Special material back pressure valve (HC276, TA2, M400...)

NegotiableUpdate on 05/18

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Special material back pressure valve is a pressure control valve designed specifically for precision fluid systems. Its core function is to provide constant and corrosion-resistant pressure control for metering pumps, dosing systems, and chemical pipelines, ensuring pressure stability and equipment safety. It is widely used in chemical, water treatment, pharmaceutical, food and beverage industries.

Product Details

Technical parameters of PRESSREG special material back pressure valve (HC276/titanium/PFA/PTFE/tantalum)

1、 Basic performance parameters

parameter name	Specification Range	Remarks (adapted to special material characteristics)
Nominal diameter (DN)	DN3 - DN200	Covering micro experiments to industrial high flow scenarios, special paths can be customized; PFA/PTFE, HC276/Titanium/Tantalum
Set pressure range	Conventional 0.001-42MPa, high-pressure type can reach 70MPa	The precision of pressure control is ± 1KPa, and the precision of pressure control series can reach ± 0.001MPa without pressure hysteresis; Tantalum and HC276 materials are suitable for high-pressure conditions, while PFA/PTFE is suitable for low-pressure conditions
Medium temperature range	Normal temperature type -20 ℃~100 ℃, high temperature type can reach 450 ℃	Adapt according to the characteristics of special materials: HC276/titanium/tantalum material adapts to -40 ℃~450 ℃, PFA adapts to -20 ℃~150 ℃, PTFE adapts to -20 ℃~100 ℃, ensuring the fluidity of the medium
Work pressure difference	0.02MPa -0.05MPa (adjustable)	High flow series pressure loss<0.02MPa; Metal special materials (HC276/titanium/tantalum) have more stable pressure loss, while PFA/PTFE materials need to be matched with medium viscosity adjustment
Circulation capacity (Cv value)	0.01 - 50.0	According to the matching of nominal diameter and special material characteristics, the flow capacity of metal special materials can reach 100m ³/h,
leakage rate	≤ 1 × 10 ⁻⁶ Pa · m ³/s (zero leakage level)	The sealing level reaches V level, and the membrane sealing structure ensures sealing performance; PFA/PTFE material has better sealing performance and is suitable for the zero leakage requirements of strong corrosive media
Adjust response time	≤ 0.5s (electric control type); ≤ 1s (manual)	The electronic control type supports electric proportional adjustment and responds quickly; The metal special material valve body has strong rigidity and better regulation stability than non-metallic special materials (PFA/PTFE)

2、 Structure and Special Material Parameters (Core Focus)

Component Name	Optional special materials (HC276/titanium/PFA/PTFE/tantalum)	Special material characteristics and applicable scenarios
valve body	HC276 Hastelloy, Titanium PFA、PTFE、 tantalum material	1. HC276: resistant to strong corrosion (hydrochloric acid, sulfuric acid, etc.), high temperature resistance of 450 ℃, suitable for chemical strong corrosion and high-pressure working conditions; 2. Titanium material: resistant to seawater, chlor alkali, nitric acid, lightweight, suitable for marine and pharmaceutical conditions; 3. PFA/PTFE: resistant to strong acids and alkalis, organic solvents, pollution-free, suitable for clean working conditions in food, electronics, and medicine; 4. Tantalum material: resistant to aqua regia, resistant to hydrogen embrittlement, suitable for strong corrosion and precision working conditions
Valve core/seat	HC276、 Titanium material PTFE、 Tantalum material (PFA optional)	Match with the valve body material to ensure wear resistance and corrosion resistance; Metal special materials (HC276/titanium/tantalum) have strong rigidity, PTFE/PFA are suitable for low-pressure and wear-resistant working conditions, and the conical valve stem ensures sealing durability
diaphragm	PTFE, PFA, HC276 metal film, tantalum film	1. PFA/PTFE membrane: resistant to temperatures ranging from -20 ℃ to 260 ℃/180 ℃, with excellent sealing performance; 2. HC276/Tantalum Membrane: High temperature resistance of 450 ℃, strong corrosion resistance, suitable for high-pressure, high-temperature and strong corrosion working conditions, balancing sealing and temperature resistance
sealing element	PTFE, PFA, FKM (compatible with metal special materials)	Compatible with valve body materials, temperature and corrosion resistant; PFA/PTFE seals are compatible with their own valve bodies and metal materials, while FKM seals are compatible with HC276/titanium/tantalum materials to ensure zero leakage sealing performance
structural form	Direct acting, spring diaphragm type (customized structure with special materials)	Adopting a force balance structure, automatically adjusting the opening to maintain pressure stability; For optimizing the structure of special materials, metal special materials reduce vulnerable sliding parts, and PFA/PTFE materials increase deformation resistance design, all of which are maintenance free designs

3、 Connection and installation parameters

parameter name	Specification Range	Remarks (adapted to special material characteristics)
connection method	NPT thread (1/8 "~4"), flange, welding	Customizable special interface specifications; Metal special materials (HC276/titanium/tantalum) support welding and flange connections, while PFA/PTFE materials mainly use threaded and flange connections for easy installation, disassembly, and corrosion resistance
Installation direction	Vertical installation (recommended)/horizontal installation	Installation should be marked according to the flow direction of the medium, and reversing the inlet and outlet will cause the back pressure to double; PFA/PTFE material should be installed near the filling point or pump outlet to avoid deformation caused by long-term horizontal installation
ambient temperature	-40℃~80℃	Outdoor use requires the addition of protective shelters or shields; PFA/PTFE material should be protected from direct sunlight, and metal special materials should avoid temperature differences to prevent resonance with the system
Protection level	IP65 (standard), IP67 (optional)	Dustproof, waterproof, suitable for outdoor and humid working conditions; The electronic control type can enhance the protection level and adapt to harsh working conditions such as strong corrosion and humidity corresponding to special materials
Explosion-proof rating	Exd II BT4/(optional)	Suitable for flammable and explosive hazardous environments such as chemical and petroleum industries, equipped with explosion-proof armored joints; Collaborate with the anti-corrosion properties of special materials to enhance equipment safety under hazardous conditions

4、 Control and adaptation parameters

parameter name	Specification Range	Remarks (adapted to special material characteristics)
Control method	Self operated (default), electrically controlled (optional), remote control (optional manual)	Remote control supports 4-20mA signal; Metal special materials are suitable for high voltage electric control regulation, while PFA/PTFE materials are suitable for medium and low voltage self operated/electric control, all of which are compatible with distributed energy systems and automated production lines
adjustment method	Top knob manual adjustment (with locking and anti loosening), electric proportional adjustment	Manual adjustment is convenient, while electric adjustment can achieve precise closed-loop control; The metal special material adjustment knob is made of anti-corrosion material. The PFA/PTFE material knob is corrosion-resistant and deformation resistant, and can be locked and prevented from loosening after adjustment
Adaptation medium	Strong acids, strong bases, organic solvents, seawater, steam, hydrogen, corrosive gases, etc	Adaptation according to special material characteristics: HC276/tantalum material is suitable for strong corrosive media, titanium material is suitable for seawater/chlor alkali, PFA/PTFE is suitable for clean corrosive media; A pre filter is required for media containing solid particles
Adapt to the industry	Petrochemical, pharmaceutical, marine engineering, electronic semiconductors, food and beverage, new energy, hydrogen production, etc	Customized material combinations can be made according to industry conditions (such as HC276/tantalum for chemical industry, PFA/PTFE for pharmaceutical industry, titanium for marine industry), with customized material, pressure, and diameter parameters

5、 Other parameters

parameter name	Specification Range	Remarks (adapted to special material characteristics)
service life	≥ 10000 hours (normal operating conditions)	The service life of metal special materials (HC276/titanium/tantalum) can reach over 15000 hours, while PFA/PTFE materials have a service life of ≥ 10000 hours; Regular maintenance can extend the service life, and vulnerable parts can be replaced separately and matched with special materials
warranty period	1 year (complete machine warranty)	The warranty period of special materials such as tantalum and HC276 can be extended through negotiation, providing after-sales technical support and supply of special spare parts to ensure convenient maintenance in the later stage
delivery cycle	Customized special material products ≤ 30 days	Response within 48 hours for urgent orders; The delivery cycle of scarce special materials such as tantalum can be negotiated, which is more than 50% shorter than the delivery cycle of imported special material valves
定制能力	Full dimensional customization of special material matching, pressure, diameter, and connection methods	Special materials (such as valve body HC276+sealing PTFE) can be matched according to the working conditions, suitable for special high temperature, high pressure, and strong corrosion working conditions, to meet the personalized needs of different industries

Note: This technical parameter is based on the standard specifications of the PRESSREG-RCR special material series back pressure valve, and is compatible with HC276 Hastelloy and titanium materials PFA、PTFE、 Special materials such as tantalum can be matched and adjusted according to the actual working conditions of customers. For details, please consult the manufacturer for targeted solutions.