Szxt Pneumatic Film Regulating Valve/Pneumatic Diaphragm Regulating Valve

• Temperature: Ordinary Temperature
• Certification: GS
• Media: Gas, Oil, Water, Acid
• Standard: Standard
• Connection Mode: Flange
• Power: Pneumatic
• Model NO.: SZXT
• Material: Carbon Steel
• Type: Single Seater
• Use: Adjust
• Pressure: Normal Pressure
• Port of Ningbo: Class IV (Standard, Metal Seat)
• Body Type: Straight Through, Angle, Z Shape
• Transport Package: Wooden Box
• Specification: DN15-DN500
• Trademark: xc
• Origin: China
• HS Code: 8481804090
• Production Capacity: 10000

Product Description

SZXT pneumatic diaphragm regulating valve
SZXT pneumatic film diaphragm regulator
Overview of pneumatic film Diaphragm regulator
SZXT, SZST pneumatic diaphragm regulator, piston diaphragm regulator (referred to as pneumatic diaphragm valve) using diaphragm and valve body between the "mountain" convex surface to seal, isolated from the outside (no packing box), valve body flow path is simple, smooth, can cover the anti-corrosion layer, This series of products nominal pressure rating is 0.6, 1.0MPa, valve body diameter range from 20~200mm, applicable temperature range within 150ºC, leakage is zero

Pneumatic control valve model: SZXT AZST	Pneumatic regulating valve nominal diameter: 20MM-200MM	Pneumatic control valve use pressure: 1.6MPA-2.5MPA
Pneumatic regulating valve connection mode: flange connection	Pneumatic control valve form: pneumatic	Pneumatic regulating valve main function: control flow
Pneumatic regulating valve medium: all kinds of media	Pneumatic control valve material: WCB cast steel stainless steel	Pneumatic control valve standard: mechanical department standard or custom non-standard

Pneumatic film diaphragm regulating valve product characteristics
ZXT type adopts multi-spring actuator, height and weight can be reduced by 30%. The inner surface of the valve body is coated with a variety of materials to avoid direct contact with the medium and withstand the corrosion of the corrosive medium of the strong valve. When the valve is closed, the amount of internal and external leakage is zero, especially suitable for highly toxic media or do not allow the pollution of the media of the valve joint. The flow path is simple, the resistance is small, the rated flow coefficient is larger than the same caliber single seat, the sleeve regulating valve.
Pneumatic film diaphragm regulating valve parts materials
Main parts materials: Valve body: HT200, ZG230~450 or the material lining
Diaphragm: butyl rubber, natural rubber, PTFE corrugated

film: nitrile rubber clip reinforced polyester fabric

spring: 60S12Mn valve body lining material and scope of application



 

Valve Body lining	Service temperature (° C)	Applicable medium
Unlined	- 10 ~ + 175	Suitable for non-corrosive media
Soft rubber	- 10 ~ + 85	Has good wear resistance, suitable for cement, clay, coal dust, dry fertilizer, etc
Hard rubber	- 10 ~ + 85	Suitable for no machinery, salts, hydrochloric acid, gold plated solution, soft water, chloride, chlorine gas, etc
Chloroprene adhesive	- 10 ~ + 105	Suitable for animal oil, vegetable oil and lubricating oil, PH range wide corrosive mud. Good resistance to wear
Butyl gum	- 10 ~ + 120	Good corrosion resistance and wear resistance, best corrosion resistance to most inorganic acids and acid mortar
Enamel	- 10 ~ + 175	It is suitable for warm inorganic acids, oxidizing acids, halogens, alcohols, esters and other compounds
Fluoride 46	- 10 ~ + 190	Suitable for strong corrosive media such as sulfuric acid, hydrochloric acid and sodium hydroxide

Pneumatic film diaphragm regulating valve diaphragm material and scope of application

Diaphragm material	Temperature to use (° C)	Applicable medium
Butyl gum (Grade B)	- 40 ~ + 100	Most inorganic acids such as: sulfuric acid,  acid, phosphoric acid, etc., good corrosion resistance, while a variety of alkali and salt
Natural glue (Q grade)	- 50 ~ + 100	Mineral acid medium mainly used for purifying water, inorganic salts and alene
rubber	- 10 ~ + 150	Excellent chemical stability, resistance to strong acid, concentrated alkali, strong oxidant corrosion

Pneumatic film diaphragm regulating valve main technical parameters

Nominal diameter DN (mm)		20	25	32	40	50	65	80	100	125	150	200
Rated flow coefficient Kv	Unlined	9.8	19	32	48	63	108	158	270	360	518	1114
	Lined	7.8	17	28	41	55	87	127	240	311	415	1121
Rated stroke L (mm)		8	10	12	16	24	30	34	36	44	55	65
Effective diaphragm area Ae(cm 2)		280		400			600			1000
Piston diameter (mm)		100		125			160			250
Nominal pressure PN(MPa)		0.6 1.0
Inherent flow characteristics		Approximate equal percentage
Operating temperature (° C)		150 or less
Signal range Pr(KPa)		20~100, 40~200, 400~600
Allowable leakage		Zero leakage within the allowable differential pressure range

The actuator listed in the table is standard configuration and can be selected according to the process requirements.
Installation of pneumatic diaphragm regulating valve
Flange standard: Cast iron flange according to GB4216-84
Cast steel flange according to GB9113-88
Flange sealing surface type: convex
Actuator gas signal connector: internal thread M16×1.5
Structure length: GB12221-89
Valve body flange end distance and flange standards can also be manufactured according to user specified standards such as ANSI, JIS, DIN and other standards
Control valve order instructions
User's order needs to provide regulating valve medium, regulating valve before pressure, valve after setting pressure, maximum flow/hour, pressure difference/flow ratio, determine the valve size/connection mode standard maximum stroke open stroke flow regulation ratio pressure fluctuation (precision) pressure/temperature ratio, maximum temperature resistance, valve body material switch state (on and off), pressure grade, internal leakage rate Valve body structure/regulating valve working principle/regulating valve installation instructions and other related technical data when the occasion is very important or the environment is more complex, please try to provide design drawings and detailed parameters, by our Xuan Cheng valve company experts for you to review and check thank you for visiting our website [Xuan Cheng valve company] if you have any questions. You can call us, we will do our best to provide you with quality service.

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Pneumatic three-way regulating valve

Xuan cheng valve after-sales service commitment
For your company in Xuan Cheng valve order valve products, our factory in the after-sales service to make the following commitment:
First, our company implements three guarantees for product quality, namely: guarantee quality, guarantee replacement, warranty;
Two, after signing the contract, guarantee the quality, quantity, delivery on time;
Three, the company to ensure that the valve products to meet the contract indicators
Iv. Provide answers to the technical consultation of the demander at any time;
5. When delivering the equipment, our factory shall deliver the following materials to the demander: shipping list, product qualification certificate, product sample, product instruction manual and technical data;
When receiving the letter or phone call of the customer's response to the quality problem, we guarantee to reply within 24 hours to solve the problem.