Author: HF Valves

Forged Steel Check Valve

Product

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, SW, BW, RTJ

Temperature: -29°C ~ 550°C

Main material: carbon steel, stainless steel, alloy steel

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

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

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
The inverted seal is made of stainless steel threaded connection sealing seat or body overlay welding austenitic stainless steel, the seal is tight, and the packing replacement and maintenance can be carried out without stopping, which is convenient and fast and does not affect the operation of the system

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

Product

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

Product

Forged Steel Globe Valve

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
Product
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

Bellows Sealed Globe Valve

Product

Bellows Sealed Globe Valve

Specification

Size Range: DN15-DN400

Pressure: PN16/25/40/64

Body Materials: WCB/CF8/CF8M

Disc Materials: A105+13Cr/CF8

Stem Materials: 2Cr13/304

Face to face dimension: DIN3202

Flanged ends: DIN2543-2545

Test & inspection: DIN3230

Working temperature：-29℃～425℃

Suitable medium：Water,Oil,Gas etc.

Application ：Municipal construction, Power, Medicine, Petroleum industry

Main Parts Material:

Body	Bonnet	Stem	Disc	Seat	Paking
WCB	WCB	13Cr	2Cr13	2Cr13	Flexible graphite
				STL
CF8	CF8	304	304	304	Flexible graphite
				STL	PTFE
CF8M	CF8M	316	316	316	Flexible graphite
				STL	PTFE
CF3	CF3	316	304L	304L	Flexible graphite
				STL	PTFE
CF3M	CF3M	316	316L	316L	Flexible graphite
				STL	PTFE

Features :

Bellows sealed globe valve is simple in structure and good in performance.
The stem nut adopts surface nitriding to improve the surface hardness .
The medium flange bolt is made of high-strength alloy steel, with the ability to resist high temperatures.
Double sealing of packing and bellows to achieve zero leakage.
The bellows is designed in the inner cavity of the valve cover, which avoids direct flushing with the medium and improves the service life of the bellows.
The bellows adopts 2~4 times overlap to prevent the valve leakage due to the damage of the single layer of the bellows, and prolong the service life of the valve.

August 29, 2023

Pressure Seal Globe Valve
Product
Pressure Seal Globe Valve
Our pressure seal globe valves are widely adopted for high-pressure pipeline systems. Built with a reliable pressure seal bonnet design, they maintain stable sealing performance under extreme operating conditions. We supply a full selection of sizes and material options to suit oil and gas, power and chemical industry projects.
Specification
Size: NPS2″~24″
Pressure : Class900/Class1500/Class2500
Face to face: ASME B16.10
Flange Dimension Standards：ASME B16..5
Design ：API602, ASME 16.34, BS 5352, BS 6364
Test: API598
Operation: Handwhel, Worm Gear, Electric actuator, Pneumatic actuator, Hydraulic Actuator.

Main Parts Material:
Body/Disc/Bonnet
Stem
Packing
WCB
F6a
Graphite
WC6
38CrMoALA
Graphite
CF8
F304
Graphite
CF3
F316
Graphite
Features:
Simple structure, convenient manufacturing and maintenance. The working stroke is short, short time to open and close
Not suitable for media with particles, large viscosity, easy to coke.
Sealing surface overlay welding CR13, cemented carbide or body, wear resistance, high temperature resistance, long life.
August 29, 2023
Cryogenic Globe Valve
Product
Cryogenic Globe Valve
Specification
Size: 1/2″–24″ (DN15–DN600)
Pressure : Class 150–Class 600/PN1.6~2.5Mpa
Main Material: LCB、LF1、 LF3、LC3、 CF8、 F304 ect.
Suitable Temperature: -45°C~ 196°C
Design: JB/T 7749-95
Face to face : GB/T 12221-1989
Test: JB/T 9092-19991/2″–24″ (DN15–DN600)

Main Parts Material:
Body/Bonnet
LCB
LC3
LCB
LC3
LCB
LC3
Stem
1Cr7Ni12
Seat
STL/STL
Packing
PTFE . Flexible graphite
Features:
The fluid resistance is small, and the sealing surface is less affected by the brushing and erosion of the medium.
Easy to open and close.
The flow direction of the medium is not limited, no disturbance and no pressure reduction.
Simple shape, short structure length, good manufacturing process, wide range of application.
It is easy to cause erosion and abrasion between the sealing surfaces, and maintenance is more difficult.
The appearance size is large, and a certain space is required for opening. Take long time to open and close.
The structure is more complicated.
August 29, 2023

Industrial Stainless Steel Globe Valve

Product

Stainless Steel Globe Valve

Specification

Size Range: DN50-DN300/2”-32”

Pressure: PN1.6~16.0MPa/150LB-900LB

Connection: RF, RTJ, BW

Body Materials: SS304

Seat Materials: stainless steel / alloy steel

Disc Materials: CF3/ CF3M/CF8/CF8M

Stem Materials: 2Cr13/ 304/316

Suitable Medium：Water, weak corrosive medium, etc.

Application: Water treatment, petrochemical, food and medicine, electric energy, metallurgy, etc.

Main Parts Material:

Body/Bonnet	Stem	Seat	Gasket	Packing	Tem.	Medium
WCB	2Cr13	13Cr STL Body Material Nylon	Enhanced Flexible Graphite 13Cr/flexible graphite Enhanced Flexible Graphite 1Cr13/Flexible GraphiteSFB-2 F304 F316 F304L F316L	Flexible Graphite Enhanced Flexible Graphite Flexible Graphite Enhanced Flexible Graphite SFB/260 SFP/260 PTFE	≤425	Water, steam, oil
WC1	38CrMoAl 25Cr2MoV				≤425
WC6					≤540
WC9					≤570
C5 C12					≤540
CF8	F304				≤200	Nitric acid, acetic acid, urea
CF8M	F316
CF3	F304L
CF3M	F316L

Features:

Precision casting valve body,shot blasting treatment,smooth appearance, no trachoma.
Heavy type valve body.
Inverted seal treatment of contact surface between bonnet and stem to avoid leakage.
Valve body is pickled and passivated to make the casting uniform and bright and improve corrosion resistance
Each valve will be inspected for shell and seal pressure before leaving factory.

August 29, 2023

Part	Material
Body	WCB、304、316、316L
O ring	NBR、VITON
Disc	304、316、316L
Gland	304、316、316L
Shaft	304、316、316L

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

Body/Disc/Bonnet	Stem	Packing
WCB	F6a	Graphite
WC6	38CrMoALA	Graphite
CF8	F304	Graphite
CF3	F316	Graphite

Body/Bonnet	LCB	LC3	LCB	LC3	LCB	LC3
Stem	1Cr7Ni12
Seat	STL/STL
Packing	PTFE . Flexible graphite

Author: HF Valves

Product

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:

Product

Swing Check Valve

Swing Check Valve Specification

Main Parts Material:

Features:

Product

Forged Steel Globe Valve

Specification

Main Parts Material:

Features:

Product

Y-Type Globe Valve

Specification

Main Parts Material:

Features:

Product

Bellows Sealed Globe Valve

Specification

Main Parts Material:

Features :

Product

Pressure Seal Globe Valve

Specification

Main Parts Material:

Features:

Product

Cryogenic Globe Valve

Specification

Main Parts Material:

Features:

Product

Stainless Steel Globe Valve

Specification

Main Parts Material:

Features: