DN Series High Quality Self-Operated Pressure Regulation/ Control Valve

• Customization: Available
• Temperature: -17~450+Degree Centigrade
• Certification: GS, CE, ISO9001
• Model NO.: ZZYP-16K; ZZYP-16B
• Media: Gas, Oil, Water, Acid
• Standard: Standard
• Connection Mode: Flange
• Power: Pneumatic
• Material: Gas; Liquid; Steam Media.
• Type: Self-Operated
• Transport Package: Wooden Case
• Specification: DN20-300mm
• Trademark: ZHITAI
• Origin: China
• HS Code: 841239
• Production Capacity: 5000pieces

Product Description

Product Description

Self-operated Pressure Control Valve  (ZZYP)

Summary:
ZZYP self-operated pressure control valve is mainly composed of control valve, actuator and a set pressure spring. It is suitable for non-corrosive liquids, gases and steam. The pressure before (when the pressure in front of the valve is increased, the control valve opens) or after (when the pressure in the valve is increased, the control valve opens) the pressure is controlled in the system piping. It is widely used in petroleum, chemical industry, electric power, metallurgy, medicine, food, textile, machinery, hvac. The action form has the pressure adjustment after reducing pressure with the valve (type B) and the pressure adjustment before reducing pressure with the valve (type K).





 

Self-operated Pressure Control Valve
Model	ZZYP-16K; ZZYP-16B
Size	DN20~300mm
Structure Form	Straight-through Casting Ball Type
Body Material	Cast steel(WCB); Stainless Steel(304;316;316L)
Norminal Pressure	PN1.6; PN2.5; PN4.0; PN6.4MPa
Working Temperature	-17~+450ºC
Application Range	Gas; liquid; steam media
Feature	It requires no external energy and can be self-regulated by pipeline pressure.

 

Body Specification
Nominal Diameter	DN20~300mm
Flange Standard	ANSI,JIS,GB,JB,DIN
Body Material	Cast steel; Fluorine PTFE(F46)
Working Temperature	-17~+450ºC
Gland Type	Bolted Type
Packing Material	V-type PTFE; Teflon asbestos; graphite packing

 

Rated Cv & Rated Stroke & Pressure Reducing Ratio
Nominal diameter (DNmm)	20	25	32	40	50	65	80	100	125	150	200	250	300
Rated KvS	7	11	20	30	48	75	120	190	300	480	750	1100	1750
Rated Stroke(mm)	8	11			14	20		25	40		50	60	70
Pressure Reducing Ratio	Maximum 10.1
	Minimum 10.8

Features:
Compared with manual control valve, self-operated pressure control valve has the advantage of being able to adjust automatically. Relative to the electric control valver, it has the advantage of no external power. Self-operated valve relies on the pressure and temperature flowing through the valve medium itself as energy to drive the valve to work automatically, and it do not need power supply and secondary instruments.

Function:
Self-operated valves are used at the output end of the valve feedback signal (pressure, pressure difference, temperature) through the signal pipe to the actuator drive valve disc to change the opening of the valve, to adjust the pressure, flow, temperature purposes. In closed water circulation system (such as hot water heating system, air conditioning chilled water system), the correct use of this valve can be very convenient to achieve the flow distribution of the system; The dynamic balance of the system can be realized. Can greatly simplify the debugging of the system; Can stabilize the working state of the pump.


Company Introduction:   
Zhitai Valve Co., Ltd is a member of Valve Association of Longwan District, is located in Longwan Central Industrial Zone, Wenzhou City. It'a professional technology company integrated with development, manufacturing, sales, and after-sales services of valve actuators and and self-controlled valves. Presently, our main products include: pneumatic actuators, pneumatic valves and pneumatic control valves; electric actuators, electeic valves and eletric control valves; automatic control products. Our products are widely applied in natural gas, electricity, petroleum, chemical, metallurgical, construction, pharmacy, paper, printing and dying. Zhitai series actuators and valves are the best choice for automatic fluid control engineering and equipment manufacturing. We sincerely welcome customers from home and abrode to visit us for supervision, communication and cooperation. It's a great honor for us to cooperate with you.