UPVC Pressure Reducing Valve

UPVC Pressure Reducing Valves are designed to reduce the incoming water and steam pressure for a safe, constant, predetermined downstream level. They depend on the type of valve, where the downstream pressure is established by a pressure adjustment setting on the valve or by an external sensor. UPVC Pressure Reducing Valves are utilized in commercial, institutional, and industrial applications. The UPVC Pressure Reducing Valve is a precision device designed to regulate and maintain the downstream pressure in the water fluid systems regardless of the fluctuating upstream pressure. These valves offer outstanding chemical resistance, and they are ideal for corrosive and aggressive media. It ensures the safe, consistent flow by automatically adjusting the pressure, making it suitable for water treatment, irrigation, and chemical processing systems.

The UPVC Pressure Reducing Valve is ideal for applications where a constant downstream pressure is required. They are used in various process lines, equipment, including the Water lines, Fuel control systems, and LPG distribution systems. PRV provides a reliable and economical solution for pressure regulation. A UPVC Pressure Reducing Valve is a device that is used in fluid piping systems to regulate and maintain a pressureer is automatically. They are stable, the downstream pressure is regardless am tupstream he pressure fluctuations. It is especially useful where high inlet pressure needs to be kept to protect piping to control, fixtures, and equipment. The body and components are made from Unplasticized Polyvinyl Chloride (UPVC), therefore giving excellent corrosion resistance and suitability for water or mild chemical media.

UPVC Pressure Reducing Valve Details

DN: Nominal Diameter (Internal size).
L: Total Face-to-Face Length.
H: Total Height from the bottom of the body to the top of the bonnet/handle.
D: Outer Diameter of the valve body or flange.
d / z / h: Typically refer to socket depth, port diameter, or specific bolt-hole center dimensions.

DN	L	H	D	d	z	h
15	170	172	82	20	21	27
20	170	172	82	25	21	27
25	212	202	107	32	26	35
32	226	202	107	40	28.5	35
40	292	259	148	50	37	58
50	305	259	148	63	37	58

Parameter	Specification / Property
Valve Type	Solenoid Valve (Electrically Actuated)
Body Material	UPVC (Unplasticized Polyvinyl Chloride)
Internal Parts	Stainless Steel (SS304/SS430) / Copper components
Seal Material	EPDM / FKM (Viton)
Operation Type	Normally Closed (NC) / Normally Open (NO)
Actuation	Electromagnetic Coil
Voltage Options	12V DC, 24V DC, 24V AC, 110V AC, 230V AC
Protection Class	IP65 (Dustproof & Water-resistant)
Connection Type	Threaded (BSP/NPT) / Socket / Flanged
Size Range	DN15 – DN65 (½” – 2½”)
Pressure Rating	Up to 6–7 bar (Working range: 0.1 to 6 bar)
Temperature Range	-5°C to 60°C
Response Time	< 1 Second
Flow Direction	Uni-directional
Density	~1.38 – 1.45 g/cm³
Corrosion Resistance	Excellent (Acids, alkalis, and salts)
Mechanical Strength	High rigidity and tensile strength
Thermal Conductivity	Low (Self-insulating)
Surface Finish	Smooth internal bore (Minimal friction)
Weight	Lightweight compared to metal alternatives
Standards	CE compliant / ISO standards
Applications	Water treatment, chemical dosing, irrigation, automation

Automatic Pressure Regulation: Maintains constant downstream pressure despite input fluctuations.
Corrosion-Resistant Body: UPVC construction ensures durability in aggressive chemical environments.
Adjustable Set Pressure: Customizable output pressure range using external adjustment screw.
Non-Metallic Internals: Prevents corrosion and minimizes maintenance.
Compact & Lightweight: Easy to install and suitable for space-restricted setups.
Reliable Sealing: High-performance diaphragm and seals prevent leakage and ensure accurate control.
Low Maintenance: Designed for long service life with minimal servicing requirements.

Parameter	Typical Value / Rating	Notes
Nominal Pressure Rating (PN)	PN 10 (10 bar / ~150 psi)	Standard for UPVC valves at ~20 °C – common working pressure rating for many UPVC PRVs.
Adjustable Outlet Pressure Range	0.5 – 6 bars (7 – 87 psi)	Typical adjustability range on many diaphragm-type UPVC reducing valves.
Maximum Working Temperature	0 °C to ~60 °C	Above this temperature, plastic valves and their ratings may derate significantly.
Pressure Derating at Elevated Temp (Approx.)	20 °C: 100 % = 10 bar 40 °C: ~65 % ≈ 6.5 bar 60 °C: ~30 % ≈ 3 bar	Pressure tolerance decreases with temperature for UPVC valves.

If you are searching for customized product designs that meet your requirements, don’t worry. Petron Thermoplast also offers custom product manufacturing services to meet the unique needs of various industries. Work with our expert engineers to create custom designs suited for your application.

Benefits of UPVC Pressure Reducing Valve

1. Protects Piping & Equipment

Reducing the high inlet pressure to a safe level and controlling the outlet pressure
Prevents pipe bursts, leaks, and damage to fixtures, meters, and pumps

2. Corrosion & Chemical Resistance

UPVC is highly resistant to rust, scale, and many of the chemicals
They are ideal for water, wastewater, and mild chemical applications

3. Consistent & Stable Pressure

Maintain the constant downstream pressure even when the inlet pressure fluctuates.
Improves the performance and reliability of the system

4. Lightweight & Easy Installation

Much lighter than metal PRVs
Easy to handle, lower installation effort, and reduced labor cost

5. Low Maintenance

Non-corrosive material means longer service life
Fewer blockages and a reduction in the need for repairs

6. Cost-Effective Solution

Lower initial cost compared to brass or metal
A long life cycle reduces the replacement and maintenance expenses

7. Energy & Water Savings

Prevent the excessive pressure and reduce the wastage of water
Improves the efficiency of downstream equipment like irrigation systems

8. Adjustable Outlet Pressure

Easily adjustable to suit different operating requirements
Allows precise pressure control without changing hardwarE

9. Smooth Flow & Low Pressure Loss

UPVC’s smooth internal surface to minimize the friction losses
Better flow efficiency compared to rough metal surfaces

10. Suitable for Many Applications

Domestic water supply
Irrigation systems
Water treatment plants
Industrial fluid handling
RO and filtration systems

Types of UPVC Pressure Reducing Valve

1. Diaphragm-Operated UPVC Pressure Reducing Valve

Uses a flexible diaphragm to sense the downstream pressure
Automatically opens and closes to maintain the set pressure
Very accurate and stable control

2. Spring-Loaded (Direct Acting) UPVC PRV

Pressure is balanced against an adjustable spring
Compact design and quick response
Suitable for smaller pipe sizes and moderate flow

3.Pilot-Operated UPVC Pressure Reducing Valve

Uses a small pilot valve to control a main valve
Handle high inlet pressure and large flow rates
Provide a very stable outlet pressure

4. Inline UPVC Pressure Reducing Valve

Installed it directly in the pipeline (straight-through design)
Compact and space-saving
Common in small and medium piping systems

Angle-Type UPVC Pressure Reducing Valve

Flow path changes direction (usually 90°)
Reduces pressure and flow velocity simultaneously
Helps minimize water hammer in some systems

6. Manual Adjustable UPVC Pressure Reducing Valve

Outlet pressure adjusted manually using a screw or knob
Simple construction and easy operation
No external power required

7. Pressure Reducing Valve with Gauge (UPVC)

Comes with a built-in or attached pressure gauge
Allows easy monitoring and fine adjustment of outlet pressure

Why Choose Petron Thermoplast?

Petron Thermoplast provides the industrial UPVC Pressure Reducing Valve solutions designed to meet the demanding requirements of industrial and water treatment plants.