Author: HF Valves

Bellows Sealed Globe Valve

Bellows sealed globe valve adopts bellows seal structure to eliminate stem leakage. Suitable for high temperature and high pressure media such as steam and hot oil, widely used in petrochemical and power industries.

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
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
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

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-cast body with smooth, clean surface finish
Heavy-duty construction for enhanced strength and durability
Backseat design for improved stem sealing
Pickling and passivation for enhanced corrosion resistance
100% shell and seat pressure tested before shipment

August 29, 2023

Cast Steel Globe Valve

Specification

Size Range: 2’’~12”/DN15~DN300

Pressure: 150LB~2500LB

Connection: RF, RTJ, BW

Design: API600

Test: API598

BW: ASME B16.25

FACE TO FACE: ASME B16.10

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 Graphite SFB-2 Soft Steal 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:

Simple and robust construction for reliable operation
Easy maintenance and convenient in-line servicing
Excellent throttling and flow regulation performance
Nitrided stem surface for improved wear and corrosion resistance
Hard-faced seating surfaces for enhanced durability and tight shut-off
Long service life with reliable sealing performance

August 29, 2023

Forged Steel Gate Valve

Product

Forged Steel Gate Valve

Forged Steel Gate Valve is manufactured from high-quality forged steel materials, offering excellent strength, durability, and reliable sealing performance. It is widely used in oil, gas, chemical, power generation, and high-pressure pipeline systems. The valve controls the flow by moving the gate vertically, providing low flow resistance and stable operation. Thanks to the forging process, it features enhanced pressure resistance, corrosion resistance, and superior performance under high-temperature and high-pressure conditions. With a compact design, long service life, easy operation, and convenient maintenance, it is an ideal shut-off solution for demanding industrial applications.

Specification

Size: NPS3/4”-2”

Class: 150Lb~2500Lb

Working temperature: -29～500℃

Body material: A105, F304, F316, F51 Duplex

Design: API 602

Connection: RF, SW, BW, RTJ ASME B16.11 ASME B16.25 ASME B16.5

Face to face: ASME B16.10

Test: API 598

NACE: NACE MR 0103 NACE MR 0175;

Applications: Oil and Gas, Petrochemical, Power Plant, Steam System, Refinery

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 filler, reliable sealing, and easy and flexible operation.
The flow direction of the medium is unrestricted, does not disturb flow, and does 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

Knife Gate Valve
KNIFE GATE VALVE
Knife Gate Valve is designed for reliable shut-off and isolation of challenging media in industrial pipeline systems. Featuring a sharp-edged gate design, it can effectively handle slurry, pulp, wastewater, powder, and other viscous media. With a compact structure, low pressure drop, and easy maintenance, it provides excellent sealing performance and long service life. Widely used in water treatment, mining, pulp & paper, chemical, and power industries.
Specification
Size: DN50-DN800
Pressure: PN10-PN16
Main material: WCB 、Ductile Iron、Stainless steel
Valve seat: PTFE
Connection: Wafer. Flange
Operation: Handwheel,Electric,Penumatic

Main Parts Material:
Body
Stem
Sealing
Packing

WCB
WCB
2Cr13
Hard-alloy, PTFE
V-shape PTFE,Flexible graphite Rings
SS304
ZG1Cr18Ni9Ti
0Cr18Ni9 (304)
SS304
SS304
0Cr18Ni9 (304)
Features
The fluid resistance is small, and the sealing surface is less washed and eroded by the medium.
Easyto open and close.
The flow direction of the medium is not limited, and the pressure is not disturbed or reduced.
Durable and simple to use.
Simple shape, short structure length, wide range of application.
August 29, 2023
Cryogenic Gate Valve
Cryogenic Gate Valve

Our Cryogenic Gate Valve is designed in two different bonnet types. One is bolted bonnet, where the valve body and bonnet are connected by bolt nuts and wound gaskets (316 clamp flexible graphite). Metal ring connections are also available for special requirements. The other type is welded bonnet with threaded connection between valve body and bonnet.
Specification
Size: DN15~800mm
Pressure : 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 9092-1999

Main Parts Material:
Body/Bonnet
Stem
Seat
Gasket
Packing
Medium
LCB
1Cr7Ni12

STL/STL
1Cr13/Flexible
graphite
Low-temperature asbestos
PTFE
Flexible graphite
Propane/propene
Methanol/ethane
Gas/liquid ammonia
LC1
LC2
LC3
LC4
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
High-Pressure Gate Valve
High-Pressure Gate Valve
High-Pressure Gate Valve is an industrial valve designed for high pressure and high temperature applications. With a robust wedge gate structure, it offers excellent sealing, low pressure drop, and long service life. Widely used in oil and gas, petrochemical, power generation, and industrial pipeline systems, it ensures reliable shut-off and safe flow isolation for critical media.
High-Pressure Gate Valve Specification
Size: NPS 2″~18″
Pressure : Class1500/Class2000/Class2500/Class3500
Main Material: WCB; WC1,WC6,WC9 CF8M, CF3M, CF3 ;LCB,LCC etc.
Design: API600
Test: API598
BW: ASME B16.25
FACE TO FACE: ASME B16.10

Main Parts Material:
BODY
BODY.BONNET.GATE
STEM
PACKING
WCB
CF8
CF8
Flexible graphite
WC6
WC6
38CrMoALA
Flexible graphite
ZG1Cr5Mo
ZG1Cr5Mo
38CrMoALA
Flexible graphite
CF8
CF8
F304
Flexible graphite
Features:
Reasonable structure design, good performance, smooth channel and small flow coefficient
The sealing surface is made of stainless steel and hard alloy, witha long service life.
The use of flexible graphite filler, reliable sealing performance, light and flexible operation
August 29, 2023
Pressure Seal Gate Valve
Pressure Seal Gate Valve
Pressure seal gate valve is specially engineered for extreme high-pressure working conditions, widely adopted in power station and critical industrial pipeline systems. The pressure seal bonnet design ensures tight sealing as pressure rises, eliminating leakage risks under severe service. It is suitable for steam and other high-pressure media, available for large-scale power & energy projects.
Specification
Size: NPS 2″~24″
Pressure : 900LB~2500LB
Connection: RF, RTJ, BW
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
WCB
WC6
CF8
CF3
Disc
WCB
WC6
CF8
CF3
Stem
F6a
38CrMoALA
F304
F316
Packing
Packing
Graphite
Graphite
Graphite
Applicable medium:
water, steam，other non-corrosive medium
Features:
The fluid resistance is small, and the sealing surface is less brushed and eroded by the medium.
Easy to open and close.
The flow direction of the medium is not limited, and the pressure is not disturbed or reduced.
Simple shape, short structure length, good manufacturing process, wide range of application.
Unique self-sealing design, the higher the pressure, the more reliable the sealing.
August 29, 2023

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

Body	Stem	Sealing	Packing
WCB	WCB	2Cr13	Hard-alloy, PTFE	V-shape PTFE,Flexible graphite Rings
SS304	ZG1Cr18Ni9Ti	0Cr18Ni9 (304)
SS304	SS304	0Cr18Ni9 (304)

Body/Bonnet	Stem	Seat	Gasket	Packing	Medium
LCB	1Cr7Ni12	STL/STL	1Cr13/Flexible graphite Low-temperature asbestos	PTFE Flexible graphite	Propane/propene Methanol/ethane Gas/liquid ammonia
LC1
LC2
LC3
LC4

BODY	BODY.BONNET.GATE	STEM	PACKING
WCB	CF8	CF8	Flexible graphite
WC6	WC6	38CrMoALA	Flexible graphite
ZG1Cr5Mo	ZG1Cr5Mo	38CrMoALA	Flexible graphite
CF8	CF8	F304	Flexible graphite

Author: HF Valves

Bellows Sealed Globe Valve

Specification

Main Parts Material:

Features :

Pressure Seal Globe Valve

Specification

Main Parts Material:

Features:

Cryogenic Globe Valve

Specification

Main Parts Material:

Features:

Stainless Steel Globe Valve

Specification

Main Parts Material:

Features:

Cast Steel Globe Valve

Specification

Main Parts Material:

Features:

Product

Forged Steel Gate Valve

Specification

Main Parts Material:

Features:

KNIFE GATE VALVE

Specification

Main Parts Material:

Features

Cryogenic Gate Valve

Specification

Main Parts Material:

Features:

High-Pressure Gate Valve

High-Pressure Gate Valve Specification

Main Parts Material:

Features:

Pressure Seal Gate Valve

Specification

Main Parts Material:

Features: