What is the difference between Model 1009 (vertical) and Model 1010 (horizontal)?

Model 1009 is spring-loaded and designed exclusively for vertical pipelines. Model 1010 uses gravity-assisted disc closure and is meant for horizontal lines only. Selecting the correct orientation is essential for proper valve function.

Can these valves handle steam service?

These valves are rated for water and oil service with a maximum temperature of 80–90°C. For saturated steam or higher temperatures, consider Zoloto's dedicated steam-rated check valves or consult our engineers.

Is metal-to-metal seating available?

Yes, most models are available with metal-to-metal seating as an alternative to the standard nitrile rubber O-ring or disc facing. Specify this requirement when ordering.

What thread standard do screwed models follow?

All screwed models conform to IS 554 / BS 21 / ISO 7 (BSP threads), ensuring compatibility with standard Indian and international piping.

Which model is suitable for higher pressure applications?

Model 1011 (Heavy Pattern) offers the highest pressure rating at 35 kg/cm² shell test pressure, suitable for demanding industrial service.

ZOLOTO · CHECK VALVES

Zoloto Bronze Check Valves (NRV) – Horizontal, Vertical & Flanged Types

Name: Zoloto Bronze Check Valves (NRV) – Horizontal, Vertical & Flanged Types
Brand: Zoloto

Zoloto bronze check valves (NRV) for water & oil lines. Screwed & flanged, 1/4" to 4". Available at PC Engineering India.

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Overview

Zoloto bronze check valves, also known as non-return valves (NRV), are designed to permit flow in one direction and automatically shut when flow reverses. These valves protect pumps, compressors, and pipelines from backflow damage in water and oil service applications.

The range includes vertical lift check valves, horizontal lift check valves, angle-type check valves, and flanged check valves. All models feature screwed ends conforming to IS 554 / BS 21 / ISO 7 standards, with flanged variants available to BS 10 Table D. Construction materials include bronze (IS 318 Gr. LTB 2) and forged brass (IS 6912 Gr. FLB), ensuring corrosion resistance and durability in industrial environments.

These valves are suitable for plant utilities, water distribution, hydraulic systems, and general-purpose piping where reliable backflow prevention is required.

Key Features

Single-piece body design with integral seat for leak-tight sealing
Screwed female ends to IS 554 / BS 21 / ISO 7; flanged ends to BS 10 Table D
Bronze and forged brass construction for corrosion resistance
Mushroom-shaped disc with spherical seating surface (lift check types)
Spring-loaded option with nitrile rubber O-ring sealing
Disc guided in body and bonnet for stable operation
Metal-to-metal seating option available
Sizes from 1/4" (8 mm) to 4" (100 mm)

Specifications

Model	Type	End Connection	Size Range	Shell Test Pressure	Seat Test Pressure	Max Temp	Body Material
1009	Vertical Lift Check	Screwed (BSP)	1/2" – 4"	25 kg/cm² (350 psi)	16 kg/cm² (225 psi)	80°C	Bronze IS 318 Gr. LTB 2
1009A	Multi-Utility Check	Screwed (BSP)	1/2" – 2"	15 kg/cm² (220 psi)	10 kg/cm² (150 psi)	90°C	Forged Brass IS 6912 Gr. FLB
1010	Horizontal Lift Check (Medium)	Screwed (BSP)	1/4" – 4"	20 kg/cm² (285 psi)	13.5 kg/cm² (192 psi)	80°C	Bronze IS 318 Gr. LTB 2
1010A	Angle Type Lift Check	Screwed (BSP)	1/2" – 2"	24 kg/cm² (340 psi)	16 kg/cm² (225 psi)	80°C	Bronze IS 318 Gr. LTB 2
1011	Horizontal Lift Check (Heavy)	Screwed (BSP)	1/4" – 3"	35 kg/cm² (500 psi)	20 kg/cm² (285 psi)	80°C	Bronze IS 318 Gr. LTB 2
1012	Horizontal Lift Check (Flanged)	Flanged BS 10 Table D	1/2" – 2"	24 kg/cm² (340 psi)	16 kg/cm² (225 psi)	80°C	Bronze IS 318 Gr. LTB 2

Applications

- Water supply and distribution systems - Oil and lubricating lines - Pump discharge lines (backflow prevention) - HVAC and chiller circuits - Fire protection systems - General industrial utilities in manufacturing plants

Frequently Asked Questions

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Contact PC Engineering for pricing, availability, and technical support for Zoloto Bronze Check Valves. Call us or fill in our inquiry form — our engineers will respond within 24 hours.

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