve, good dynamic stability, low noise and small cavitation corrosion. The regulating valve is equipped with a multi-spring shaw-film actuator with compact structure and large output force.
Suitable for controlling high temperature and low temperature high pressure differential fluid.
Standard technical parameters
Valve body
Nominal diameter: 40-200mm
Nominal pressure: ANSI 125, 150, 300, 600
J1S10、16、20、30、40K
PN1.6、4.0、6.4MPa
Connection type: Flange type: FF, RF, RJ and LG
Standard as per ANSI B16.5,JIS B2201
JB/T79.1 PN1.6 MPa JB/T79.2
Concave-convex surface
Welding type: Slay welding SW(40~50mm)
Butt welding BW(65~200mm)
Material: ZG25
ZG1Cr18Ni9 ZGOCr17Ni12Mo2
1.25C0.5Mo 5.0C0.5Mo
SCPH21 SCPH61 Title
Upper valve cover: normal temperature type (P):-17~230 ℃
Elongation (E1):
-45~17 ℃ 230~566 ℃
Elongation type II (E2): monolithic (E21):-100 ~-45 ℃
Welding type (E2W):-196 ~-100 ℃
Corrugated type:-17~230 ℃
Gland type: bolt compression type
Packing: V-type PTFE packing, impregnated with PTFE
Asbestos packing, graphite braided packing.
implementing agency
Type: HA multi-spring membrane actuator.
Spring E:0.02~0.10,0.08 ~ 0.24MPa
Air supply pressure: 0.14,0.16,0.28,0.40MPa
Air supply connector: Rc1/4
Ambient temperature:-30~70 ℃
Valve action type: gas open or gas closed
Performance
Leakage: normal temperature type
Metal Seat: Conform to standard ANSI Class B16104II, ≤ 05% rated Cv,
Special requirements can be achieved level III, ≤ 01% rated Cv
Teflon Seat:
Comply with standard ANSI B16.104VI, ≤ 10 rated Cv.
Metal Seat:
Conform to ANSI B16.104II, ≤ 0.5% rated Cv,
Return difference: 3% (without locator)
1% (with locator)
Linearity: ± 5% (without positioner)
± 1% (with positioner)
Note: Use standard V-type PTFE packing.
Adjustable range
50:1
Note: high precision metal seat flow characteristics in accordance with 1EC534-2
Remarks:
1. P = normal temperature type, E1 = elongation type I, E2 = elongation type II, E21 = integral type, E2W = welding type.
2. The size of column H on the table is the value of adjusting width without handwheel mechanism. If it is equipped with top-mounted handwheel mechanism, the size of handwheel mechanism shall be added accordingly.
Check the technical parameter table of the HA actuator.
3. Elongate the size of E1 column of type I, with valves with JIS 10K and ANSI 125,150 on the left and valves with JIS 16K and ANSI 300 or more on the right.
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Address: 801-805 Jingshan Road, Guannan Industrial Zone, jimei district, Xiamen City
