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ZZYN Double seat self-operated regulator – Hoyee Detail:
Self-operated regulator has the following types according to the different working conditions:
ZZYP(single-seat type), ZZYM(sleeve type) and ZZYN(double-seat type), and ZZYN Double seat self-operated regulator also has three different covers such as common one, long-neck one and cooling type. For different applications, ZZYN Double seat self-operated regulator has three different types of actuators:film/piston/bellows.
ZZYN Double seat self-operated regulator has other advantages as smart and accurate regulating,taking up small space and simple operation and it’s widely used in the pressure control of gas,steam or water in petroleum, chemical, electric power, metallurgy, food, textile, machinery, civil construction industry.
ZZYN Double seat self-operated regulator is designed and manufactured according to the standard of AMSE/API/BS/DIN/GB
ZZYN Double seat self operated regualtor pressure adjusting range

Note:1. ZZYN Double seat self-operated regulator take diaphragm type actuator for example. If the pressure of ZZYN Double seat self-operated regulator is 1000~3000KPa, please consult our customer service or sales people.
2.The table above is Pressure Subsection Range. Choose the median around for pressure control. The smaller the pressure range, the higher the precision . Therefore it should be used within the pressure setting range.
3. If the pressure ratio between before valve and after valve of ZZYN Double seat self-operated regulator with the pressure control after valve exceeds 10,it needs multi-stage decompression or two ZZYN Double seat self-operated regulator in series (can choose control valve with director except pressure before valve is below 0.8MPa)
4.It needs special design when the nominal pressure is over 6.3MPa.
5.This series ZZYN Double seat self-operated regulator’s lowest pressure control is 15 KPa.
ZZYN Double seat self-operated regulator technical parameter
Nominal diameter
DN(mm) |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
| Coefficient(KV) |
5 |
8 |
12.5 |
20 |
32 |
50 |
80 |
125 |
160 |
320 |
450 |
630 |
900 |
| Rated stroke(mm) |
8 |
10 |
12 |
15 |
18 |
20 |
30 |
40 |
45 |
60 |
65 |
Nominal diameter
DN(mm) |
20 |
The seat diameter
DN(mm) |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
12 |
15 |
20 |
| Coefficient(KV) |
0.02 |
0.08 |
0.12 |
0.20 |
0.32 |
0.5 |
0.80 |
1.20 |
1.80 |
2.80 |
4.0 |
5 |
| Nominal pressure |
MPa |
1.6,2.5,4.0,6.4(6.3)/2.0,5.0,11.0 |
| Bar |
16,25,40,64(63)/20,50,110 |
| Lb |
ANSI:Class150、Class300、Class600 |
pressure range
KPa |
15~50、40~80、60~100、80~140、120~180、160~220、200~260、
240~300、280~350、330~400、380~450、430~500、480~560、540~620、
600~700、680~800、780~900、880~1000、900~1200、1000~1500、
1200~1600、1300~1800、1500~2100、 |
| Flow characteristic |
Quick opening |
| Adjust the accuracy |
±5-10(%) |
Working
TemperatureT(℃) |
-60~350(℃) 350~550(℃) |
| Leakage |
Class IV;Class VI |
Product detail pictures:
Related Product Guide:
Having a positive and progressive attitude to customer's fascination, our organization constantly improves our solution high-quality to fulfill the requirements of shoppers and further focuses on safety, reliability, environmental prerequisites, and innovation of
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ZZYN Double seat self-operated regulator – Hoyee , The product will supply to all over the world, such as: Wellington
, Mecca
, UAE
, By integrating manufacturing with foreign trade sectors, we can provide total customer solutions by guaranteeing the delivery of right products to the right place at the right time, which is supported by our abundant experiences, powerful production capability, consistent quality, diversified product portfolios and the control of the industry trend as well as our mature before and after sales services. We'd like to share our ideas with you and welcome your comments and questions.