20 Years Factory Customization MD Series Cage-Type Control Valve with CE/ISO

• Customization: Available
• Media: Steam/Water
• Certification: ISO
• Model NO.: MD
• Temperature: -196~649ºC
• Connection: Flange
• Valve Seat: Single-Seat
• Structure: Diaphragm
• Material: Cast Steel
• Pressure Rating: Class 150~Class 600
• Leakage Grade: Leakage Level IV to V
• Flow Characteristics: Linear/Equal Percentage
• Driving Mode: Pneumatic/Electric
• Transport Package: Land Transportation/Sea Transportation
• Specification: 1-1/2" ~ 20"
• Trademark: Meiya
• Origin: China
• Production Capacity: 500PCS/Y

Product Description

MD Series Cage-Type Regulating Valve

The sturdy valve cage guiding mechanism ensures that the valve core remains stable throughout its movement,  with small amplitude vibration and low operating noise.The seat ring with sealing surface provides superior open & close performance and high-precision flow characteristic curves. It features   quick-replaceable valve trims, easy-to-maintain packing, and simplified full-valve repairs. According to different working conditions, single-stage or multi-stage sleeve valve teimls can be selected. It is primarily used in general and harsh environments involving high&low-temperature media.Additionally, it achieves tight shut-off and is well-suited for clean fluids and gases under high differential pressure conditions.

Specification

Main Technical Specifications

1.Flow characteristic: Equal percentage/linear/quick-opening

2.Inherent adjustable ratio: 50:1

3.Leakage class:

Conform to ANSI/FCI & IEC60534-4 IV(standard); V, VI(optional)
4.Operating temp.:

-196~649ºC(Depend on the  material's temperature limits)
5.Intrinsic error: ±1%

6.Backlash:±1%

7.Dead zone:0.8%

8.Connection standard:

Flange connection:ASME B16.5

Threaded/socket weld connection: ASME B16.11

Butt weld connection:ASME B16.25

9.Optional internals:Micro-flow valve core

Sectional view

Physical photo

Dimension drawing (for detailed data, please refer to the table below)

Technical Specifications

(Custom configurations available upon request.)

No.	Component	Material	Temperature range
1	Valve body	WCB/WC6, WC9/CF8, CF3M	-196~593ºC(Depend on thematerial's temperature limits)
2	Seat sealingring	316 stainless steel+graphite	-196~593ºC
3	Valve cage	304/17 - 4PH/CA6NM	same as valveservice temp.
4	Valve coreform	see the table below for details
5	Bonnet sealing ring	316 stainless steel+graphite	same as valveservice temp.
6	Packing	PTFE V-ring	-40~232ºC(other medium)
		PTFE + composite material	-73~232ºC(oxydic medium)
		soft graphite	-196~538ºC(other medium)
			-196~371ºC(oxydic medium)
		soft graphite(high O2 dennsity)	-196~593ºC
7	Valvestem	304/17 - 4PH/38CrMoAlA	same as valveservice temp.
8	Packing bushing	304 stainlesssteel	-196~593ºC

Product Dimensions (mm)

Basic ordering requirements

For customized desuperheating and pressure-reducing devices or valves, please provide the corresponding data as presented in the table below.

Device model
Device name					Quantity (sets)
Inlet steam flow rate Q(t/h)			Range of change
Imported steam pressure P1(MPa)			Range of change
Imported steam temperature T1(℃)			Range of change
Rated outlet steam pressure P2(MPa)			Deviation range
Rated outlet steam temperature T2(℃)			Deviation range
Pressure of deheated water Pb(MPa)			Range of change
Temperature of deheated water Tb(℃)			Range of change
Noise(dBA)		The layout method and structural form of the device			1,Horizontal     2,Vertical
Dimensions of imported pipelines	Flange	Dimensions of the outlet pipeline		Flange	The size of the desuperheating water pipe
	Welding			Welding
Control mode
The required documents
Others	1,Electric control      2,Pneumatic control       3,Hydraulic control
enforce standards Special requirements

After Sales Service

Warranty period: Within 12 months from the date of equipment acceptance and normal use, or 18 months from the date of arrival, whichever comes first
Training: Remote operation/maintenance training

After-sales service commitment: Lifetime provision of spare parts and maintenance services. During the product warranty period, any manufacturing quality issues shall be repaired or replaced by the supplier

Company Profile

Hangzhou Meiya Generating Equipments Co., Ltd.

Hangzhou Meiya Power Generation Equipment Co., Ltd. was established in 1998.It has wholly-owned subsidiaries: Anhui Meiguan  Fluid  Control  Co.,  Ltd. and Zhejiang Meiguan Energy Saving Engineering Co.,  Ltd. The corporation specializes in control systems and industrial applications for steam, air, hot water, and other process fluids, delivering optimal energy-saving and environmentally friendly solutions for steam thermal systems. Core product lines encompass: temperature and pressure reducing devices, pressure reducing valves, control valves, turbine bypass valves, severe service regulating valves, steam ejectors, condensate recovery systems, plate heat exchanger units, in-line steam separators, steam traps, industrial valves, and instrumentation control systems. These products find extensive application across  power generation, metallurgy, petrochemical, biochemical, and other industrial sectors.

The company has a dedicated, cooperative, and united development and engineering technical service team, which brings together elites in machinery, power, chemical, computer, automation control, automation instrumentation, HVAC, air conditioning, water supply and drainage, etc., including 11 experts with senior titles. The company adheres to the quality policy of  "leading technology, high quality and efficiency,customer first,and abiding by the contract". Meiyaleverages its unique talent and technological advantages to maintain an industry-leading position in product development and quality.

With a comprehensive quality management system certified by ISO 9001:2008, the company obtained the Special Equipment Manufacturing License of the People's Republic of China issued by the General Administration of Quality Supervision, Inspection and Quarantine in 2010, covering pressure regulating valves  (Class  A1), temperature and pressure reducing devices (Class B), globe valves, check valves (Class  A2), gate valves, ball valves, and butterfly valves (Class B).

Why Choose Us?

Other Products

20 years of production experience

Professional technical team

Faster and more accurate response speed

Competitive pricing & bulk discounts

Control valve
Pressure reducing valve
Steam pipeline
Atomizing nozzle

Locator

Executive body

FAQ

Q: What's the lead time for orders?
A: Customized units require 60-90 days.

Q: Can I request a customized valve size?
A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.