Author: HF Valves

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 structure, convenient manufacturing and maintenance
Small working stroke and short opening and closing time
Stem after the modulation and surface nit riding treatment, has a good corrosion
Less friction force between sealing surface, long life.

August 29, 2023

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
Product
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
Product
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
Product
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
Product
Pressure Seal Gate Valve
Pressure Seal Gate Valve is designed for high pressure and high temperature service, providing reliable shut-off performance and long-term durability. Featuring a pressure seal bonnet design, it reduces leakage risk and ensures stable operation under demanding conditions. It is widely applied in power generation, oil & gas, petrochemical, and steam pipeline systems. Available in cast steel construction with customized solutions to meet various industrial requirements.
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

Stainless Steel Gate Valve

Product

Stainless Steel Gate Valve

Stainless Steel Gate Valve is a corrosion-resistant industrial valve designed for reliable shut-off and flow isolation. Made from high-quality stainless steel, it offers excellent durability, strength, and long service life. Widely used in chemical, food processing, pharmaceutical, oil & gas, water treatment, and industrial pipeline systems, it is suitable for applications requiring clean, safe, and efficient fluid control.

Specification

Size: NPS 2″ ~32″
Pressure: 150LB -900LB
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: Handwheel, Worm Gear, Electric actuator, Pneumatic actuator, Hydraulic Actuator.

Main Parts Material:

Part Name	ZG1Cr18Ni9T i304 CF8	ZGOOCr18Ni10 304L CF3	ZG1Cr18Ni12Mo 2Ti316 CF8M	zgoocR17nI14mO2 316L CF3M	WCB
Body/Cap	OCr18Ni9	OOCr18Ni10	OOCr18Ni9Mo2	OOCr18Ni10Mo2	WCB
Stem	OCr18Ni9	OOCr18Ni10	OOCr18Ni9Mo2	OOCr18Ni10Mo2	1Cr3
Stem Packing	PTFE	PTFE	PTFE	PTFE	Graphite
Gasket	304+PTFE	304L+PTFE	316+PTFE	316L+PTFE	Graphite+304
Gland Flange	OCr18Ni9	OOCr18Ni10	OOCr18Ni9Mo2	OOCr18Ni10Mo2	WCB
Bolt	Stainless Steel				34GtMoA
Nut	Stainless Steel				45

Features:

The sealing surface of the gate and seat is made of cemented carbide overlay welding of different hardness, which is well sealed and long in use;
The valve stem is tempered and surface nitride, and has good corrosion resistance, scratch resistance and wear resistance;
Flexible gate structure, medium and large diameter thrust bearings are set, the friction force is small, and it is equipped with a handwheel, easy to open and close.
It can adopt piping flange standard and flange sealing surface form, which meets the engineering needs and user requirements.

August 29, 2023

Cast Steel Gate Valve
Product
Cast Steel Gate Valve
Cast Steel Gate Valve is a durable industrial valve designed for reliable shut-off and flow isolation in demanding applications. Manufactured with a cast steel body, it provides excellent strength, corrosion resistance, and long service life. Widely used in oil and gas, petrochemical, power generation, water treatment, and industrial pipeline systems, it is suitable for high pressure and high temperature media.
Specification
Size: NPS 2”~40”
Pressure: 150LB~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
ASTM A216 WCB
ASTM A351 CF8
Disc
WCB
CF8
CF8M
MONEL

Stem
F6
F304
F316
MONEL
F304
Seat
13Cr 13Cr STL
304 STL
316 STL
MONEL
304 304 STL
Features:
Compact structure, small size, good rigidity, safe and reliable .
The closing element (gate) adopts an elastic structure, which can automatically compensate for valve body deformation caused by abnormal load or temperature during operation.withthe reliable sealing。
For 150LB manual valves with a diameter large or equal to NPS10 “, and pressure 600LB-2500LB largeror equal to NPS6”, are equipped with rolling bearings in their operating devices for easy opening and closing.
The main materials,trimand fasteners can be reasonably combined according to user requirements or actual working conditions.
For valves≤ 10 “, the valve seat can be replaced.
July 25, 2023
Ventilation Butterfly Valve
Product
Ventilation Butterfly Valve
Ventilation Butterfly Valve is specially designed for air, gas, and exhaust gas flow control in ventilation and industrial duct systems. With a simple structure, low operating torque, and reliable shut-off performance, it ensures efficient and stable operation. It is widely used in HVAC systems, power plants, dust collection systems, and industrial ventilation applications, providing a cost-effective solution for airflow regulation and isolation.
Specification
Size: NPS 2”-8”
Pressure: 150LB
Body Materials: 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
June 21, 2023

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

Body	ASTM A216 WCB				ASTM A351 CF8
Disc	WCB	CF8	CF8M	MONEL
Stem	F6	F304	F316	MONEL	F304
Seat	13Cr 13Cr STL	304 STL	316 STL	MONEL	304 304 STL

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

Author: HF Valves

Product

Cast Steel Globe Valve

Specification

Main Parts Material:

Features:

Product

Forged Steel Gate Valve

Specification

Main Parts Material:

Features:

Product

KNIFE GATE VALVE

Specification

Main Parts Material:

Features

Product

Cryogenic Gate Valve

Specification

Main Parts Material:

Features:

Product

High-Pressure Gate Valve

High-Pressure Gate Valve Specification

Main Parts Material:

Features:

Product

Pressure Seal Gate Valve

Specification

Main Parts Material:

Features:

Product

Stainless Steel Gate Valve

Specification

Main Parts Material:

Features:

Product

Cast Steel Gate Valve

Specification

Main Parts Material:

Features:

Product

Ventilation Butterfly Valve

Specification

Main Parts Material: