Author: HF Valves

Triple Eccentric Butterfly Valve
Triple Eccentric Butterfly Valve
Triple Eccentric Butterfly Valve, also known as Triple Offset Butterfly Valve, is a high-performance industrial butterfly valve featuring advanced triple offset technology and metal seat design. It provides bubble-tight sealing, low operating torque, excellent durability, and reliable performance under high pressure and high temperature conditions.
Widely used in oil & gas, petrochemical, LNG, power generation, chemical processing, and water treatment industries, this triple offset butterfly valve is designed for critical applications involving steam, gas, oil, and other demanding media. It is an ideal solution for reliable shut-off and precise flow control in industrial pipeline systems.
Specification
Size: DN100～DN3600
Pressure: 150LB 300LB
Connection: Wafer type, Lug Type,
Body: WCB；stainless steel ；Aluminum bronze
Seat: Stillite；tungsten carbide; nickel alloys; Monel; stainless steel
Material: Water, oil, gas, and various corrosive media

Main Parts Material:
BODY、DISC
WCB
CF8/304
CF3M/316L
STEM
2Cr13
304
316L
O RING
304+Flexible graphite
304+PTFE
304+PTFE
PACKING
Flexible graphite
PTFE
PTFE
Features
The butterfly valve adopts three eccentric hard seal structure, seat and plate are almost wear-free
The dual advantages of metal hard seal and elastic seal, have excellent sealing performance in low temperature and high temperature, corrosion resistance, long service life and other characteristics.
Valve disc overlays HF, which is wear-resistant and has a long service life
September 11, 2023

High-performance Bufferfly Valve

Product

High-performance Bufferfly Valve

High-Performance Butterfly Valve, also known as double offset butterfly valve, is engineered for demanding industrial flow control and shut-off service. Its double offset geometry lifts the disc away from the seat immediately upon opening, reducing seat friction, lowering operating torque and extending service life. Available in lug, wafer and flanged end connections, this valve delivers tight bi-directional sealing for oil & gas, chemical, power generation and high-pressure industrial water systems.

Specification

Size：NPS 2”～48”/DN50～DN4000
Pressure: 150LB～300LB/PN10～PN50；
Matrial：Carbon steel, heat-resistant steel, stainless steel, nickel-based alloy, titanium alloy, etc.
Temperature range: -196℃～300℃；
Connection method: clamp, flange, lug, etcDesign: API 609, MSS SP-67
Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1
Pressure Test: API 598
Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16
Top Flange: ISO5211
Application: petroleum, petrochemical, natural gas, electric power, water conservancy and other industries.

Main Parts Material:

Body	Carbon Steel	WCB
Body	Carbon Steel	A351 Gr CF8 CF8M CF3M
Disc	Carbon Steel	A351 Gr CF8 CF8M CF3M
Retainer	Carbon Steel	A351 Gr CF8 CF8M CF3M
Seat	PTFE PTFE+CLASS FIRER PTFE+GRARHITE	PTFE /RPTFE
Bushing	PTFE+316SS	PTFE+316SS
Stem	Carbon Steel	A182 F304 F316 A564 Gr.630 A479 Gr.XM-19
Pin	Carbon Steel	A240 Gr.316
Seal	PTFE	PTFE
Gland Packing	PTFE PTFE+GRAPHITE	PTFE RPTFE

Feature:

1. Double eccentric design. Unique lip seal structure delivers bi-directional bubble-tight shutoff via elastic interference and self-sealing.

2. Interchangeable PTFE seats for diverse working conditions, offering long service life.

3. Anti-blowout valve stem design. Low fugitive emission packing meets ISO 15848 and API 622 standards.

4. ISO 5211 top flange, compatible with pneumatic, electric and gas-hydraulic actuators for automatic control.

September 10, 2023

PTFE Lined Flanged Butterfly Valve
PTFE Lined Flanged Butterfly Valve
PTFE lined flanged butterfly valve is designed for handling corrosive and aggressive media in chemical, pharmaceutical, water treatment, and industrial applications. The valve features a PTFE lining that provides excellent corrosion resistance, low friction, and reliable sealing performance. With a lightweight design, low operating torque, and long service life, it is an ideal solution for demanding applications requiring high chemical compatibility and leak-free operatio
Specification
Size: NPS 2”-8”
Pressure: 150LB
Body Materials: Body Material: Cast Iron / Ductile Iron
Seat Materials: EPDM / NBR/ VITON / PTFE
Design: API 609, MSS SP-67
Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1
Pressure Test: API 598
Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16
Top Flange: ISO5211
Suitable Medium: air, Sewage, steam, gas, oil, etc

Main Parts Material:
Part
Material
Body
WCB,QT450
Disc
WCB,QT450
Shaft
2Cr13
O ring
EPDM / NBR/ VITON / PTFE
Packing
Flexible graphite
Features:
1. The use of PTFE lining without pins ensures the isolation of the medium from the metal and improves the reliability of the product.
2. The sealing surface has good wear resistance
3. It can be installed in any position, and the maintenance is convenient.
4. The seal can be replaced, and the sealing performance is reliable to achieve zero leakage in both directions.
5. Rubber material has no toxicity, and is antibacterial and mildew-resistant.
September 9, 2023
Fully Welded Butterfly Valve
Fully Welded Butterfly Valve
Fully welded butterfly valve features a welded body structure, providing excellent strength, durability, and reliable sealing performance. It is designed for demanding applications in heating systems, water supply, oil & gas, and industrial pipeline systems. With a compact structure, lightweight design, and low operating torque, it ensures easy installation, stable operation, and long service life. The valve is suitable for large-diameter pipelines requiring safe and reliable flow control.
Specification:
Size: DN100～DN3600
Pressure: 150LB 300LB
Connection: Wafer type, Lug Type,
Body: WCB；stainless steel ；Aluminum bronze
Seat: Stillite；tungsten carbide; nickel alloys; Monel; stainless steel
Material: Water, oil, gas, and various corrosive media

Main Parts Material:
BODY,DISC
WCB
CF8/304
CF3M/316L
STEM
2Cr13
304
316L
O RING
304+Flexible graphite
304+PTFE
304+PTFE
PACKING
Flexible graphite
PTFE
PTFE
Features：
1. The fully weld butterfly valve is with a simple structure, easy to maintain and install.

2.Small in size and light in weight, suitable for compact installation space.

3. Low fluid resistance: the internal flow channel of the welded butterfly valve is unobstructed, and the resistance when the fluid passes through is small, which can reduce energy consumption.

4. Good sealing performance: the valve adopts rubber sealing ring or metal sealing ring, which has good sealing performance and can effectively prevent leakage.
5. High temperature resistance and corrosion resistance: valve can be made of high temperature resistant and corrosion resistant materials, suitable for a variety of working conditions.

September 8, 2023

Forged Steel Check Valve

Forged steel check valve is designed to prevent reverse flow in high-pressure industrial pipeline systems. With excellent pressure resistance, reliable sealing performance, and durable construction, they are widely used in oil and gas, petrochemical, chemical processing, and power generation applications.

Specification

Size: NPS 1/2″ ~ NPS2″

Pressure: 150LB~2500LB

Connection:RF, RTJ, BW，SW

Standard: API602,ANSI B16.34

Construction Type: BB or WB,OS&Y, Replaceable Seat

Face to Face: ASME B16.10

End standard: ASME B1.20.1 ASME B16.5 ANSI B16.11

Temperature: -29°C ~ 550°C

Main material: A105, F316, F304, F11, F12

Medium: water, steam oil, nitric acid, acetic acid, etc

Applications: Suitable for tap water, food, pharmaceutical, electric petroleum, liquefied gas, steam, and other media pipelin

Main Parts Material:

Part	A105N	F22	F304(L)	F316(L)
Body	A105N	A182 F22	A182 F304(L)	A182 F316(L)
Disc	A276 420	A276 F22	A276 304(L)	A276 F316(L)
Stem	A182 F6a	A182	A182 F304(L)	A182 F316(L)
Gasket	316+Flexible graphite		316+PTFE
Bonnet	A105N	A182 F22	A182/F304(L)	A182/F316(L)

Features:

Design and manufacture according to API standards, reliable sealing, excellent performance.
600Lb above gate and seat overlaiedwith sellite, wear resistance, high temperature resistance, corrosion resistance,
The valve stem is tempered and surface nitrided, and has good corrosion resistance and scratch resistance.
It adopts wedge elastic gate structure, and sets rolling bearings with medium and large diameter, which is easy to open and close.
1500LB, 2500LB middle cavity adopts pressure self-tightening sealing structure

August 29, 2023

Lug Type Dual Plate Check Valve
Product
Lug Type Double Plate Check Valve
Specification
Size: NPS8~60″ (DN200~1500mm)
Pressure: Class150~900Lb
Main Material: WCB、A105、 C5、WC6、WC9
Design and manufacturing standards: API594, API 6D, ASME B16.34
Structure length: API 594, API 6D, ASME B16.10
Connections: ASME B16.5, ASME B16.47
Test standards: API 598, API 6D

Main Parts Material:
Part
Material
Body
WCB、304、316、316L
O ring
NBR、VITON
Disc
304、316、316L
Gland
304、316、316L
Shaft
304、316、316L
Features:
The structure length is short, which brings great convenience to the valve installation, handling, storage and pipeline layout, and can save costs.
Reduce line vibration, in order to reduce line vibration to a minimum or eliminate line vibration, the check valve must be closed as soon as possible before the liquid flow has a chance to reverse flow. The size of each flap in a double-lobe check valve Only half the size of a fully constructed check disc, it experiences reduced fluid resistance and faster movement to the closed position. They have a radius of rotation half that of conventional check valves.
Its leading distance from the open to the closed position is halved, thus reducing travel time by up to 50%
The double-piece check valve reduces water hammer, and the flaps of the double-piece check valve have been greatly reduced in weight, which can reduce the slamming and water hammer phenomena to a small limit Degree.
August 29, 2023
Wafer Lifting Check Valve
Product
Wafer Lifting Check valve
Specification
Sizer: 1/2″ ~ 48″/DN15~ DN1200
Pressure: Class150~ Class2500/ PN1.6~10.0MPa
Applicable temperature: ≤350°C
Main materials: WCB, WCA, WCC, WC6, WC9. C5、 C12、 LCB、 LCC、 CF8、 CF8M、CF3、 CF3M、CN7M、CF8C
Design standards: API6D, JB/T8937, API594
Structure length: API594, JB/T8937
Connection standards: ASME B16.5, GB/T 9113, JB/T 79, HG/T 20592
Pressure test: API 598, GB/T 13927. JB/T 9092
Features:
The product structure is short length, small size and lightweight.
The sealing can be selected as soft to soft or metal to metalmaterial according to different working conditions, and the sealing performance is good.
Horizontal or vertical pipelines can be used and easy to install.
The valve disc closes quicklywith low water hammer pressure.
Parts material and end face form and size can be reasonably selected according to actual working conditions or user requirements to meet various engineering needs.
August 29, 2023

Swing Check Valve

Swing Check Valve is a reliable non-return valve designed to prevent reverse flow and protect piping systems. Featuring a hinged disc structure, it provides low pressure drop, smooth operation, and long service life. It is widely used in oil & gas, petrochemical, power generation, water treatment, marine, and industrial pipeline systems. Suitable for liquids, gases, and other media, Swing Check Valve ensures safe and efficient flow control in various applications.

Swing Check Valve Specification

Size: NPS 2″ ~ 24″

Pressure: CL150~ 2500 lb

Connection: RF, RTJ, BW

Operating temperature: -196°C ~ +560°C

Main material: carbon steel, stainless steel, alloy steel

Design：API594、API6D、JB/T8937、GB/T12236
Structure length：API594、API6D、DIN3202、JB/T89373

Flange：SNSIB16.34、DIN2401、GB/T9124、HG20604、HG20625、SH3406、JB/T74

Test：API598、JB/T9092

Main Parts Material:

Body	ASTM A216WCB								ASTMA351 Cf8
Disc	WCB			CF8		CF8M		Monel	ASTMA351 Cf8
Pin	F6a			F304		F316		Monel	F304
Disc Surface	13Cr	13Cr	STL	304	STL	316	STL	Monel	304	304	STL
Seat Surface	13Cr	STL	STL	304	STL	316	STL	Monel	304	STL	STL
Body	ASTM A351 CF3					ADTM A351 CF8M			ASTM A351 CF8
Disc	ASTM A351 CF3					ADTM A351 CF8M			ASTM A351 CF8
Pin	F304L					F316L			F316
Disc Surface	304L			304L	STL	316	316	STL	316L	316L	STL
Seat Surface	304L			STL	STL	316	STL	STL	316L	STL	STL

Features:

The valve disc closes quickly. Low water hammer pressure.
Horizontal or vertical pipes can be used, easy to install.
The flow channel is smooth and the fluid resistance is small.
Sensitive action and good sealing performance.
The valve disc stroke is short and the impact force of closing the valve is small.
Overall structure, simple and compact, beautiful shape.
Long service life and high reliability.

August 29, 2023

Forged Steel Globe Valve

Forged steel globe valve is used for throttling and flow regulation in high-pressure pipelines. The forged body provides high strength for harsh working conditions. API and DIN standards are available, widely applied in oil & gas and petrochemical industries.

Specification

Size: NPS3/4”-2”
Class: 150Lb~2500Lb
Working temperature: -29～500℃
Design: API 602
Connection: RF, SW, BW, RTJ
Face to face: ASME B16.10
Test：API 598

Main Parts Material:

Body	A105	A182 F22	A182 F304(L)	A182 F316(L)
Seat	A276 420	A276 304	A276 304(L)	A276 316(L)
Disc	A182 F430&410	A182 F304	A182 F304(L)	A182 F316(L)
Stem	A182 F6	A182 F304	A182 F304(L)	A182 F316(L)
Gland Packing	A276 410		A182 F304(L)	A182 F316(L)

Features:

The channel is smooth and the flow coefficient is small. The sealing surface is less susceptible to medium erosion and erosion.
The sealing surface is made of alloy steel or hard alloy, with good wear and scratch resistance.
Adopting flexible graphite packing, reliable sealing, and easy to operation.
The flow direction of the medium is unrestricted, not only doesn’t disturb flow,but also not reduce pressure.
Filler replacement and maintenance can be carried out in an online shutdown state, which is convenient and fast without affecting system operation.

August 29, 2023

Y-Type Globe Valve
Y-Type Globe Valve
Y-Type Globe Valve is designed with an inclined body structure, allowing the fluid flow path to be more streamlined compared with conventional globe valves. It provides lower pressure drop, reduced turbulence, and excellent throttling performance. Widely used in power plants, oil and gas, chemical, and industrial pipeline systems, it is suitable for high-pressure and high-temperature applications requiring reliable flow control and shut-off. With robust construction and reliable sealing performance, the valve offers long service life and stable operation.
Specification
Size： NPS 1/ 2〞~24〞/DN15~DN600
Pressure： Class 150~ CLASS 2500 /PN10~PN420
Suitable temperature： -196℃~600℃
Body material： WCB，SS，duplex ，Hastelloy，Inconel， Monel，Alloy20，Incoloy etc.
Disc material： WCB，SS，duplex ，Hastelloy，Inconel， Monel，Alloy20，Incoloy etc.
Seat Material： PTFE，RPTFE，PEEK，SS，STL etc.
Operation: Handwheel，Penumatic，Electrical，Hydraulic etc.

Main Parts Material:
Body/Cover
Cast Steel
ZG230-450
Disc
High-quality Carbon Steel
25#
Stem
Stainless Steel
2Cr13
Features:
The structure is simple, and manufacturing and maintenance are relatively convenient.
Small working stroke and short opening and closing time.
Good sealing performance, low friction between sealing surfaces, and long service life.
August 29, 2023

BODY、DISC	WCB	CF8/304	CF3M/316L
STEM	2Cr13	304	316L
O RING	304+Flexible graphite	304+PTFE	304+PTFE
PACKING	Flexible graphite	PTFE	PTFE

Part	Material
Body	WCB,QT450
Disc	WCB,QT450
Shaft	2Cr13
O ring	EPDM / NBR/ VITON / PTFE
Packing	Flexible graphite

BODY,DISC	WCB	CF8/304	CF3M/316L
STEM	2Cr13	304	316L
O RING	304+Flexible graphite	304+PTFE	304+PTFE
PACKING	Flexible graphite	PTFE	PTFE

Body/Cover	Cast Steel	ZG230-450
Disc	High-quality Carbon Steel	25#
Stem	Stainless Steel	2Cr13

Author: HF Valves

Triple Eccentric Butterfly Valve

Specification

Main Parts Material:

Features

Product

High-performance Bufferfly Valve

Specification

Main Parts Material:

Feature:

PTFE Lined Flanged Butterfly Valve

Specification

Main Parts Material:

Features:

Fully Welded Butterfly Valve

Main Parts Material:

Features：

Forged Steel Check Valve

Specification

Main Parts Material:

Features:

Product

Lug Type Double Plate Check Valve

Specification

Main Parts Material:

Features:

Product

Wafer Lifting Check valve

Specification

Features:

Swing Check Valve

Swing Check Valve Specification

Main Parts Material:

Features:

Forged Steel Globe Valve

Specification

Main Parts Material:

Features:

Y-Type Globe Valve

Specification

Main Parts Material:

Features: