Pneumatic Diaphragm Modulating Control Valve WCB Carbon Steel For Steam

Price Negotiable

Price: CN¥490.73/Pieces

MOQ: 1 Pieces

Delivery Time: 5-8 Work Days

Brand: SONGO

Product Description

Overview of Pneumatic Diaphragm WCB Carbon Steel Modulating Control Valve:

Pneumatic diaphragm WCB carbon steel modulating control valve are automatic control devices powered by compressed air, mainly used for precisely regulating the pressure, flow rate, temperature and liquid level parameters of media such as gas, liquid and steam. The pneumatic diaphragm WCB modulating valve adopts a top-guided structure and is composed of a multi-spring pneumatic diaphragm actuator and a low-flow-resistance single-seat valve body. The height and weight of the actuator are both reduced by 30%, featuring sensitive operation, compact structure, and easy disassembly and assembly. The pneumatic diaphragm carbon steel control valve body adopts an S-shaped flow channel design and is optimized through fluid analysis, featuring low pressure drop loss and large valve capacity, with an adjustable ratio of up to 50:1

The Principle Of Pneumatic Diaphragm Carbon Steel Modulating Control Valve:

Pneumatic diaphragm WCB carbon steel modulating control valves are widely used to precisely control the process parameters of gases, liquids and other media, maintaining pressure, flow rate, temperature and liquid level at the given values. Pneumatic diaphragm carbon steel modulating control valves are particularly suitable for applications where the allowable leakage is small and the pressure difference before and after the valve is not significant. The leakage standards of pneumatic diaphragm WCB control valve are classified as Grade IV or Grade VI, and the flow characteristics of pneumatic diaphragm WCB carbon steel flange control valves are linear or equal percentage. Pneumatic diaphragm WCB carbon steel modulating valves come in a wide variety of types and specifications to choose from.

Main Components Material Of WCB Carbon Steel Pneumatic Diaphragm Modulating Control Valve :

Structure Diagram And Main Components Material
Component Name	Material
Valve Body / Bonnet	WCB / WCC / WC6 / CF8 / CF8M / CF3M
Valve Spool / Seat	304 / 316 / 316L (Overlaying Stellite Alloy)
Packing	Normal:-196～230°C is PTFE , Special:＞230°C is Flexible Graphite
Gasket	Stainless Steel With Flexible Graphite
Valve Stem	2Cr13 / 17-4PH / 304 / 316 / 316L
Diaphragm	NBR With Reinforced Polyester Fabric
Spring	Normal:60Si2Mn , Special:50CrVA
Diaphragm Cover	Normal:Q235 , Special:304

Main Features ( Accord With GB/T 4213-2008 Standard) Of Pneumatic Control Valve:

Main Features ( Accord With GB/T 4213-2008 Standard)
No.	Item		Without Positioner	Positioner
				Standard Type	Heat Dissipation / Cryogenic Type
1	Intrinsic Error<(%)		±8.0	±1.5	±2.5
2	Hysteresis Error<(%)		-	1.5	2.5
3	Dead Band<(%)		6	0.6	1
4	Initial Point Deviation	Air to Open	±4.0	±2.5	±2.5
		Air to Close	-	±2.5	±2.5
5	End Point Deviation	Air to Open	-	±2.5	±2.5
		Air to Close	±4.0	±2.5	±2.5
6	Rated Stroke Deviation<(%)		+4.0	+2.5	2.5
7	Permitted Leakage Volume	Hard Seal	Level IV
		Soft Seal	Level VI

Main Technical Data Of Pneumatic Diaphragm WCB Carbon Steel Control Valve:

Main Technical Data
Nominal Diameter (Inch)		3/4"							1"	1-1/4"	1-1/2"	2"	2-1/2"	3"	4"	5"	6"	8"
Nominal Diameter (mm)		3/4" 20							25	32	40	50	65	80	100	125	150	200
Seat Diameter DN(mm)		5	7	8	10	12	15	20	25	32	40	50	65	80	100	125	150	200
Rated flow coefficient Kv(m³/h)	Linearity	0.2	0.5	0.8	1.8	2.8	4.4	6.9	11	17	27	44	69	110	176	275	440	690
Rated flow coefficient Kv(m³/h)	Equal Percentage	-	-	-	1.6	2.5	4	6.3	10	16	25	40	63	100	160	250	400	630
Rated Stroke L (mm)		10			16					25			40			60
Actuator Model (Direct Acting)		SGMA-1								SGMA-2			SGMA-3			SGMA-4
Actuator Model (Reverse Acting)		SGMB-1								SGMB-2			SGMB-3			SGMB-4
Working Temperature (°C)	Standard Type	-20°C～230°C
	Heat Dissipation Type	230°C～350°C(Cast Steel) / 230°C～450°C(Stainless Steel)
	High Temp Type	450°C～595°C
	Cryogenic Type	-60°C～-100°C / -100°C～-196°C
	Cut-off Type	-20°C～150°C(PTFE Seal) / -20°C～230°C(PPL Seal)
	Bellows Type	-20°C～350°C / -20°C～150°C(PTFE Seal) / -20°C～230°C(PPL Seal) / -60°C～-100°C / -100°C～-196°C
Nominal Pressure PN	Bar	16/25/40/63/100
Nominal Pressure PN	LB	ANSI: CL150LB / 300LB /600LB

External Dimension Of WCB Carbon Steel Pneumatic Diaphragm Flange Control Valve:

Standard Type / Heat Dissipation Type / Bellows Seal Type

External Dimension And Weight Of Standard Type / Heat Dissipation Type / Bellows Seal Type Unit: mm
Nominal Diameter (Inch)		G3/4"	3/4"	1"	1-1/4"	1-1/2"	2"	2-1/2"	3"	4"	5"	6"	8"
Nominal Diameter (mm)		G3/4"	20	25	32	40	50	65	80	100	125	150	200
L(Series One)	ANSI150	120	180	185	200	222	280	286	298	345	410	465	555
	ANSI300	120	194	197	213	235	267	292	317	368	425	473	610
	ANSI600	120	206	210	225	251	286	311	337	394	440	508	650
L(Series Two)	PN16～40	130	150	160	180	200	230	290	310	350	400	480	600
L(Series Two)	PN63～100	130	230	230	260	260	300	340	380	430	500	550	650
D2		280			310			400			500
H1	PN16～40	126	126	126	134	157	167	199	214	230	263	293	358
H1	PN63～100	138	138	138	142	165	187	204	219	240	280	300	364
H2		270			285			322			450
H3/H4	PN16～40	286	286	286	302	325	335	437	452	467	524	554	620
	PN16～40	286	286	286	302	325	335	437	452	467	524	554	620
	PN63～100	298	298	298	310	333	345	442	457	478	541	561	625
H5	PN16～40	43	43	48	57	66	80	92	100	120	134	156	200
	PN16～40	43	43	48	57	66	80	92	100	120	134	156	200
	PN63～100	50	50	54	60	70	84	97	105	125	138	163	205
D1		220						265			315
H6		180						240			305
Weight(kg)	PN16～40	18	20	22	24	32	38	62	67	83	132	160	245
Weight(kg)	PN63	23	24	25	30	42	52	78	82	102	170	190	285
Note: 1.The unit of nominal pressure(PN) in the table above is bar. 2.The weight in the table above is standard data without accessory, flange end to end distance L is made as default series one. 3.Flange is made according to JB/T79, can also be customized, such as GB/T9113,HG/T20592,ANSI,JIS,DIN and so on.

External Dimension Of WCB Carbon Steel Pneumatic Diaphragm Flange Control Valve:

Cryogenic Type

External Dimension And Weight Of Cryogenic Type Unit: mm
Nominal Diameter (Inch)		G3/4"	3/4"	1"	1-1/4"	1-1/2"	2"	2-1/2"	3"	4"	5"	6"	8"
Nominal Diameter (mm)		G3/4"	20	25	32	40	50	65	80	100	125	150	200
L(Series One)	ANSI150	120	180	185	200	222	280	286	298	345	410	465	555
	ANSI300	120	194	197	213	235	267	292	317	368	425	473	610
	ANSI600	120	206	210	225	251	286	311	337	394	440	508	650
L(Series Two)	PN16	130	150	160	180	200	230	290	310	350	400	480	600
L(Series Two)	PN63	130	230	230	260	260	300	340	380	430	500	550	650
D4		280			310			400			500
H1		500/700/900						600/800/1000			700/900/1100
H2		270			285			320			450
H3		45	45	45	45	45	45	60	60	60	60	75	90
H5	PN16～40	43	43	48	57	66	80	92	100	120	134	156	200
H5	PN63～100	50	50	54	60	70	84	97	105	125	138	163	205
D1	PN16～40	160	260	260	285	305	340	370	405	460	525	590	700
D1	PN63～100	305	305	305	340	370	405	460	525	590	700	700	805
D2	PN16～40	190	290	290	315	335	370	400	435	490	555	630	740
D2	PN63～100	335	335	335	370	400	435	490	555	630	740	740	845
h		6	6	6	6	6	6	6	6	6	10	10	10
n-d	PN16～40	-	8-14	8-14	8-14	8-16	8-16	10-16	10-16	12-18	14-18	16-18	18-18
n-d	PN63～100	-	8-16	8-16	8-16	10-16	10-16	12-18	14-18	16-18	18-18	18-18	18-18
D3		220						265			315
H6		180						240			305
Weight(kg) PN16		39	40	48	52	60	68	90	105	143	210	280	315
Note: The unit of nominal pressure(PN) in the table above is bar.

Pneumatic Diaphragm Actuator Acting Comparison:

Direct Acting (Air To Close)	Reverse Acting (Air To Open)
Spindle Movement With Increase In Air Pressure	Spindle Movement With Increase In Air Pressure
Spring Retract Normally Open	Spring Extend Normally Closed
Fail To Close FO	Fail To Close FC

29 Years Valve Factory Founded In 1996:

Good Feedback From 12382 Clients:

No Worries After Buy Our Valves With Our Engineers:

R & D Team Technical Supporting:

Frequently Asked Questions:

● Q1: ARE YOU A MANUFACTURER OR A TRADE COMPANY?

A1: We are a 29 years professional valve automation integration valve manufacturer, we produce and sale directly from our factory.

● Q2: IS THERE A TECHNICAL ENGINEER'S GUIDE FOR INSTALLATION BEFORE OR AFTER SALE?

A2: Yes, no worries. Our technical engineer will remote video, installation guide, commissioning valve.

● Q3: WHAT IS YOUR TERMS OF PAYMENT?

A3: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

● Q4: WHAT IS YOUR TERMS OF DELIVERY?

A4: EXW, FOB, CFR, CIF, DAP, DDP.

● Q5: HOW ABOUT YOUR DELIVERY TIME?

A5: Generally, it will take 2 to 5 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

● Q6: DO YOU TEST ALL YOUR GOODS BEFORE DELIVERY?

A6: Yes, we have 100% test before delivery.

● Q7: HOW DO YOU MAKE OUR BUSINESS LONG-TERM AND GOOD RELATIONSHIP?

A7: We keep good quality and competitive price to ensure our customers benefit; we respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

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Company Shenzhen Songo Automation Co., Ltd.

Location C3 BLDG, Shangzao VLG, Dalang ST, Longhua DIST, Shenzhen City, Guangdong Province, China, Zip Code 518109

Contact Person Kevin Lin

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