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Pneumatic thin film cryogenic control valve

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Pneumatic thin film cryogenic control valve

Model: ZJHD-16/64D
Nominal diameter: DN20 ~ 200mm
Nominal pressure: PN1.6 ~ 6.4MPa
Temperature: -250 ~ 60 ℃
Main material: cast stainless steel (ZG1Cr18Ni9Ti, ZGOCr18Ni12Mo2Ti), etc.
Flange Standard: JB78-59, JB79- 59 standard, according to JB / T79.1-94, JB / 179.2-94, HG20592-2009, ANSI, JIS, DIN and other standards
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First, the main technical performance indicators

Leakage rate: single seat valve, small flow valve is less than the rated capacity of the valve 10-4

Double-seat valve, less than the rated capacity of the valve 5 × 10-3

Back to the difference: with locator, less than 3% of the full stroke             

Basic error: with locator, less than ± 3 full stroke                  

Note: The standard V-type PTFE packing.

 

Second, the main technical parameters

Nominal diameter (mm)




















Seat diameter (mm)345678910121520263240506680100125150200
Flow coefficient KVSmall flow valve0.080.120.200.300.500.801.00--------------
Single seat valve-------1.22.03.25.0813twenty two325080120200280450
Double seat valve-----------1016254072100160250400630
Rated travel (mm)1016254060
Adjustable range30: 1
Nominal pressureStandard products 1.6,4.0,6.4 MPa;
Spool formSingle, double-seat valve for the direct casting ball valve, a small flow valve forging valve
Flow characteristicsEqual percentage, straight line, quick opening
The role of formOpen air, gas off type
Operating temperature-250 ~ 60 ℃
Flange standardIn line with JB78-59, JB79-59 standards, according to JB / T79.1-94, JB / 179.2-94, HG20592-2009, ANSI, JIS, DIN and other standard order production
Execution agencyZMAB pneumatic film actuator, ZHAB small pneumatic film actuator
Can be equipped with accessoriesPositioner, Solenoid valve, Air filter regulator, Limit switch, Valve position feedback, Emergency action device, Hand wheel mechanism, etc.

 Note: The working temperature, the nominal pressure, the nominal diameter of the products beyond the scope of the list can negotiate with the Company to resolve.

 

Third, the medium temperature range

Nominal diameter 
takeover coordinate size H (mm) 
for the temperature range (℃)		D1D2D3
-60 ~ -100-100 ~ -200-200 ~ -250
G1 / 2 *, G3 / 4 *, 20 ~ 50500700900
65 ~ 1006008001000
125 ~ 2007009001100

 Note: The working temperature, the nominal pressure, the nominal diameter of the products beyond the scope of the list can negotiate with the Company to resolve.

 

Fourth, the main components and parts

Part nameBodyCore seatfiller
MaterialCast stainless steel (ZG1Cr18Ni9Ti, ZGOCr18Ni12Mo2Ti), etc.1Cr18Ni9Ti, OCr18Ni12Mo2T and so onV-type PTFE 

 

 

Fifth, flange distance and dimensions

Nominal diameterL (mm)H2 (mm)H1 (mm)D (mm)D1 (mm)D2D3nd
PN1.6PN4.0PN6.4Open airQi offSmall flow valve
single seat valve		Double seat valve
G1 / 2 *, G3 / 4 *8041236519-230135160190-
2018018019049244574-2802352602908-φ14
2518519020044099104235260290
32200210210443105107255285315
402202302354891171273252803053558-φ16
50250255265499132132310340370
6527528529564116517541034537541010-φ16
8030031032064416818537040544010-φ18
10035035537065317720243046049012-φ18
12541042544078422525049547052556016-φ18
150450460475782233260550590630
20055056057077927230266070074020-φ18

Live: Flange to meet JB79-59 standards

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