Cage Type Single Seat Control Valve

cage type single seat control valve is a single seat control valve with high performance, and is suitable for occasion of flash distillation and cavitation by high differential pressure. The strong sleeve can keep body from flash and cavitation damage. The body and fluid channel are s–shaped, with small pressure drop loss, large flow, adjustable range.

The valve core has large guiding area and good vibration resistance. The control valve is equipped with multi–spring diaphragm actuator or electric actuator, and has compact structure, large output torque.

Standard Specification

Manner	Straight Through Casting Ball Valve
Nominal Diameter	25, 32, 40, 50, 65, 80, 100, 150, 200 mm
Nominal Pressure	ANSI Class 150, 300, 600; JIS 10K, 20K, 30K, 40K; PN 1.6, 4.0, 6.4 MPa
Type of Connection	Flange Type: FF, RF, RJ, TG, MFM; Weld Type: SW (40–50 mm), BW (65–200 mm)
Material of Body and Bonnet	SCPH2/WCB, SCPH21/WC6, SCS13A/CF8, SCS14A/CF8M, SCS16A/CF3M, Ti
Bonnet Manner	Normal Temperature (P): −17 ~ +230 ℃; Elongation Type I (EI): −45 ~ −17 ℃, +230 ~ +566 ℃; Elongation Type II (EII): −100 ~ −45 ℃
Gland Manner	Screw Fastening Type
Packing	V-type PTFE Packing, Graphite Packing
Gasket	Plain Type, Zigzag Type / Stainless Steel (SUS304, SUS316, SUS316L) and other Alloys
Surface Coating	Blue (Epoxy). When the valve body material is stainless steel, coating is not applied

Cv Valve and Stroke

Nominal Diameter	Seat Diameter	Rated Cv	Rated Stroke
25	15	4.0	16
25	20	6.3	16
25	25	10	16
32	15	4.0	16
32	25	10	16
32	32	17	16
40	15	4.0	25
40	20	6.3	25
40	25	12	25
50	20	6.3	25
50	25	12	25
50	32	21	25
65	25	12	40
65	32	21	40
65	40	30	40
80	32	21	40
80	40	30	40
80	50	50	40
100	40	30	40
100	50	50	40
100	65	85	40
150	65	85	60
150	80	125	60
150	100	200	60
200	80	125	60
200	100	200	60
200	125	310	60

Actuator

Item	Pneumatic Diaphragm Type	Cylinder Piston Type	Electronic Type	Intelligent Type
Model	ZJHA/B	ZTCLS / ZTCL	381 Series	ZM Series
Structure	Multiple Springs Type	Single Action / Double Action	—	—
Service	Regulation	Regulation	Regulation	Regulation
Supply Gas Pressure / Supply Voltage	Supply Gas Pressure (spring range): 140(20–100) kPa / 160(20–100) kPa / 280(80–240) kPa / 400(80–240) kPa	Supply Gas Pressure: 300–500 kPa	Voltage: 220/380 V 50 Hz; Input Signal: 4–20 mA DC	Voltage: 220/380 V 50 Hz; Input Signal: 4–20 mA DC
Connector	Air Piping: RC1/4	Air Piping: G1/8, G1/4, G1/2, G3/8	Wiring: PG13.5	Wiring: PG13.5
Positive Action	Adding Pressure – Valve Will Be Closed	Adding Pressure – Valve Will Be Closed	Inputting the Signal – Valve Will Be Closed	Inputting the Signal – Valve Will Be Closed
Negative Action	Adding Pressure – Valve Will Be Opened	Adding Pressure – Valve Will Be Opened	Inputting the Signal – Valve Will Be Opened	Inputting the Signal – Valve Will Be Opened
Hysteresis	≤1% FS (with positioner) / ≤3% FS (no positioner) / ≤5% FS (HA1 type)	≤1% FS (with positioner) / ≤3% FS (no positioner)	=1% FS	=1% FS
Intrinsic Error	≤1% FS (with positioner) / ≤2% FS (HA1 type) / ≤5% FS (no positioner)	≤1% FS (with positioner) / ≤5% FS (no positioner)	=1% FS	=1% FS
Ambient Temperature	Standard: −30 ~ +70 °C; High Temperature Type: 0 ~ +100 °C; Low Temperature Type: −40 ~ +40 °C	Standard: −20 ~ +60 °C; High Temperature Type: 0 ~ +100 °C; Low Temperature Type: −50 ~ +60 °C	−20 ~ +70 °C	−25 ~ +70 °C
Painting Color	Blue Scale 10B5/10	Blue Scale 10B5/10	—	—
Accessory	Positioner / Air Filtration / Pressure Reducing Valve / Transmitter / Handwheel	Positioner / Air Filtration / Pressure Reducing Valve / Transmitter / Handwheel	Integrated Type	Integrated Type

Model Selection Parameter Table

Rated Flow Cv Value

Seat Diameter (mm)	25	32	40	50	65	80	100	125	150	200
Equal Percentage Cv	10	17	24	40	63	100	160	250	400	630
Straight Cv	11	17.6	27.5	44	69	110	176	275	440	690

Optional Coefficient Of Flow Cv

(★ standard Type • recommend Type ○ customized Type)

Nominal Diameter	Stroke	25	32	40	50	65	80	100	125	150	200
DN25	16 mm	★
DN32	16 mm	○	★
DN40	25 mm	○	•	★
DN50	25 mm	○	•	•	★
DN65	25 mm		○	○	○	★
DN80	40 mm		○	○	○	•	★
DN100	40 mm		○	○	○	•	•	★
DN125	40 mm					○	○	○	★
DN150	60 mm						○	○	•	★
DN200	60 mm						○	○	•	•	★
DN250	60 mm								○	•	•
DN300	100 mm									○	•

Pneumatic Actuator Diaphragm Active Area Ae (cm²)

Model	Active Area
ZHA/B-22	350
ZHA/B-23	350
ZHA/B-34	560
ZHA/B-45	900

Allowable Pressure Differential of Metal Seal (MPa)

Range of Spring	25	32	40	50	65	80	100	125	150	200
20–100 KPa	3	2.25	2.25	1.95	2.36	2.04	1.67	1.41	1.41	1.14
40–200 KPa	6.4	6.4	6.4	6.4	6.4	6.4	6.4	6.4	6.4	6.4
80–240 KPa	6.4	6.4	6.4	6.4	6.4	6.4	6.4	6.4	6.4	6.4

Range of Spring	25	32	40	50	65	80	100	125	150	200
20–100 KPa	1.5	1.13	1.13	0.98	1.18	1.02	0.84	0.71	0.71	0.57
40–200 KPa	4.5	3.38	3.38	2.93	3.54	3.06	2.51	2.12	2.12	1.71
80–240 KPa	6.4	6.4	6.4	6.4	6.4	6.4	5.85	4.94	4.94	4

Typical Flow Characteristic of Valve

Cage Type Single Seat Control Valve

The Material of Valve and Components, Range of Using Temperature · Allowable Leakage of Seat

Body Material: Carbon Steel

Category	Item	Property	SCPH2/A216-WCB	SCPH21/A217-WC6	SCPL1/A352-LCB
Body Material	Body	Material	SCPH2/A216-WCB	SCPH21/A217-WC6	SCPL1/A352-LCB
Core	Core	Material	SUS304/316	SUS304/316	SUS304/316
Core	Core	Treatment	—	R.TFE	SS/SF
Seat	Seat	Material	SUS304/316	SUS304/316	SUS304/316
Seat	Seat	Treatment	—	—	SS/SF
Guide Sleeve	Guide Sleeve	Material	SUS420	SUS420	SUS420
Guide Sleeve	Guide Sleeve	Treatment	HT	HT	HT
Gasket	Gasket	Material	SUS316L	SUS316L	SUS316L
Allowable Leakage of Seat	ANSI	Leakage Class	CLASS IV	CLASS VI	CLASS IV
Allowable Leakage of Seat	Rated Cvx	Leakage Rate	0.01%	Bubble-Tight	0.01%
Operating Temperature (°C)	SCPH2/WCB Body	Temperature Range	−17 ~ +425	−17 ~ +230	−17 ~ +425
Operating Temperature (°C)	SCPH21/WC6 Body	Temperature Range	−17 ~ +566	−17 ~ +230	−17 ~ +566
Operating Temperature (°C)	SCPL1/LCB Body	Temperature Range	−45 ~ +350	−45 ~ +230	−45 ~ +350

Body Material: Stainless Steel

Category	Item	Property	SCS13A/CF8	SCS14A/CF8M	SCS16A/CF3M
Body Material	Body	Material	SCS13A/CF8	SCS14A/CF8M	SCS16A/CF3M
Core	Core	Material	SUS304/316/316L	SUS304/316	SUS304/316/316L
Core	Core	Treatment	—	R.TFE	SS/SF
Seat	Seat	Material	SUS304/316/316L	SUS304/316/316L	SUS304/316/316L
Seat	Seat	Treatment	—	—	SS/SF
Guide Sleeve	Guide Sleeve	Material	SUS304/316/316L	SUS304/316/316L	SUS304/316/316L
Guide Sleeve	Guide Sleeve	Treatment	—	R.TFE	ST
Gasket	Gasket	Material	SUS316L	SUS316L	SUS316L
Allowable Leakage of Seat	ANSI	Leakage Class	CLASS IV	CLASS VI	CLASS IV
Allowable Leakage of Seat	Rated Cvx	Leakage Rate	0.01%	Bubble-Tight	0.01%
Operating Temperature (°C)	Temperature Range	Range	-196 ~ +566	-45 ~ +230	-196 ~ +566

R.TFE : Reinforced PTFE HT : Heat Treatment ST : Surfacing Sitalai Alloy SS : Partial Surfacing Sitalai Alloys SF : All Surfacing Sitalai Alloys

Outline Drawing

Cage Type Single Seat Control Valve

Appearance Dimension

Unit:mm

DN (inch)	DN (mm)	L ANSI150 (GB/T12221)	L ANSI150 (GB/T17213.3)	L ANSI300 (GB/T17213.3)	L ANSI600 (GB/T17213.3)	H1	H2	H3	Electrical Actuator	Pneumatic Actuator
1 1/2	40	200	222	235	251	56	163	302	381LSB-30	ZJHA/B 23
2	50	230	254	267	286	73	165	302	381LSB-30	ZJHA/B 23
2 1/2	65	290	276	292	311	83	217	375	381LSB-50	ZJHA/B 34
3	80	310	298	317	337	102	235	375	381LSB-50	ZJHA/B 34
4	100	350	352	368	394	110	236	375	381LSB-50	ZJHA/B 34
5	125	400	400	425	500	146	340	465	381LSC-99	ZJHA/B 45
6	150	480	451	473	508	170	340	465	381LSC-99	ZJHA/B 45
8	200	600	543	568	610	220	383	465	381LSC-99	ZJHA/B 45

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Cage Type Single Seat Control Valve