Pneumatic double diaphragm valve


Product model: G611X-10S

Nominal diameter: DN15-50mm

Air source interface: G1 / 4“

Nominal pressure: PN10

Applicable temperature: - 20 ~ + 60 ℃

Valve body material: Plastic PPH

Seat lining: Plastic PPH

Diaphragm material: EPDM + PTFE

Applicable medium: acid-base liquid


PRODUCT OVERVIEW

Pneumatic double diaphragm valve is composed of double diaphragm valve and pneumatic actuator. It takes compressed air as power to regulate the flow of fluid medium in process pipeline. Because the valve body with corrosion-resistant lining and corrosion-resistant diaphragm, stuffing box free structure, elastic diaphragm as throttling element and smooth flow channel of the valve body are adopted in the structure, the valve has the advantages of small resistance, large flow, no external leakage, convenience, reliability, fire and explosion prevention. It is widely applicable to strong acid, strong alkali, strong corrosion, high viscosity, containing glume Flow regulation of media with fibers and toxic and inadmissible contamination.


PRODUCT FEATURES

1. It is applicable to the transportation, closure and flow regulation of corrosive medium. The service temperature is - 14 ℃ ~ + 140 ℃ according to different materials.

2. The flow passage parts are assembled by RPP or PVDF injection molding parts, with excellent corrosion resistance.

3. The seal diaphragm is made of F46 or PFA, with folding resistance ≥ 12000 times and corrosion resistance equivalent to F4.

4. Screw lifting structure is adopted, with large opening and closing torque and good stability.


MAIN TECHNICAL PARAMETERS

Cylinder material

Corrosion resistant plastic cylinder

Action form

Single acting (normally closed, normally open)

air connection

G1/4"

Air source pressure

0.4-0.7MPa

Nominal diameter

DN15-50mm

Nominal pressure

1.0MPa

Applicable temperature

-10~+ 55℃

Connection mode

Double command connection

body material

UPVC

Diaphragm material

EPDMSingle layer or EPDM + PTFE double layer

Applicable media

Water, hydrochloric acid, sulfuric acid, hydroxide, sulfide, chemical agent, etc


Performance specification

caliberOperating temperature (℃)Mass (kg)
mmRPPPVCASBUPVCPVDFCPVCRPPPVCASBUPVCPVDFCPVC
DN151000.6900.61200.60.80.80.80.81.20.8
DN201000.6900.61200.60.90.90.90.91.60.9
DN251000.6900.61200.61.01.01.01.01.81.0
DN321000.6900.61200.60.30.30.30.32.40.3
DN401000.6900.61200.60.80.81.81.830.8
DN501000.6900.61200.62.52.52.62.63.92.5
DN651000.6900.61200.6555.15.17.85
DN801000.6900.61200.66.16.16.26.28.96.1
DN1001000.6900.61200.69.79.79.99.9159.7
DN1251000.4900.41200.413.513.513.813.82113.5
DN1501000.4900.41200.4252525.525.53725
DN2001000.4900.41200.436.536.537.237.25636.5




Pneumatic double diaphragm valve(图1)


MAIN OVERALL DIMENSIONS

caliberMD1LActuator
DN15432019655
DN20532522155
DN25603223485
DN32744025385
DN40835028485
DN5010363321105

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