PRODUCTS

DIN/API/ANSI/GOST Natural Rubber Sleeved PP Plastic Manual Pipe Pinch Valve

Size Range:DN15~DN200
Connection Form:Flange

Driving Mode:Manual

Nominal Pressure:Pn16

Channel:Straight Through Type

Structure:Sleeve Type Soft Sealing Plug Valve

Type:Pinch Valve

Function:Relief Valve

Temperature:-20~232

Standard:GB,DIN,ANSI,JIS

Application:Water, Oil, Air

Body Material:Aluminium Alloy,Ductile Iron,Cast Iron,Cast Steel,

Test Standard:Q/Jbgn02,Q/Wnd 01-2015

Place of Origin:Wenzhou

Certificate:CE/ISO/Son/Ts

Flange Dimensions:ANSI B 16.5,ASME B16.47; En1092,DIN2543~DIN2547,as

Connect Type:Flanged Connection

Suitable Medium:Oil,Chemical,Food,Power,Ore PLA

Operation:Hand Operated,Gear Operated, Electrical Actuated

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Description

Specification

I. Product Overview

TIANYU manual pipe pinch valve is a shut-off valve combining natural rubber sleeves with metal bodies, achieving medium on-off control by manually driving the compression of rubber sleeves. Compliant with international standards such as DIN, API, ANSI, and GOST, its core structure consists of a valve body, rubber sleeve, stem assembly, and handwheel. It is suitable for controlling abrasive, scaling, and corrosive media, balancing reliability and cost-effectiveness.

II. Key Attribute Parameters

Basic Parameters
- Connection Type: Flanged connection (compliant with ANSI B16.5, EN1092, DIN, etc.)
- Actuation Method: Manual (handwheel operation, optional gear drive or electric actuator expansion)
- Nominal Pressure: PN16 (1.6MPa)
- Temperature Range: -20℃ ~ 232℃
- Bore Range: DN15 ~ DN200 (covering small to medium-diameter pipeline systems)
Material Configuration
- Valve Body: Aluminum alloy, ductile iron, cast steel (WCB), stainless steel (optional)
- Rubber Sleeve: Natural rubber (alternatives: EPDM, NBR, FPM, IIR, etc.)
- Key Components: Stem/guide rod in SS304 stainless steel, nuts in copper-based alloy for enhanced corrosion resistance.
Medium Compatibility
- Suitable media: Water, oil, gas, slurry, acid-base solutions, mineral pulp, dust, etc., especially ideal for media with solid particles or high viscosity.

III. Structure and Working Principle

Structural Design
The valve comprises a lower body, rubber sleeve, large/small stems, lifting plate, guide rods, etc. The rubber sleeve, as the core sealing component, is embedded in the metal body and fixed at both ends by collets, forming a fully enclosed flow path.
Working Principle
When the handwheel is rotated manually, the stem drives the lifting plate to move vertically, compressing the rubber sleeve by mechanical force:
- Open State: The rubber sleeve restores to a circular shape, enabling full-bore flow with unobstructed medium passage.
- Closed State: The sleeve deforms to a closed position, achieving zero-leakage shut-off.
  The operation principle utilizes rubber elasticity to avoid direct contact between metal parts and media, reducing wear and corrosion.

IV. Manufacturing Processes

Core Component Technologies
- Rubber Sleeve: Formed by compression molding and vulcanization. Natural rubber is vulcanized at high temperature, with an internal surface finish of Ra≤3.2μm for smooth flow paths. Oil/acid-base-resistant formulations are 可选 (available) per medium characteristics.
- Metal Body: Aluminum alloy via low-pressure casting; cast iron/steel via sand casting or precision casting. Surfaces undergo shot blasting followed by anti-corrosion coating (e.g., epoxy resin) for enhanced weather resistance.
- Stem Assembly: SS304 stainless steel processed by CNC lathes, paired with copper-based nuts to reduce friction coefficients and ensure uniform operating torque.
Quality Control
- Rubber sleeves undergo hardness testing (Shore hardness 60±5A) and pressure burst tests (1.5x working pressure static test).
- Complete valves are tested for shell strength and sealing performance per Q/JBGN02 standards, ensuring no leakage under PN16 conditions.
- Certified by CE and ISO 9001; some models pass third-party non-destructive testing (UT/MT).

Product Overview

V. Product Features

Full-Bore Flow Path Design
The fully open valve features a cylindrical rubber tube flow path with a diameter matching the nominal bore, eliminating restriction or eddy currents. Its flow resistance coefficient is only 0.08 (vs. 0.2~0.3 for butterfly valves), suitable for high-velocity media (flow velocity ≤15m/s) with no noise or cavitation issues.
Anti-Scaling and Self-Cleaning Capability
The smooth rubber inner wall (roughness Ra≤1.6μm) resists medium adhesion. During opening/closing, sleeve deformation crushes adhering scale (e.g., calcium-magnesium crystals, sludge), reducing pipeline blockage risks, especially in fouling-prone scenarios like sewage and mineral pulp.
Zero-Leakage Sealing Performance
The elastic wrapping of the rubber sleeve adapts to minor debris (e.g., metal chips, fibers) on the sealing surface, achieving tight sealing via deformation compensation. Leakage is ≤0.01% of rated flow, meeting API 598 tight shut-off requirements.
Wear and Corrosion Resistance
- Rubber sleeves exhibit low abrasion (wear loss ≤150mm³/1.61km), lasting 3~5 times longer than metal valves in particle-laden media.
- For acidic media (pH 2~12), FPM fluoro-rubber sleeves resist corrosion from ≤30% sulfuric/hydrochloric acid.
Maintenance-Free Design
Media only contact the rubber sleeve, keeping metal components isolated from media. Without packing glands or sealing grease, the average service life reaches 8~10 years (normal conditions), reducing maintenance costs by over 40%.

Valve Details

VI. Core Advantages

Advantage Dimension	Technical Details and Value
Hygienic Design	Rubber materials are free from metal ion leaching, compliant with food-grade standards (FDA-certified rubber optional), suitable for beverage and pharmaceutical industries.
Low Turbulence	Smooth flow path without abrupt changes ensures turbulence intensity <5% at Reynolds number Re≤2×10⁵, minimizing medium disturbance and energy loss.
Lightweight Design	Aluminum alloy body is 60% lighter than cast iron. A DN100 valve weighs only 18kg for easy installation and handling.
Explosion Safety	Manual operation eliminates electrical components, making it suitable for flammable environments (e.g., petroleum storage areas), compliant with ATEX explosion-proof standards.
Cost-Effectiveness	Purchasing cost is 30%~50% lower than ball valves of the same bore, with extremely low maintenance costs, offering significant life cycle cost (LCC) advantages.

Application

VII. Application Fields

Industrial Fluid Control
- Power Industry: Ash conveying systems and circulating water pipelines in thermal power plants, resistant to fly ash abrasion.
- Iron & Steel Metallurgy: Blast furnace gas pipelines and continuous casting cooling water control, enduring high-temperature steam and scale erosion.
- Chemical Industry: Acid-base solution transportation and polymer slurry pipelines, with corrosion-resistant rubber sleeves optional.
Municipal and Environmental Protection
- Sludge pipelines (DN150~DN300) in wastewater treatment plants, outperforming gate valves in anti-blocking efficiency.
- Intercepting valves in stormwater pump stations for rapid on-off response to fluctuating flow rates.
Special Working Conditions
- Mortar pipelines in mine filling systems (with particles ≤5mm), featuring rubber sleeve wear rate ≤0.1mm per thousand cycles.
- Flour and syrup transportation in food processing, meeting sanitary standards (EPDM food-grade rubber optional).

Our Strengths

Best Quality Industrial Valve Solutions For You

QUALITY WARRANTY

A warranty of 18 months after delivery or 12 months after installation is provided by TianYu for all supplied valves.

FAST LEAD TIME

General lead time is around 8 weeks(conventional valves) with high efficient production process and regular expedition procedure.

COST-EFFECTIVE PRICE

With A quality but cost-effective supply chain, we offer client with reasonable price and low aftersales cost, to build a healthy and long term partnership.

VALUE ADDED SERVICE

From early bidding to final shipment we have a professional team standby to support client on commercial, technical, quality and transportation issues.

Industrial Applications

Petrochemical Industry

In the petrochemical industry, valves are used to control fluid flow, pressure, and prevent accidents. They are capable of enduring high temperatures and pressures in refinery environments, ensuring safe and smooth operation of processes.

Power Industry

In the power industry, valves are used to control the flow of steam, water, and oil. Globe valves and gate valves in steam pipelines ensure smooth steam transportation, while butterfly valves are commonly used to regulate flow.

Food & Beverage Industry

In the food and beverage industry, valves are used for fluid transportation and control. These valves need to meet sanitary standards to ensure the safety and quality of food products.

Environmental Protection Sector

In the environmental protection sector, valves are used in wastewater treatment systems to control the discharge of sewage, ensuring the effectiveness of wastewater treatment. They play an important role in environmental protection and sustainable development.

Factory Capacity

China Professional Valve Manufacturer & Supplier

Years

Production Equipments

Manufactuing Area

0 m²

Annual Production Value

$ 0

DIN/API/ANSI/GOST Natural Rubber Sleeved PP Plastic Manual Pipe Pinch Valve

Related Products

DIN/API/ANSI/GOST Natural Rubber Sleeved PP Plastic Manual Pipe Pinch Valve

API ASME Fland Ends Sleeve Type Soft Sealing Bronze Plug Valves

DIN Sleeve Type Plug Valve with PTFE Soft Sealing Plug Valves

Flange Size Optional 360° Metal Lip Fixed Bidirectional Flow Soft Seal Plug Valve Sleeve Type Soft Sealing Plug Valve

Specification

I. Product Overview

II. Key Attribute Parameters

III. Structure and Working Principle

IV. Manufacturing Processes

Product Overview

V. Product Features

Valve Details

VI. Core Advantages

Application

VII. Application Fields

Our Strengths

Best Quality Industrial Valve Solutions For You

QUALITY WARRANTY

FAST LEAD TIME

COST-EFFECTIVE PRICE

VALUE ADDED SERVICE

Industrial Applications

Petrochemical Industry

Power Industry

Food & Beverage Industry

Environmental Protection Sector

Factory Capacity

China Professional Valve Manufacturer & Supplier

Honor

Certification

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