Z45X055 Non-rising Stem Resilient Seated Gate Valve BS5163
Z45X055 is a non-rising stem resilient seated gate valve designed for on-off service in water, low-pressure steam, and similar media. It features a resilient rubber seat that provides a tight seal and allows for bidirectional flow isolation. The valve body is cast and machined in-house, with the stem moving through the body without rising, which reduces the vertical space required for installation.
| Model Code | Z45X055 |
|---|---|
| Product Type | Non-rising Stem Resilient Seated Gate Valve[BS5163] |
| Category | Resilient Seated Gate Valves |
| Manufacturer | Tianjin MIC Valve Co., Ltd. |
| Size and Pressure Rating | Confirmed on quotation |
| Certification | ISO 9001 and ISO 14001 certified plant |
| Model | Z45X055 |
| Valve Type | Non-rising stem resilient seated gate valve |
| Standard | BS5163 |
| Nominal Diameter | Confirmed on request |
| Nominal Pressure | Confirmed on request |
| Operation | Manual, handwheel or gearbox |
| Series | Z45X055 non-rising stem gate valve series |
What This Model Gives You
- Non-rising stem saves vertical space in tight installations where overhead clearance is limited
- Resilient seat provides a tight seal under low to medium pressure and reduces wear over time
- Compact design fits into tight spaces between flanges, especially in retrofit or confined areas
- Bidirectional sealing allows installation without regard to flow direction
- Built within a valve programme certified to ISO 9001 and ISO 14001
- Part of a range covering DN10 to DN2600 with pressure ratings from 0.05 to 4.0 MPa
Problems It Removes
- Rising stem valves require overhead clearance that is not available in many retrofit or confined spaces
- Traditional gate valves with metal seats may wear faster and leak under repeated cycling
- Lack of bidirectional sealing forces careful orientation during installation, increasing error risk
- Inconsistent valve profiles across suppliers make spare parts and maintenance difficult to manage
- Buyers need a single source for valves from DN10 to DN2600 with consistent performance and certification
Where It Is Installed
- Isolation of branch lines in water distribution systems where vertical space is limited
- Control of flow in low-pressure heating circuits in industrial buildings and district heating plants
- On-off service in chemical process lines handling non-corrosive liquids at medium pressure
- Installation in pump suction and discharge lines where overhead clearance is restricted
- Use in sewage treatment plants where space constraints and bidirectional sealing are required
Buyers It Suits
- Water utility engineers sourcing reliable isolation valves for municipal distribution networks
- HVAC and mechanical contractors installing valves in tight plant rooms or basements
- EPC firms standardising on non-rising stem valves for consistent space management
- Valve distributors stocking medium- and low-pressure gate valves across a wide diameter range
- Industrial plant operators needing durable, low-maintenance valves for routine on-off service
How It Is Built
- Non-rising stem design with stem threaded into the gate and sealed by a gland
- Resilient rubber seat providing a tight seal and reducing friction during operation
- Gate moves linearly within the body, with no stem rise during opening or closing
- Body and bonnet cast from ductile iron or carbon steel, depending on the variant
- Suitable for use in water, low-pressure steam, and non-corrosive liquids
- Part of a valve programme covering DN10 to DN2600 and 0.05 to 4.0 MPa
Material Selection
- Body, gate, stem, and seat materials are confirmed per order based on the medium and temperature
- Resilient seat made from rubber or elastomer compatible with the service medium
- Material certificates are issued with the order when requested by the buyer
- Available in ductile iron and carbon steel variants depending on the application
How It Is Made
- Body and bonnet cast and inspected for defects before machining
- Stem and gate machined to precise tolerances on in-house fine machining equipment
- Resilient seat fitted and aligned to ensure even contact with the gate
- Assembly completed with stem gland and packing to prevent leakage
- Valve tested for tightness and operating torque before packing
- Marked, wrapped, and crated for shipment from Tianjin
How It Is Checked
- Dimensional checks on body face-to-face length and flange bolt pattern before assembly
- Seat tightness test performed on the assembled valve under test pressure
- Operating torque and full linear travel verified on every unit
- Testing conducted 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
- Seat material selected based on the service medium and temperature
- Flange drilling matched to the buyer's pipe standard (e.g., BS, ANSI, JIS)
- Handwheel, gearbox, or actuator fitted before shipment upon request
- Private label marking and packaging available for OEM orders
- Mixed-diameter orders combined with other valves in one container for export
How It Compares With the Alternatives
| Rising stem gate valve | The rising stem valve requires overhead space; the non-rising stem saves vertical clearance |
|---|---|
| Metal seated gate valve | The metal seated valve handles higher temperatures and pressures but has higher operating torque and wear |
| Butterfly valve | The butterfly valve is shorter and lighter but does not provide full bore or as tight a seal at low pressure |
| Lug type gate valve | The lug type allows end-of-line service; the non-rising stem valve requires flanges on both sides |
Installing and Operating This Valve
- Confirm the flange standard and bolt pattern on both pipe ends before ordering
- Ensure the valve is fully closed before installing between flanges to avoid seat damage
- Tighten the handwheel evenly and avoid over-tightening to prevent stem binding
- Open and close the valve periodically on lines that remain in one position for long durations
- Do not use the valve as a throttling device; it is designed for on-off service only
- Inspect the stem gland and packing regularly for leaks during operation
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View SpecificationZ45X055 Non-rising Stem Resilient Seated Gate Valve BS5163 FAQ
What size and pressure rating is Z45X055?
The nominal diameter and pressure rating are confirmed on request based on the buyer's line data, as the same model is offered in multiple variants.
Can this valve be used at the end of a pipe run?
No. A non-rising stem gate valve requires flanges on both sides to secure the body. For end-of-line service, consider a lug-type or end-cap design.
Which materials are used for the body, gate, and seat?
Material selection depends on the medium and temperature. We confirm the combination with the quotation and issue material certificates on request.
Can it be supplied with a gearbox or actuator?
Yes. The stem accepts a handwheel, gearbox, or pneumatic/electric actuator, and the valve can be assembled and tested with the actuator before shipment.
Do you supply the larger diameters in the same series?
Yes. The Z45X055 series continues through the larger nominal diameters, and our valve programme covers DN10 to DN2600 across all families.
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, quantity, flange standard, and medium by WhatsApp or email and our sales engineers reply with a quotation and a confirmed specification sheet.
Get a Price for Z45X055 Non-rising Stem Resilient Seated Gate Valve BS5163
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.