ZJHP-16F46 Pneumatic thin film lined PTFE single seat regulating valveDetailed product description：

1、 Product Overview
The ZJHP-16F46 pneumatic thin film lined PTFE single seat regulating valve is the execution unit in automatic control instruments. It consists of two parts: a pneumatic thin film actuator and a straight through single seat fluorine lined plastic valve. Due to the high-pressure injection molding process used in the parts of the valve that come into contact with the medium, lined with corrosion-resistant and aging resistant polytetrafluoroethylene (F46), and sealed with polytetrafluoroethylene bellows, this valve is widely used for process control of acid, alkali, strong corrosive media, toxic, volatile gas, liquid media, and other industries such as chemical, petroleum, metallurgy, medicine, and power.

2、 Product Features
1. Corrosion resistance: The valve body cavity, valve core, valve seat, and valve stem are all made of 316 stainless steel, which can resist acid, alkali, and strong corrosion.
2. Good sealing performance: The corrugated pipe and packing made of polytetrafluoroethylene material are double sealed to ensure no leakage.
3. Small leakage: Due to the soft sealing of the valve core and seat, the leakage is lower than the national IV level standard.
4. Adopting a lightweight and compact multi spring actuator, with small volume, light weight, and high adjustment accuracy.
3、 Part material
Valve body and cover: HT200, ZG230-450, ZG1Cr18Ni9Ti
Valve core and seat: 1Cr18Ni9Ti, welded with Stellite alloy
Soft seal valve core: reinforced polytetrafluoroethylene
Bellows: 1Cr18Ni9Ti PTFE Bellows
Filler: Rubber asbestos board, 10 '', 1Cr18Ni9Ti asbestos wrapped gasket
Membrane cover: A3
Ripple film: Nitrile rubber clip reinforced polyester fabric
Spring: 30SIMN
Valve stem and push rod: 2Cr13, 1Cr18Ni9Ti
Lining: 2Cr13

4、 Performance indicators of ZJHP-16F46 pneumatic thin film lined PTFE single seat regulating valve: (Table 1)

project	performance metrics
Basic error%	≤±8
Return difference%	≤8
Dead zone%	≤6
Rated flow coefficient error	≤± 10% (± 15% when Kv ≤ 5)
leakage	≤ 0.01% rated capacity of valve

5、 Technical parameters: (Table 2)

Nominal diameter DN (mm)

G3/4’’

twenty

twenty-five

thirty-two

forty

fifty

sixty-five

eighty

one hundred

one hundred and fifty

Valve seat diameter DN (mm)

three

four

five

six

seven

eight

ten

twelve

fifteen

twenty

twenty-six

thirty-two

forty

fifty

sixty-five

eighty

one hundred

one hundred and fifty

Rated flow coefficient KV

zero point zero eight

one point one two

zero point two zero

.032

zero point five zero

zero point eight zero

one point two

two

three point two

five

eight

twelve

twenty

thirty-two

fifty

seventy

one hundred

two hundred and forty

flow characteristics

straight line

Straight Line \ Equal Percentage

Nominal pressure PN (Mpa)

1.0  1.6

Equipped with actuator

model

ZHA-22

ZHA-23

ZHA-34

ZHA-45

Effective area cm

two hundred

two hundred and eighty

four hundred

six hundred and thirty

one thousand

Working stroke mm

ten

ten

sixteen

twenty-five

forty

sixty

Spring range KPa

20-100  40-200

mode of action

Airtight or Airtight type

Operating Temperature

-30~200℃

Inherent adjustable ratio R

30：1

6、 Allowable pressure difference of regulating valve: (see Table 3)
The output force of the pneumatic diaphragm actuator of the standard pneumatic single seat valve is constant. To achieve ideal regulation and closure, the pressure difference of the valve must be limited to a certain value, and this product should be selected according to Table 3. When the pressure difference exceeds the allowable value, the spring preload can be adjusted, and a valve positioner or other actuator can be used to overcome the unbalanced force. However, when placing an order, it is necessary to contact our company and explain the specific situation before placing the order.
Allowable pressure difference: (Table 3)

Gas supply pressure (MPa)

Spring range (MPa)

Nominal diameter (DN)

G3/4’’

twenty

twenty-five

thirty-two

forty

fifty

sixty-five

eighty

one hundred

one hundred and fifty

Valve seat diameter (DN)

3-8

ten

twelve

fifteen

twenty

twenty-six

thirty-two

forty

fifty

sixty-five

eighty

one hundred

one hundred and fifty

zero point one four

20~100

Allowable pressure difference △ P (MPa)

one point six

zero point eight

zero point five

zero point five

zero point three

zero point two five

zero point two

zero point one two

zero point zero eight

zero point two four

40~200

one point two

one point one

zero point seven

zero point six five

zero point four five

zero point two eight

zero point two zero

Note: Flow in open state, p2=0 when closed

7、 Main component materials: (Table 4)

Part Name	material	Part Name	material
valve body	ZG25 lined with F46 (FEP)	bellows	F4（PTFE）
valve core	2Cr13 lined with F46 (FEP)
	Hastelloy, Monel	filler	F4（PTFE）
valve seat	2Cr13 lined with F46 (FEP)		flexible graphite
	Hastelloy, Monel

Note: For media containing impurities and particles, valve cores and seats can be made of Hastelloy alloy, etc.

8、 Dimensions: (Table 5)

Nominal diameter DN (mm)	3/4″	twenty	twenty-five	thirty-two	forty	fifty	sixty-five	eighty	one hundred	one hundred and fifty
L	one hundred and sixteen	one hundred and eighty	one hundred and eighty-five	two hundred	two hundred and twenty	two hundred and fifty	two hundred and seventy-five	three hundred	three hundred and fifty	four hundred and eighty
A	two hundred and forty-five	two hundred and forty-five	two hundred and forty-five	two hundred and forty-five	two hundred and ninety	two hundred and ninety	three hundred and sixty-two	three hundred and sixty-two	three hundred and sixty-two	four hundred and fifty-four
H	four hundred and one	four hundred and forty-five	four hundred and eighty-five	four hundred and ninety-five	five hundred and twenty-three	five hundred and thirty-two	six hundred and ninety-seven	six hundred and ninety-nine	six hundred and ninety-nine	eight hundred and seventeen
H1	fifty	sixty-five	seventy	eighty	seventy-one	eighty-eight	one hundred and two	one hundred and forty	one hundred and seventy	one hundred and ninety
weight	seventeen	seventeen	nineteen	twenty-one	twenty-eight	thirty-one point five	fifty-four	sixty-four	eighty	one hundred and twenty

Note: The flange standard complies with JB78-59 and JB79-59 standards Other standards such as ANSI American standards can also be used.

Attachment:
1. Equipped with various models of valve positioners, electrical converters, and air filter pressure reducers.
2. Handwheel mechanism.
3. Electromagnetic valve, proximity switch.

9、 Model designation description