HM003 Wafer Type Single Disc Check Valve CF8
HM003 is a wafer type single disc check valve made from CF8 material, designed for automatic non-return service in water, low-pressure industrial and heating systems. It operates without manual input, opening under forward flow and closing by spring force and reverse flow. The valve clamps between two pipe flanges, requiring no additional flanges or welding. It is part of a valve programme covering DN10 to DN2600 and 0.05 to 4.0 MPa, with over 600 models produced in-house.
| Model Code | HM003 |
|---|---|
| Product Type | Wafer type Single Disc Check Valve[CF8] |
| Category | Wafer Type Dual Plate Check Valves |
| Manufacturer | Tianjin MIC Valve Co., Ltd. |
| Size and Pressure Rating | Confirmed on quotation |
| Certification | ISO 9001 and ISO 14001 certified plant |
| Model | HM003 |
| Valve Type | Wafer type single disc check valve |
| Material | CF8 |
| Connection | Wafer, clamped between pipe flanges |
| Operation | Automatic, non-return, spring-loaded |
| Series | HM003 wafer check valve series |
What This Model Gives You
- Automatic operation requires no actuator, handle or operator input
- Wafer body clamps between existing pipe flanges, reducing installation cost and complexity
- Spring-loaded disc closes quickly on reverse flow to prevent backflow
- Compact face-to-face length saves space in tight piping layouts
- CF8 body provides good corrosion resistance for water and low-pressure services
- Part of a factory-certified programme under ISO 9001 and ISO 14001
Problems It Removes
- Manual isolation valves require extra space and operator attention; this valve acts automatically
- Gate valves are too long and heavy for tight spaces between flanges
- Lug type check valves require separate end flanges; wafer type uses existing flanges
- Backflow in pump systems causes damage and inefficiency; this valve prevents it automatically
- Buyers need a single supplier for multiple valve types across DN10 to DN2600
Where It Is Installed
- Backflow prevention in pump discharge lines where manual isolation is not needed
- Non-return service in district heating systems with low-pressure water flow
- Automatic isolation in water supply risers where flow direction must not reverse
- Installation in tight spaces between flanges where a gate valve would not fit
- Use in chemical and pharmaceutical process lines where clean, automatic shut-off is required
Buyers It Suits
- Water utility engineers specifying automatic check valves for pump systems
- HVAC contractors installing non-return valves in heating and cooling circuits
- Piping designers needing compact, flange-mounted check valves in retrofit projects
- EPC buyers sourcing low-pressure check valves for water and heating packages
- Valve distributors stocking wafer type check valves across multiple diameters
How It Is Built
- Wafer body clamped between two pipe flanges with through bolts
- Single disc with spring return mechanism for automatic closure
- Disc opens under forward flow and closes by spring and reverse flow
- No handle, actuator or operator required for operation
- Designed for non-return service in water and low-pressure systems
- Part of a wafer check valve series covering DN10 to DN2600
Material Selection
- Body, disc and spring materials are confirmed per order based on the operating medium and temperature
- CF8 is standard for water and low-pressure services; other materials available on request
- Material certificates are issued with the order when requested by the buyer
How It Is Made
- Body castings inspected and machined on in-house fine machining equipment
- Disc and spring assembled and tested for proper spring force and travel
- Valve assembled with disc and spring in place, then tested for automatic operation
- Pressure tested and checked for leakage before packing
- Marked, wrapped and crated for container shipment from Tianjin
How It Is Checked
- Dimensional check of body face-to-face length and flange bolt pattern before assembly
- Spring force and disc travel verified on every unit
- Leakage test performed on the assembled valve under pressure
- Testing carried out on the 10 sets of imported inspection and testing equipment
- Records maintained under the ISO 9001 quality management system
Certificates Issued With This Valve
- ISO 9001 quality management system certification
- ISO 14001 environmental management system certification
Certification statements are limited to the management system certificates the factory actually holds. Product-level approvals for your market are confirmed before order.
What Can Be Changed
- Disc and spring force adjusted for the operating pressure and flow rate
- Flange drilling matched to the buyer’s pipe standard and flange type
- Material variant selected based on the medium and temperature on the buyer’s line
- Private label marking and packing available on OEM orders
- Mixed-diameter orders combined with other valves in one container
How It Compares With the Alternatives
| Lug type check valve | The lug body allows end-of-line service; the wafer body requires flanges on both sides |
|---|---|
| Gate valve with manual isolation | The gate valve requires operator input and more space; this valve acts automatically and is compact |
| Swing check valve | The swing check valve has a larger footprint and slower closure; this valve closes faster with a spring |
| Ball valve with actuator | The ball valve is more expensive and requires actuation; this valve operates automatically with no external power |
Installing and Operating This Valve
- Confirm the flange standard and bolt pattern on both pipe flanges before ordering
- Install the valve with the flow arrow aligned with the system direction
- Do not install the valve upside down; the spring and disc are directional
- Tighten the through bolts evenly in a cross pattern to avoid distortion
- Do not use the wafer body as a pipe end closure during pressure testing
- Inspect the disc movement periodically on lines with infrequent flow
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Sectioning valves non-return protection and joints for distribution mains pumping stations and treatment works.
Petroleum
Isolation and non-return duty on transfer lines tank farms and utility circuits.
Dual Plate Check Valve Selection Guide
How to size and select a wafer dual plate check valve so it closes before the flow reverses.
HM003 Wafer Type Single Disc Check Valve CF8 FAQ
What size and pressure rating is HM003?
The HM003 is available in nominal diameters from DN10 to DN2600 and pressure ratings from 0.05 to 4.0 MPa. The exact size and pressure are confirmed on request based on your line data.
Can this valve be used at the end of a pipe run?
No. A wafer type check valve requires flanges on both sides to clamp against. For end-of-line service, use a lug type body instead.
Which materials are used for the body, disc and spring?
The body is CF8 as standard. The disc and spring materials are confirmed per order based on the medium and temperature. Material certificates are issued on request.
Is this valve suitable for high-pressure systems?
The HM003 is designed for low- and medium-pressure systems up to 4.0 MPa. The pressure rating is confirmed on request for your specific application.
Can it be supplied with a different material than CF8?
Yes. Other materials are available based on the operating medium and temperature. The material combination is confirmed during the quotation process.
What certification does the factory hold?
Tianjin MIC Valve Co., Ltd. is certified to the ISO 9001 quality management system and the ISO 14001 environmental management system.
How do I get a quotation?
Send the model, required size, pressure rating, flange standard, and medium by WhatsApp or email and our sales engineers reply with a quotation and confirmed specification sheet.
Get a Price for HM003 Wafer Type Single Disc Check Valve CF8
Tell us the quantity, flange standard and the medium on your line. You get a quotation with a confirmed specification sheet, not a catalogue page.